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858 Area CodeSan Diego, CA

Area code 858 covers San Diego and nearby communities in California, in the Pacific Time (PT) zone, home to about 746,764 people across 34 cities. It was added in 1999 as an overlay of 619, so the same region uses both codes and every local call needs all ten digits.

Overview

Major City
San Diego
State
California (CA)
Timezone
Pacific Time (PT)
Current Time
–:––
Overlay
Yes – shares area with 619

Nearby Area Codes

Where is area code 858?

Area code 858 serves part of San Diego, CA and the surrounding areas. It has a single overlay (619) that serves the same area.

Overview of the 858 Area Code

What is the 858 area code?

The 858 area code serves San Diego, California, alongside other established area codes. When you see a 858 number, it indicates a local number within this geographic area.

Why was area code 858 created?

Area code 858 went into service on June 12, 1999, as an overlay of 619. An overlay adds a second code to the same territory instead of splitting it: existing 619 numbers kept their digits, new lines began receiving 858 numbers, and local calls in the region require all ten digits.

Geographic Coverage of the 858 Area Code

The 858 area code serves San Diego and surrounding areas in California. It operates within the Pacific Time (PT) time zone. It complements the coverage of area code 619. This area code covers several key cities, including:

  • San Diego
  • Chula Vista
  • El Cajon
  • La Mesa
  • Santee
  • National City

Got a call from an 858 number? It came from San Diego, CA. Since 858 overlays with 619, every local call in the region needs all ten digits to land on the right line. Of the listed cities' population, San Diego accounts for about 60.5%; the rest is split across 33 smaller cities.

San Diego Area Codes Overview

San Diego is served by multiple area codes, reflecting its telecommunications needs. The 858 area code operates alongside 619. Here are the area codes serving this region:

619858

The introduction of the 858 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.

What cities does area code 858 cover?

CityStatePopulationPopulation in 858% of listed-city population% of City
San DiegoCA1,404,452652,07460.5%46.4%
Chula VistaCA278,546012.0%0.0%
El CajonCA103,29104.5%0.0%
La MesaCA60,76702.6%0.0%
SanteeCA59,10402.5%0.0%
National CityCA58,46002.5%0.0%
PowayCA49,43549,4352.1%100.0%
La PresaCA34,16901.5%0.0%
Spring ValleyCA28,20501.2%0.0%
Lemon GroveCA27,86701.2%0.0%
Imperial BeachCA25,56801.1%0.0%
Rancho San DiegoCA21,20800.9%0.0%
LakesideCA20,64800.9%0.0%
Winter GardensCA20,63100.9%0.0%
Casa de Oro-Mount HelixCA18,76200.8%0.0%
CoronadoCA18,03100.8%0.0%
BostoniaCA15,37900.7%0.0%
AlpineCA14,23600.6%0.0%
Solana BeachCA12,86812,8680.6%100.0%
BonitaCA12,53800.5%0.0%
JamulCA6,16300.3%0.0%
Eucalyptus HillsCA5,31300.2%0.0%
Del MarCA3,9023,9020.2%100.0%
Harbison CanyonCA3,84100.2%0.0%
Fairbanks RanchCA3,1483,1480.1%100.0%
Rancho Santa FeCA3,1173,1170.1%100.0%
Granite HillsCA3,03500.1%0.0%
CampoCA2,68400.1%0.0%
CrestCA2,59300.1%0.0%
Pine ValleyCA1,51000.1%0.0%
DescansoCA1,42300.1%0.0%
PotreroCA65600.0%0.0%
JacumbaCA56100.0%0.0%
BoulevardCA31500.0%0.0%

City population is shown in full. The share of each city inside 858 is measured from Census tract centroids, not estimated from a rate-center match – so a city split between two codes appears on both, at the fraction each one actually holds. The “% of listed-city population” column uses the full populations of the cities listed here.

What counties does area code 858 cover?

746,764 residents across 1 county, counted inside the 858 boundary — a county split between codes contributes only its part.

CountyStatePopulation in 858% of area-code footprint% of County
San Diego CountyCA746,764100%23%

Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.

Has area code 858 been reported for unwanted calls?

