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773 Area CodeChicago, IL

Area code 773 covers Chicago, Illinois: 2,367,030 people in Cook County, on Central Time (CT). It overlays 872.

Overview

Major City
Chicago
State
Illinois (IL)
Timezone
Central Time (CT)
Current Time
–:––
Overlay
Yes – shares area with 872

Nearby Area Codes

Where is area code 773?

Overview of the 773 Area Code

Geographic Coverage of the 773 Area Code

Chicago Area Codes Overview

What cities does area code 773 cover?

CityStatePopulationPopulation in 773% of listed-city population% of City
ChicagoIL2,721,3082,319,915100.0%85.3%

City population is shown in full; each city's share inside 773 is measured from Census tract centroids.

What counties does area code 773 cover?

CountyStatePopulation in 773% of area-code footprint% of County
Cook CountyIL2,367,030100%45%
Sources:

Has area code 773 been reported for unwanted calls?

Yes – 1,848 FTC complaints, May 29 – Oct 1, 2026.

  • 60% robocalls
  • ↑ 12% vs prior period
  • FTC data, retrieved 2026-10-05

Most-reported subjects

  • Other43%793
  • Dropped call or no message12%222
  • Calls pretending to be government, businesses, or family and friends11%210

Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints.

Which prefixes and exchanges belong to area code 773?