Yes – 1,438 unwanted-call complaints were reported to the FTC for numbers showing a 858 area code (May 29 – Aug 14, 2026).

  • 64% robocalls
  • ↓ 23% vs prior period

Most-reported subjects

  • Other39%558
  • Reducing your debt (credit cards, mortgage, student loans)23%325
  • Dropped call or no message11%159

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. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-08-17.

Which prefixes and exchanges belong to area code 858?

51% assigned to a telco

  • 79% Landline
  • 21% Wireless
  • 0% Unknown
PrefixUsageCarrier
(858)200-LandlineTpx Communications
(858)201-LandlineLevel 3 Communications
(858)202-LandlinePacific Bell
(858)203-LandlineOnvoy
(858)204-WirelessVerizon Wireless
(858)205-WirelessT-Mobile Usa
(858)206-LandlineYmax Communications
(858)207-LandlineTeleport Communications America
(858)208-WirelessNew Cingular Wireless Pcs
(858)209-WirelessT-Mobile Usa
(858)210-WirelessVerizon Wireless
(858)212-WirelessSprint Spectrum
(858)213-WirelessSprint Spectrum
(858)214-WirelessT-Mobile Usa
(858)215-LandlinePacific Bell
(858)216-LandlineTpx Communications
(858)217-LandlineTpx Communications
(858)218-LandlineTpx Communications
(858)219-LandlineAmerican Messaging Services
(858)220-WirelessSprint Spectrum
(858)221-LandlineLocal Access Services
(858)222-LandlineYmax Communications
(858)223-LandlineOnvoy
(858)224-LandlineOnvoy
(858)225-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)226-WirelessVerizon Wireless
(858)227-LandlineXo California
(858)228-LandlineXo California
(858)229-WirelessVerizon Wireless
(858)230-LandlineAt&T
(858)231-WirelessT-Mobile Usa
(858)232-WirelessNew Cingular Wireless Pcs
(858)233-LandlineNorth County Communication
(858)234-LandlineNorth County Communication
(858)235-LandlinePaetec Communications
(858)236-LandlineNorth County Communication
(858)237-LandlineNorth County Communication
(858)238-WirelessNew Cingular Wireless Pcs
(858)239-LandlineOnvoy
(858)240-LandlineLevel 3 Telecom Of California
(858)241-WirelessT-Mobile Usa
(858)242-WirelessNew Cingular Wireless Pcs
(858)243-WirelessVerizon Wireless
(858)244-LandlineXo California
(858)245-WirelessVerizon Wireless
(858)246-LandlineLevel 3 Telecom Of California
(858)247-LandlineTerra Nova Telecom
(858)248-WirelessVerizon Wireless
(858)249-WirelessNew Cingular Wireless Pcs
(858)250-LandlineWide Voice
(858)251-LandlinePeerless Network Of California
(858)252-WirelessT-Mobile Usa
(858)253-WirelessVerizon Wireless
(858)254-WirelessSprint Spectrum
(858)255-LandlineTeleport Communications America
(858)256-LandlineComcast Ip Phone
(858)257-LandlineLevel 3 Communications
(858)258-LandlineLevel 3 Communications
(858)259-LandlinePacific Bell
(858)260-WirelessT-Mobile Usa
(858)261-WirelessT-Mobile Usa
(858)262-WirelessT-Mobile Usa
(858)263-LandlineTime Warner Cab
(858)264-LandlineOnvoy
(858)265-WirelessNew Cingular Wireless Pcs
(858)266-LandlinePacific Bell
(858)267-WirelessT-Mobile Usa
(858)268-LandlinePacific Bell
(858)269-LandlinePacific Bell
(858)270-LandlinePacific Bell
(858)271-LandlinePacific Bell
(858)272-LandlinePacific Bell
(858)273-LandlinePacific Bell
(858)274-LandlinePacific Bell
(858)275-WirelessVerizon Wireless
(858)276-WirelessNew Cingular Wireless Pcs
(858)277-LandlinePacific Bell
(858)278-LandlinePacific Bell