78% assigned to a telco

  • 58% Landline
  • 42% Wireless
  • 0% Unknown
PrefixUsageCarrier
(773)201-WirelessUsa Mobility Wireless
(773)202-LandlineIllinois Bell Tel Co
(773)203-WirelessNew Cingular Wireless Pcs
(773)204-WirelessUsa Mobility Wireless
(773)205-LandlineIllinois Bell Tel Co
(773)206-WirelessNew Cingular Wireless Pcs
(773)207-LandlineOnvoy
(773)208-WirelessNew Cingular Wireless Pcs
(773)209-WirelessSprint Spectrum
(773)210-LandlineIllinois Bell Tel Co
(773)212-WirelessUsa Mobility Wireless
(773)213-WirelessNew Cingular Wireless Pcs
(773)214-WirelessUsa Mobility Wireless
(773)215-WirelessUsa Mobility Wireless
(773)216-WirelessSprint Spectrum
(773)217-WirelessNew Cingular Wireless Pcs
(773)218-WirelessNew Cingular Wireless Pcs
(773)219-WirelessT-Mobile Usa
(773)220-WirelessSprint Spectrum
(773)221-LandlineIllinois Bell Tel Co
(773)222-WirelessUsa Mobility Wireless
(773)223-WirelessUsa Mobility Wireless
(773)224-LandlineIllinois Bell Tel Co
(773)225-WirelessT-Mobile Usa
(773)226-WirelessT-Mobile Usa
(773)227-LandlineIllinois Bell Tel Co
(773)228-WirelessUsa Mobility Wireless
(773)229-LandlineIllinois Bell Tel Co
(773)230-WirelessNew Cingular Wireless Pcs
(773)231-LandlineLevel 3 Communications
(773)232-LandlineOnvoy
(773)233-LandlineIllinois Bell Tel Co
(773)234-LandlineBandwidth.Com Clec
(773)235-LandlineIllinois Bell Tel Co
(773)236-WirelessT-Mobile Usa
(773)237-LandlineIllinois Bell Tel Co
(773)238-LandlineIllinois Bell Tel Co
(773)239-LandlineIllinois Bell Tel Co
(773)240-WirelessT-Mobile Usa
(773)241-LandlineIllinois Bell Tel Co
(773)242-LandlineIllinois Bell Tel Co
(773)243-LandlineXo Illinois
(773)244-LandlineIllinois Bell Tel Co
(773)245-LandlineBandwidth.Com Clec
(773)246-WirelessIndiana Paging Network
(773)247-LandlineIllinois Bell Tel Co
(773)248-LandlineIllinois Bell Tel Co
(773)249-LandlineLevel 3 Communications
(773)250-LandlineMcimetro Access Transmission Services
(773)251-WirelessNew Cingular Wireless Pcs
(773)252-LandlineIllinois Bell Tel Co
(773)253-LandlineTeleport Communications America
(773)254-LandlineIllinois Bell Tel Co
(773)255-WirelessNew Cingular Wireless Pcs
(773)256-LandlineIllinois Bell Tel Co
(773)257-LandlineIllinois Bell Tel Co
(773)258-WirelessUsa Mobility Wireless
(773)259-WirelessNew Cingular Wireless Pcs
(773)260-LandlineIllinois Bell Tel Co
(773)261-LandlineIllinois Bell Tel Co
(773)262-LandlineIllinois Bell Tel Co
(773)263-WirelessSprint Spectrum
(773)264-LandlineIllinois Bell Tel Co
(773)265-LandlineIllinois Bell Tel Co
(773)266-WirelessNew Cingular Wireless Pcs
(773)267-LandlineIllinois Bell Tel Co
(773)268-LandlineIllinois Bell Tel Co
(773)269-LandlineAt&T
(773)270-WirelessSprint Spectrum
(773)271-LandlineIllinois Bell Tel Co
(773)272-LandlineMcimetro Access Transmission Services
(773)273-LandlineIllinois Bell Tel Co
(773)274-LandlineIllinois Bell Tel Co
(773)275-LandlineIllinois Bell Tel Co
(773)276-LandlineIllinois Bell Tel Co
(773)277-LandlineIllinois Bell Tel Co
(773)278-LandlineIllinois Bell Tel Co
(773)279-LandlineIllinois Bell Tel Co
(773)280-WirelessT-Mobile Usa
(773)281-LandlineIllinois Bell Tel Co
(773)282-LandlineIllinois Bell Tel Co
(773)283-LandlineIllinois Bell Tel Co
(773)284-LandlineIllinois Bell Tel Co
(773)285-LandlineIllinois Bell Tel Co
(773)286-LandlineIllinois Bell Tel Co
(773)287-LandlineIllinois Bell Tel Co
(773)288-LandlineIllinois Bell Tel Co
(773)289-LandlineMcimetro Access Transmission Services
(773)290-LandlineLevel 3 Communications
(773)291-LandlineIllinois Bell Tel Co
(773)292-LandlineIllinois Bell Tel Co
(773)293-LandlineIllinois Bell Tel Co
(773)294-WirelessNew Cingular Wireless Pcs
(773)295-LandlineMcimetro Access Transmission Services
(773)296-LandlineIllinois Bell Tel Co
(773)297-WirelessSprint Spectrum
(773)298-LandlineIllinois Bell Tel Co
(773)299-LandlineMcimetro Access Transmission Services
(773)301-WirelessSprint Spectrum
(773)302-WirelessSprint Spectrum
(773)303-LandlineMcimetro Access Transmission Services
(773)304-LandlineMcimetro Access Transmission Services
(773)305-LandlineMcimetro Access Transmission Services
(773)306-LandlineAt&T
(773)307-WirelessNew Cingular Wireless Pcs
(773)308-LandlineFirst Communications
(773)309-LandlinePaetec Communications
(773)310-WirelessSprint Spectrum
(773)312-WirelessT-Mobile Usa
(773)313-LandlineMcimetro Access Transmission Services
(773)314-LandlineMcimetro Access Transmission Services
(773)315-WirelessNew Cingular Wireless Pcs
(773)316-WirelessNew Cingular Wireless Pcs
(773)317-WirelessSprint Spectrum
(773)318-WirelessVerizon Wireless
(773)319-WirelessSprint Spectrum
(773)320-WirelessNew Cingular Wireless Pcs
(773)321-LandlineLevel 3 Communications
(773)322-WirelessT-Mobile Usa
(773)323-LandlineAmerican Messaging Services
(773)324-LandlineIllinois Bell Tel Co
(773)325-LandlineIllinois Bell Tel Co
(773)326-LandlineLevel 3 Communications
(773)327-LandlineIllinois Bell Tel Co
(773)328-LandlineFirst Communications
(773)329-LandlineAt&T
(773)330-WirelessNew Cingular Wireless Pcs
(773)331-LandlineMcimetro Access Transmission Services
(773)332-WirelessVerizon Wireless
(773)333-LandlineAmerican Messaging Services
(773)334-LandlineIllinois Bell Tel Co
(773)335-WirelessUsa Mobility Wireless
(773)336-LandlineFirst Communications
(773)337-LandlineMcimetro Access Transmission Services
(773)338-LandlineIllinois Bell Tel Co
(773)339-WirelessVerizon Wireless
(773)340-LandlineYmax Communications
(773)341-LandlineFirst Communications
(773)342-LandlineIllinois Bell Tel Co
(773)343-WirelessVerizon Wireless
(773)344-LandlineMcimetro Access Transmission Services
(773)345-LandlineMcimetro Access Transmission Services
(773)346-LandlineMcimetro Access Transmission Services
(773)347-LandlineMcimetro Access Transmission Services
(773)348-LandlineIllinois Bell Tel Co
(773)349-LandlineMcimetro Access Transmission Services
(773)350-WirelessVerizon Wireless
(773)351-WirelessNew Cingular Wireless Pcs
(773)352-LandlineOnvoy
(773)353-LandlineLevel 3 Communications
(773)354-WirelessSprint Spectrum
(773)355-LandlineOvation Communications Of Illinois
(773)356-LandlineIllinois Bell Tel Co
(773)357-LandlineFirst Communications
(773)358-LandlineMcimetro Access Transmission Services
(773)359-LandlineMcimetro Access Transmission Services
(773)360-LandlineLevel 3 Communications
(773)361-LandlineIllinois Bell Tel Co
(773)362-LandlinePaetec Communications
(773)363-LandlineIllinois Bell Tel Co
(773)364-LandlineOvation Communications Of Illinois
(773)365-LandlineMcimetro Access Transmission Services
(773)366-WirelessT-Mobile Usa
(773)367-WirelessSprint Spectrum
(773)368-WirelessSprint Spectrum
(773)369-WirelessNew Cingular Wireless Pcs
(773)370-WirelessSprint Spectrum
(773)371-LandlineIllinois Bell Tel Co
(773)372-WirelessVerizon Wireless
(773)373-LandlineIllinois Bell Tel Co
(773)374-LandlineIllinois Bell Tel Co
(773)375-LandlineIllinois Bell Tel Co
(773)376-LandlineIllinois Bell Tel Co
(773)377-LandlineTeleport Communications America
(773)378-LandlineIllinois Bell Tel Co
(773)379-LandlineIllinois Bell Tel Co
(773)380-LandlineIllinois Bell Tel Co
(773)381-LandlineIllinois Bell Tel Co
(773)382-LandlineOvation Communications Of Illinois
(773)383-WirelessNew Cingular Wireless Pcs
(773)384-LandlineIllinois Bell Tel Co
(773)385-LandlineIllinois Bell Tel Co
(773)386-WirelessSprint Spectrum
(773)387-WirelessT-Mobile Usa
(773)388-LandlineIllinois Bell Tel Co
(773)389-LandlineMcimetro Access Transmission Services
(773)390-WirelessVerizon Wireless
(773)391-WirelessNew Cingular Wireless Pcs
(773)392-WirelessSprint Spectrum
(773)393-WirelessUsa Mobility Wireless
(773)394-LandlineIllinois Bell Tel Co
(773)395-LandlineIllinois Bell Tel Co
(773)396-LandlineOvation Communications Of Illinois
(773)397-WirelessNew Cingular Wireless Pcs
(773)398-WirelessSprint Spectrum
(773)399-LandlineIllinois Bell Tel Co
(773)400-LandlineAmerican Messaging Services
(773)401-WirelessNew Cingular Wireless Pcs
(773)402-WirelessNew Cingular Wireless Pcs
(773)403-WirelessSprint Spectrum
(773)404-LandlineIllinois Bell Tel Co
(773)405-WirelessVerizon Wireless
(773)406-WirelessSprint Spectrum
(773)407-WirelessSprint Spectrum
(773)408-WirelessSprint Spectrum
(773)409-LandlineAt&T
(773)410-WirelessSprint Spectrum
(773)412-WirelessSprint Spectrum
(773)413-LandlineAt&T
(773)414-WirelessT-Mobile Usa
(773)415-WirelessVerizon Wireless
(773)416-WirelessSprint Spectrum
(773)417-LandlineComcast Ip Phone
(773)418-WirelessSprint Spectrum
(773)419-WirelessSprint Spectrum
(773)420-LandlineTeleport Communications America
(773)421-WirelessVerizon Wireless
(773)422-WirelessVerizon Wireless
(773)423-LandlineMcimetro Access Transmission Services
(773)424-LandlineTeleport Communications America
(773)425-WirelessSprint Spectrum
(773)426-WirelessSprint Spectrum
(773)427-LandlineIllinois Bell Tel Co
(773)428-WirelessNew Cingular Wireless Pcs
(773)429-LandlineIllinois Bell Tel Co
(773)430-WirelessSprint Spectrum
(773)431-WirelessNew Cingular Wireless Pcs
(773)432-LandlineFirst Communications
(773)433-WirelessSprint Spectrum
(773)434-LandlineIllinois Bell Tel Co
(773)435-LandlineXo Illinois
(773)436-LandlineIllinois Bell Tel Co
(773)437-LandlineTeleport Communications America
(773)438-WirelessUsa Mobility Wireless
(773)439-LandlineRcn Telecom Services Of Illinios
(773)440-WirelessSprint Spectrum
(773)441-WirelessNew Cingular Wireless Pcs
(773)442-LandlineMcimetro Access Transmission Services
(773)443-WirelessSprint Spectrum
(773)444-LandlineIllinois Bell Tel Co
(773)445-LandlineIllinois Bell Tel Co
(773)446-LandlineLevel 3 Communications
(773)447-WirelessSprint Spectrum
(773)448-WirelessUsa Mobility Wireless
(773)449-LandlineRcn Telecom Services Of Illinios
(773)450-WirelessNew Cingular Wireless Pcs
(773)451-LandlineIllinois Bell Tel Co
(773)452-WirelessVerizon Wireless
(773)453-LandlineXo Illinois
(773)454-WirelessSprint Spectrum
(773)455-LandlineMcimetro Access Transmission Services
(773)456-WirelessNew Cingular Wireless Pcs
(773)457-WirelessSprint Spectrum
(773)458-LandlineMcimetro Access Transmission Services
(773)459-WirelessSprint Spectrum
(773)460-WirelessUsa Mobility Wireless
(773)461-WirelessT-Mobile Usa
(773)462-LandlineIllinois Bell Tel Co
(773)463-LandlineIllinois Bell Tel Co
(773)464-WirelessUsa Mobility Wireless
(773)465-LandlineIllinois Bell Tel Co
(773)466-LandlineXo Illinois
(773)467-LandlineIllinois Bell Tel Co
(773)468-LandlineIllinois Bell Tel Co
(773)469-WirelessSprint Spectrum
(773)470-LandlineXo Illinois
(773)471-LandlineIllinois Bell Tel Co
(773)472-LandlineIllinois Bell Tel Co
(773)473-LandlineIllinois Bell Tel Co
(773)474-LandlineOvation Communications Of Illinois
(773)475-LandlineTeleport Communications America
(773)476-LandlineIllinois Bell Tel Co
(773)477-LandlineIllinois Bell Tel Co
(773)478-LandlineIllinois Bell Tel Co
(773)479-LandlineIllinois Bell Tel Co
(773)480-WirelessNew Cingular Wireless Pcs
(773)481-LandlineIllinois Bell Tel Co
(773)482-LandlineOvation Communications Of Illinois
(773)483-LandlineIllinois Bell Tel Co
(773)484-WirelessVerizon Wireless
(773)485-WirelessVerizon Wireless
(773)486-LandlineIllinois Bell Tel Co
(773)487-LandlineIllinois Bell Tel Co
(773)488-LandlineIllinois Bell Tel Co
(773)489-LandlineIllinois Bell Tel Co
(773)490-WirelessNew Cingular Wireless Pcs
(773)491-WirelessSprint Spectrum
(773)492-LandlineBandwidth.Com Clec
(773)493-LandlineIllinois Bell Tel Co
(773)494-WirelessSprint Spectrum
(773)495-WirelessSprint Spectrum
(773)496-LandlineOvation Communications Of Illinois
(773)497-WirelessVerizon Wireless
(773)498-LandlineTeleport Communications America
(773)499-WirelessSprint Spectrum
(773)501-WirelessT-Mobile Usa
(773)502-WirelessVerizon Wireless
(773)503-WirelessT-Mobile Usa
(773)504-WirelessNew Cingular Wireless Pcs
(773)505-WirelessVerizon Wireless
(773)506-LandlineIllinois Bell Tel Co
(773)507-WirelessSprint Spectrum
(773)508-LandlineIllinois Bell Tel Co
(773)509-LandlineIllinois Bell Tel Co
(773)510-WirelessT-Mobile Usa
(773)512-WirelessSprint Spectrum
(773)513-WirelessNew Cingular Wireless Pcs
(773)514-LandlineAmerican Messaging Services
(773)515-WirelessVerizon Wireless
(773)516-LandlinePeerless Network Of Illinois
(773)517-WirelessT-Mobile Usa
(773)518-WirelessVerizon Wireless
(773)519-WirelessVerizon Wireless
(773)520-WirelessVerizon Wireless
(773)521-LandlineIllinois Bell Tel Co
(773)522-LandlineIllinois Bell Tel Co
(773)523-LandlineIllinois Bell Tel Co
(773)524-LandlineLevel 3 Communications
(773)525-LandlineIllinois Bell Tel Co
(773)526-LandlineOvation Communications Of Illinois
(773)527-LandlineLevel 3 Communications
(773)528-LandlineIllinois Bell Tel Co
(773)529-LandlineIllinois Bell Tel Co
(773)530-LandlineComcast Ip Phone
(773)531-WirelessSprint Spectrum
(773)532-WirelessNew Cingular Wireless Pcs
(773)533-LandlineIllinois Bell Tel Co
(773)534-LandlineIllinois Bell Tel Co
(773)535-LandlineIllinois Bell Tel Co
(773)536-LandlineIllinois Bell Tel Co
(773)537-LandlineFirst Communications
(773)538-LandlineIllinois Bell Tel Co
(773)539-LandlineIllinois Bell Tel Co
(773)540-WirelessT-Mobile Usa
(773)541-LandlineGlobal Crossing Local Services
(773)542-LandlineIllinois Bell Tel Co
(773)543-WirelessT-Mobile Usa
(773)544-WirelessSprint Spectrum
(773)545-LandlineIllinois Bell Tel Co
(773)546-LandlineIllinois Bell Tel Co
(773)547-WirelessNew Cingular Wireless Pcs
(773)548-LandlineIllinois Bell Tel Co
(773)549-LandlineIllinois Bell Tel Co
(773)550-WirelessVerizon Wireless
(773)551-WirelessNew Cingular Wireless Pcs
(773)552-WirelessSprint Spectrum
(773)553-LandlineIllinois Bell Tel Co
(773)554-WirelessSprint Spectrum
(773)556-WirelessSprint Spectrum
(773)557-LandlineOvation Communications Of Illinois
(773)558-WirelessVerizon Wireless
(773)559-WirelessSprint Spectrum
(773)560-LandlineTeleport Communications America
(773)561-LandlineIllinois Bell Tel Co
(773)562-WirelessSprint Spectrum
(773)563-WirelessSprint Spectrum
(773)564-LandlineTeleport Communications America
(773)565-LandlineFirst Communications
(773)566-WirelessUsa Mobility Wireless
(773)567-WirelessSprint Spectrum
(773)568-LandlineIllinois Bell Tel Co
(773)569-LandlineIllinois Bell Tel Co
(773)570-LandlineLevel 3 Communications
(773)571-WirelessVerizon Wireless
(773)572-LandlineLevel 3 Communications
(773)573-LandlineXo Illinois
(773)574-WirelessT-Mobile Usa
(773)575-WirelessNew Cingular Wireless Pcs
(773)576-WirelessNew Cingular Wireless Pcs
(773)577-LandlineOvation Communications Of Illinois
(773)578-WirelessNew Cingular Wireless Pcs
(773)579-LandlineIllinois Bell Tel Co
(773)580-WirelessNew Cingular Wireless Pcs
(773)581-LandlineIllinois Bell Tel Co
(773)582-LandlineIllinois Bell Tel Co
(773)583-LandlineIllinois Bell Tel Co
(773)584-LandlineMcimetro Access Transmission Services
(773)585-LandlineIllinois Bell Tel Co
(773)586-LandlineIllinois Bell Tel Co
(773)587-WirelessSprint Spectrum
(773)588-LandlineIllinois Bell Tel Co
(773)589-LandlineIllinois Bell Tel Co
(773)590-WirelessVerizon Wireless
(773)591-LandlineIllinois Bell Tel Co
(773)592-WirelessT-Mobile Usa
(773)593-WirelessSprint Spectrum
(773)594-LandlineIllinois Bell Tel Co
(773)595-WirelessT-Mobile Usa
(773)596-LandlineOvation Communications Of Illinois
(773)597-LandlineFirst Communications
(773)598-LandlineMcimetro Access Transmission Services
(773)599-LandlineYmax Communications
(773)600-WirelessT-Mobile Usa
(773)601-LandlineIllinois Bell Tel Co
(773)602-LandlineIllinois Bell Tel Co
(773)603-WirelessT-Mobile Usa
(773)604-LandlineIllinois Bell Tel Co
(773)605-LandlineFirst Communications
(773)606-WirelessSprint Spectrum
(773)607-WirelessNew Cingular Wireless Pcs
(773)608-WirelessNew Cingular Wireless Pcs
(773)609-LandlineYmax Communications
(773)610-WirelessNew Cingular Wireless Pcs
(773)612-WirelessNew Cingular Wireless Pcs
(773)613-WirelessNew Cingular Wireless Pcs
(773)614-WirelessT-Mobile Usa
(773)615-WirelessSprint Spectrum
(773)616-WirelessSprint Spectrum
(773)617-WirelessSprint Spectrum
(773)618-WirelessNew Cingular Wireless Pcs
(773)619-WirelessSprint Spectrum
(773)620-WirelessNew Cingular Wireless Pcs
(773)621-WirelessSprint Spectrum
(773)622-LandlineIllinois Bell Tel Co
(773)623-WirelessNew Cingular Wireless Pcs
(773)624-LandlineIllinois Bell Tel Co
(773)625-LandlineIllinois Bell Tel Co
(773)626-LandlineIllinois Bell Tel Co
(773)627-LandlineOvation Communications Of Illinois
(773)628-LandlineTeleport Communications America
(773)629-WirelessT-Mobile Usa
(773)630-WirelessNew Cingular Wireless Pcs
(773)631-LandlineIllinois Bell Tel Co
(773)632-LandlineMcimetro Access Transmission Services
(773)633-WirelessVerizon Wireless
(773)634-LandlineMcimetro Access Transmission Services
(773)635-LandlineGlobal Crossing Local Services
(773)636-WirelessVerizon Wireless
(773)637-LandlineIllinois Bell Tel Co
(773)638-LandlineIllinois Bell Tel Co
(773)639-WirelessSprint Spectrum
(773)640-LandlineOvation Communications Of Illinois
(773)641-WirelessSprint Spectrum
(773)642-WirelessSprint Spectrum
(773)643-LandlineIllinois Bell Tel Co
(773)644-LandlineTeleport Communications America
(773)645-LandlineIllinois Bell Tel Co
(773)646-LandlineIllinois Bell Tel Co
(773)647-WirelessSprint Spectrum
(773)648-LandlineOvation Communications Of Illinois
(773)649-LandlineOvation Communications Of Illinois
(773)650-LandlineIllinois Bell Tel Co
(773)651-LandlineIllinois Bell Tel Co
(773)652-WirelessUsa Mobility Wireless
(773)653-LandlineOvation Communications Of Illinois
(773)654-LandlineOvation Communications Of Illinois
(773)655-WirelessSprint Spectrum
(773)656-WirelessT-Mobile Usa
(773)657-WirelessSprint Spectrum
(773)658-WirelessNew Cingular Wireless Pcs
(773)659-WirelessNew Cingular Wireless Pcs
(773)660-LandlineIllinois Bell Tel Co
(773)661-LandlineOvation Communications Of Illinois
(773)662-WirelessVerizon Wireless
(773)663-WirelessSprint Spectrum
(773)664-LandlineOvation Communications Of Illinois
(773)665-LandlineIllinois Bell Tel Co
(773)666-LandlineBandwidth.Com Clec
(773)667-LandlineIllinois Bell Tel Co
(773)668-LandlineLevel 3 Communications
(773)669-LandlineBandwidth.Com Clec
(773)670-WirelessUsa Mobility Wireless
(773)671-WirelessSprint Spectrum
(773)672-WirelessT-Mobile Usa
(773)673-LandlineOvation Communications Of Illinois
(773)674-LandlineIllinois Bell Tel Co
(773)675-WirelessVerizon Wireless
(773)676-LandlineTeleport Communications America
(773)677-WirelessNew Cingular Wireless Pcs
(773)678-WirelessSprint Spectrum
(773)679-WirelessT-Mobile Usa
(773)680-WirelessNew Cingular Wireless Pcs
(773)681-LandlineMcimetro Access Transmission Services
(773)682-WirelessVerizon Wireless
(773)683-WirelessNew Cingular Wireless Pcs
(773)684-LandlineIllinois Bell Tel Co
(773)685-LandlineIllinois Bell Tel Co
(773)686-LandlineIllinois Bell Tel Co
(773)687-LandlineTeleport Communications America
(773)688-LandlineRcn Telecom Services Of Illinios
(773)689-WirelessVerizon Wireless
(773)690-WirelessT-Mobile Usa
(773)691-WirelessT-Mobile Usa
(773)692-LandlineOnvoy
(773)693-LandlineIllinois Bell Tel Co
(773)694-LandlineIllinois Bell Tel Co
(773)695-LandlineIllinois Bell Tel Co
(773)696-LandlineOvation Communications Of Illinois
(773)697-LandlineOvation Communications Of Illinois
(773)698-WirelessT-Mobile Usa
(773)699-WirelessSprint Spectrum
(773)701-WirelessT-Mobile Usa
(773)702-LandlineIllinois Bell Tel Co
(773)703-WirelessNew Cingular Wireless Pcs
(773)704-WirelessT-Mobile Usa
(773)705-LandlineFirst Communications
(773)706-WirelessVerizon Wireless
(773)707-WirelessNew Cingular Wireless Pcs
(773)708-WirelessNew Cingular Wireless Pcs
(773)709-WirelessNew Cingular Wireless Pcs
(773)710-WirelessNew Cingular Wireless Pcs
(773)712-WirelessNew Cingular Wireless Pcs
(773)713-LandlineAmerican Messaging Services
(773)714-LandlineIllinois Bell Tel Co
(773)715-WirelessT-Mobile Usa
(773)716-WirelessSprint Spectrum
(773)717-WirelessVerizon Wireless
(773)718-WirelessVerizon Wireless
(773)719-WirelessSprint Spectrum
(773)720-WirelessVerizon Wireless
(773)721-LandlineIllinois Bell Tel Co
(773)722-LandlineIllinois Bell Tel Co
(773)723-LandlineIllinois Bell Tel Co
(773)724-WirelessVerizon Wireless
(773)725-LandlineIllinois Bell Tel Co
(773)726-LandlineOvation Communications Of Illinois
(773)727-WirelessT-Mobile Usa
(773)728-LandlineIllinois Bell Tel Co
(773)729-LandlineOvation Communications Of Illinois
(773)730-LandlineIllinois Bell Tel Co
(773)731-LandlineIllinois Bell Tel Co
(773)732-WirelessT-Mobile Usa
(773)733-LandlineOvation Communications Of Illinois
(773)734-LandlineIllinois Bell Tel Co
(773)735-LandlineIllinois Bell Tel Co
(773)736-LandlineIllinois Bell Tel Co
(773)737-LandlineIllinois Bell Tel Co
(773)738-WirelessSprint Spectrum
(773)739-WirelessT-Mobile Usa
(773)740-LandlineAmerican Messaging Services
(773)741-LandlineIllinois Bell Tel Co
(773)742-WirelessT-Mobile Usa
(773)743-LandlineIllinois Bell Tel Co
(773)744-WirelessT-Mobile Usa
(773)745-LandlineIllinois Bell Tel Co
(773)746-WirelessSprint Spectrum
(773)747-WirelessT-Mobile Usa
(773)748-WirelessIndiana Paging Network
(773)749-WirelessSprint Spectrum
(773)750-WirelessNew Cingular Wireless Pcs
(773)751-LandlineXo Illinois
(773)752-LandlineIllinois Bell Tel Co
(773)753-LandlineIllinois Bell Tel Co
(773)754-LandlineComcast Ip Phone
(773)755-LandlineIllinois Bell Tel Co
(773)756-LandlineMcimetro Access Transmission Services
(773)757-LandlineTeleport Communications America
(773)758-WirelessVerizon Wireless
(773)759-WirelessSprint Spectrum
(773)760-WirelessVerizon Wireless
(773)761-LandlineIllinois Bell Tel Co
(773)762-LandlineIllinois Bell Tel Co
(773)763-LandlineIllinois Bell Tel Co
(773)764-LandlineIllinois Bell Tel Co
(773)765-LandlineTeleport Communications America
(773)766-WirelessVerizon Wireless
(773)767-LandlineIllinois Bell Tel Co
(773)768-LandlineIllinois Bell Tel Co
(773)769-LandlineIllinois Bell Tel Co
(773)770-LandlineOvation Communications Of Illinois
(773)771-WirelessVerizon Wireless
(773)772-LandlineIllinois Bell Tel Co
(773)774-LandlineIllinois Bell Tel Co
(773)775-LandlineIllinois Bell Tel Co
(773)776-LandlineIllinois Bell Tel Co
(773)777-LandlineIllinois Bell Tel Co
(773)778-LandlineIllinois Bell Tel Co
(773)779-LandlineIllinois Bell Tel Co
(773)780-WirelessT-Mobile Usa
(773)781-LandlineAmerican Messaging Services
(773)782-LandlineIllinois Bell Tel Co
(773)783-LandlineIllinois Bell Tel Co
(773)784-LandlineIllinois Bell Tel Co
(773)785-LandlineIllinois Bell Tel Co
(773)786-LandlineOvation Communications Of Illinois
(773)787-LandlineXo Illinois
(773)788-LandlineIllinois Bell Tel Co
(773)789-LandlineRcn Telecom Services Of Illinios
(773)790-LandlineLevel 3 Communications
(773)791-WirelessNew Cingular Wireless Pcs
(773)792-LandlineIllinois Bell Tel Co
(773)793-WirelessSprint Spectrum
(773)794-LandlineIllinois Bell Tel Co
(773)795-LandlineIllinois Bell Tel Co
(773)796-LandlineLevel 3 Communications
(773)797-LandlineLevel 3 Communications
(773)798-WirelessVerizon Wireless
(773)799-LandlineMcimetro Access Transmission Services
(773)800-LandlineLevel 3 Communications
(773)801-LandlineIllinois Bell Tel Co
(773)802-WirelessVerizon Wireless
(773)803-WirelessSprint Spectrum
(773)804-LandlineIllinois Bell Tel Co
(773)805-WirelessVerizon Wireless
(773)806-WirelessNew Cingular Wireless Pcs
(773)807-WirelessT-Mobile Usa
(773)808-WirelessT-Mobile Usa
(773)809-WirelessT-Mobile Usa
(773)810-WirelessNew Cingular Wireless Pcs
(773)812-WirelessNew Cingular Wireless Pcs
(773)813-WirelessNew Cingular Wireless Pcs
(773)814-WirelessT-Mobile Usa
(773)815-WirelessNew Cingular Wireless Pcs
(773)816-WirelessT-Mobile Usa
(773)817-WirelessT-Mobile Usa
(773)818-WirelessT-Mobile Usa
(773)819-LandlineOnvoy
(773)820-WirelessNew Cingular Wireless Pcs
(773)821-LandlineIllinois Bell Tel Co
(773)822-WirelessT-Mobile Usa
(773)823-LandlineAt&T
(773)824-LandlineTeleport Communications America
(773)825-LandlineIllinois Bell Tel Co
(773)826-LandlineIllinois Bell Tel Co
(773)827-WirelessT-Mobile Usa
(773)828-LandlineLevel 3 Communications
(773)829-LandlineLevel 3 Communications
(773)830-LandlineXo Illinois
(773)831-LandlineLevel 3 Communications
(773)832-LandlineIllinois Bell Tel Co
(773)833-WirelessVerizon Wireless
(773)834-LandlineIllinois Bell Tel Co
(773)835-WirelessVerizon Wireless
(773)836-LandlineIllinois Bell Tel Co
(773)837-WirelessT-Mobile Usa
(773)838-LandlineIllinois Bell Tel Co
(773)839-LandlineOnvoy
(773)840-LandlineOvation Communications Of Illinois
(773)841-WirelessNew Cingular Wireless Pcs
(773)842-WirelessSprint Spectrum
(773)843-LandlineIllinois Bell Tel Co
(773)844-WirelessNew Cingular Wireless Pcs
(773)845-LandlineAmerican Messaging Services
(773)846-LandlineIllinois Bell Tel Co
(773)847-LandlineIllinois Bell Tel Co
(773)848-WirelessVerizon Wireless
(773)849-WirelessVerizon Wireless
(773)850-WirelessVerizon Wireless
(773)851-WirelessSprint Spectrum
(773)852-WirelessNew Cingular Wireless Pcs
(773)853-WirelessSprint Spectrum
(773)854-LandlineIllinois Bell Tel Co
(773)855-LandlineRcn Telecom Services Of Illinios
(773)856-LandlineRcn Telecom Services Of Illinios
(773)857-LandlineRcn Telecom Services Of Illinios
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(773)859-WirelessVerizon Wireless
(773)860-WirelessNew Cingular Wireless Pcs
(773)861-LandlineFirst Communications
(773)862-LandlineIllinois Bell Tel Co
(773)863-LandlineIllinois Bell Tel Co
(773)864-LandlineIllinois Bell Tel Co
(773)865-WirelessT-Mobile Usa
(773)866-LandlineIllinois Bell Tel Co
(773)867-LandlineIllinois Bell Tel Co
(773)868-LandlineIllinois Bell Tel Co
(773)869-LandlineIllinois Bell Tel Co
(773)870-WirelessNew Cingular Wireless Pcs
(773)871-LandlineIllinois Bell Tel Co
(773)873-LandlineIllinois Bell Tel Co
(773)874-LandlineIllinois Bell Tel Co
(773)875-WirelessT-Mobile Usa
(773)876-WirelessSprint Spectrum
(773)877-WirelessT-Mobile Usa
(773)878-LandlineIllinois Bell Tel Co
(773)879-WirelessSprint Spectrum
(773)880-LandlineIllinois Bell Tel Co
(773)881-LandlineIllinois Bell Tel Co
(773)882-WirelessVerizon Wireless
(773)883-LandlineIllinois Bell Tel Co
(773)884-LandlineIllinois Bell Tel Co
(773)885-WirelessSprint Spectrum
(773)886-WirelessT-Mobile Usa
(773)887-LandlineMcimetro Access Transmission Services
(773)888-LandlineBandwidth.Com Clec
(773)889-LandlineIllinois Bell Tel Co
(773)890-LandlineIllinois Bell Tel Co
(773)891-LandlineComcast Ip Phone
(773)892-LandlineIllinois Bell Tel Co
(773)893-LandlineMcimetro Access Transmission Services
(773)894-LandlineIllinois Bell Tel Co
(773)895-WirelessT-Mobile Usa
(773)896-LandlineMcimetro Access Transmission Services
(773)897-LandlinePeerless Network Of Illinois
(773)898-WirelessVerizon Wireless
(773)899-WirelessVerizon Wireless
(773)900-LandlineFractel
(773)901-WirelessNew Cingular Wireless Pcs
(773)902-LandlineGlobal Crossing Local Services
(773)903-LandlineAmerican Messaging Services
(773)904-LandlineLevel 3 Communications
(773)905-LandlineGlobal Crossing Local Services
(773)906-LandlineGlobal Crossing Local Services
(773)907-LandlineIllinois Bell Tel Co
(773)908-WirelessSprint Spectrum
(773)909-WirelessVerizon Wireless
(773)910-WirelessNew Cingular Wireless Pcs
(773)912-LandlineGlobal Crossing Local Services
(773)913-LandlineLevel 3 Communications
(773)914-WirelessVerizon Wireless
(773)915-LandlineGlobal Crossing Local Services
(773)916-WirelessT-Mobile Usa
(773)917-LandlineMcimetro Access Transmission Services
(773)918-LandlineIllinois Bell Tel Co
(773)919-WirelessVerizon Wireless
(773)920-LandlineGlobal Crossing Local Services
(773)921-LandlineIllinois Bell Tel Co
(773)922-LandlineGlobal Crossing Local Services
(773)923-WirelessNew Cingular Wireless Pcs
(773)924-LandlineIllinois Bell Tel Co
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(773)926-LandlineIllinois Bell Tel Co
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(773)928-LandlineIllinois Bell Tel Co
(773)929-LandlineIllinois Bell Tel Co
(773)930-WirelessSprint Spectrum
(773)931-WirelessT-Mobile Usa
(773)932-LandlineGlobal Crossing Local Services
(773)933-LandlineIllinois Bell Tel Co
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(773)935-LandlineIllinois Bell Tel Co
(773)936-WirelessT-Mobile Usa
(773)937-LandlineRcn Telecom Services Of Illinios
(773)938-LandlineGlobal Crossing Local Services
(773)939-WirelessT-Mobile Usa
(773)940-LandlineComcast Ip Phone
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(773)942-LandlineGlobal Crossing Local Services
(773)943-WirelessT-Mobile Usa
(773)944-LandlineRcn Telecom Services Of Illinios
(773)945-LandlinePeerless Network Of Illinois
(773)946-LandlineLevel 3 Communications
(773)947-LandlineIllinois Bell Tel Co
(773)948-LandlineMcimetro Access Transmission Services
(773)949-WirelessSprint Spectrum
(773)951-WirelessVerizon Wireless
(773)952-WirelessT-Mobile Usa
(773)953-WirelessSprint Spectrum
(773)954-WirelessT-Mobile Usa
(773)955-LandlineIllinois Bell Tel Co
(773)956-WirelessT-Mobile Usa
(773)957-LandlineOvation Communications Of Illinois
(773)960-WirelessSprint Spectrum
(773)961-LandlineIllinois Bell Tel Co
(773)962-LandlineIllinois Bell Tel Co
(773)963-WirelessSprint Spectrum
(773)964-WirelessT-Mobile Usa
(773)965-WirelessVerizon Wireless
(773)966-LandlineLevel 3 Communications
(773)967-LandlineMcimetro Access Transmission Services
(773)968-WirelessT-Mobile Usa
(773)969-WirelessT-Mobile Usa
(773)970-WirelessNew Cingular Wireless Pcs
(773)971-WirelessT-Mobile Usa
(773)972-WirelessNew Cingular Wireless Pcs
(773)973-LandlineIllinois Bell Tel Co
(773)974-LandlineOvation Communications Of Illinois
(773)975-LandlineIllinois Bell Tel Co
(773)977-LandlineOvation Communications Of Illinois
(773)978-LandlineIllinois Bell Tel Co
(773)979-WirelessSprint Spectrum
(773)980-LandlineIllinois Bell Tel Co
(773)981-LandlineMcimetro Access Transmission Services
(773)982-WirelessT-Mobile Usa
(773)983-WirelessT-Mobile Usa
(773)984-WirelessSprint Spectrum
(773)985-LandlineMcimetro Access Transmission Services
(773)986-WirelessT-Mobile Usa
(773)987-LandlineFirst Communications
(773)988-WirelessT-Mobile Usa
(773)989-LandlineIllinois Bell Tel Co
(773)990-LandlineIllinois Bell Tel Co
(773)991-WirelessSprint Spectrum
(773)992-LandlineIllinois Bell Tel Co
(773)993-WirelessSprint Spectrum
(773)994-LandlineIllinois Bell Tel Co
(773)995-LandlineIllinois Bell Tel Co
(773)996-WirelessT-Mobile Usa
(773)997-WirelessT-Mobile Usa
(773)998-WirelessNew Cingular Wireless Pcs
(773)999-WirelessNew Cingular Wireless Pcs

Frequently Asked Questions about the 773 Area Code

Who called me from a 773 number?

42% of its assigned prefixes are wireless. Largest holders: Illinois Bell Tel Co, Sprint Spectrum, and New Cingular Wireless Pcs.

Is 773 a scam area code?

Carriers hold 78% of its possible prefixes.

Why do I keep getting calls from the 773 area code?

Complaints rose 12% on the prior period.

Should I answer an unknown 773 number?

60% of its FTC complaints were robocalls. Its most-reported specific subject was "Dropped call or no message", at 12%.

How do I block calls from the 773 area code?

Blocking 773 still lets 872 numbers through.

Where is area code 773?

773 covers 1 city and 2,367,030 residents in Cook County, Illinois.

When did area code 773 go into service?

773 went into service on October 12, 1996. It was split from 312. 872 now shares its territory.

Is 773 a real area code?

Yes: 24 carriers hold its prefixes, serving Chicago in Cook County.

What timezone is the 773 area code in?

773 is on Central Time (CT).

How do I call a 773 number from abroad?

Dial +1 773, then the number.

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