(858)279-LandlinePacific Bell
(858)280-LandlineAt&T
(858)281-LandlineLevel 3 Communications
(858)282-WirelessNew Cingular Wireless Pcs
(858)283-LandlineOnvoy
(858)284-LandlineBandwidth.Com Clec
(858)285-LandlineComcast Ip Phone
(858)286-LandlineVonage America
(858)287-WirelessVerizon Wireless
(858)288-WirelessVerizon Wireless
(858)289-WirelessNew Cingular Wireless Pcs
(858)290-WirelessT-Mobile Usa
(858)291-WirelessNew Cingular Wireless Pcs
(858)292-LandlinePacific Bell
(858)293-LandlineTpx Communications
(858)294-LandlineBandwidth.Com Clec
(858)295-WirelessNew Cingular Wireless Pcs
(858)296-LandlineComcast Ip Phone
(858)297-LandlineNorth County Communication
(858)298-WirelessNew Cingular Wireless Pcs
(858)299-LandlineComcast Ip Phone
(858)300-LandlineTpx Communications
(858)301-LandlineVonage America
(858)302-LandlineComcast Ip Phone
(858)303-LandlineComcast Ip Phone
(858)304-LandlineAt&T
(858)305-WirelessT-Mobile Usa
(858)306-LandlineTelnyx
(858)307-LandlinePacific Bell
(858)308-WirelessT-Mobile Usa
(858)309-LandlineLevel 3 Telecom Of California
(858)310-LandlineTwilio International
(858)312-LandlineComcast Ip Phone
(858)313-WirelessT-Mobile Usa
(858)314-LandlineTeleport Communications America
(858)315-WirelessNew Cingular Wireless Pcs
(858)316-WirelessNew Cingular Wireless Pcs
(858)318-LandlineTpx Communications
(858)319-WirelessT-Mobile Usa
(858)320-LandlinePacific Bell
(858)321-LandlinePaetec Communications
(858)322-WirelessVerizon Wireless
(858)323-LandlineLevel 3 Communications
(858)324-LandlineTeleport Communications America
(858)325-LandlineWavenation
(858)326-LandlineBandwidth.Com Clec
(858)327-LandlineNuso
(858)328-WirelessNew Cingular Wireless Pcs
(858)329-LandlineBandwidth.Com Clec
(858)330-WirelessT-Mobile Usa
(858)331-WirelessVerizon Wireless
(858)332-LandlineLevel 3 Telecom Of California
(858)333-LandlineBandwidth.Com Clec
(858)334-LandlinePacific Bell
(858)335-WirelessNew Cingular Wireless Pcs
(858)336-WirelessNew Cingular Wireless Pcs
(858)337-WirelessNew Cingular Wireless Pcs
(858)338-LandlineOnvoy
(858)339-WirelessVerizon Wireless
(858)340-WirelessNew Cingular Wireless Pcs
(858)341-WirelessT-Mobile Usa
(858)342-WirelessNew Cingular Wireless Pcs
(858)343-WirelessNew Cingular Wireless Pcs
(858)344-WirelessNew Cingular Wireless Pcs
(858)345-LandlineComcast Ip Phone
(858)346-LandlineGlobal Crossing Local Services
(858)347-WirelessUsa Mobility Wireless
(858)348-LandlineXo California
(858)349-WirelessNew Cingular Wireless Pcs
(858)350-LandlinePacific Bell
(858)351-LandlineHd Carrier
(858)352-LandlineMcimetro Access Transmission Services
(858)353-WirelessNew Cingular Wireless Pcs
(858)354-WirelessVerizon Wireless
(858)355-LandlineFractel
(858)356-LandlineTpx Communications
(858)357-LandlineLevel 3 Telecom Of California
(858)358-LandlineOnvoy
(858)359-LandlineAmerican Messaging Services
(858)360-LandlinePacific Bell
(858)361-WirelessNew Cingular Wireless Pcs
(858)362-LandlineXo California
(858)363-LandlineCommio
(858)364-LandlineNorth County Communication
(858)365-LandlineOnvoy
(858)366-LandlineXo California
(858)367-LandlineIp Horizon
(858)368-LandlineIp Horizon
(858)369-LandlineAt&T
(858)371-LandlineComcast Ip Phone
(858)373-LandlineXo California
(858)375-LandlineTpx Communications
(858)376-LandlineTpx Communications
(858)377-LandlineFractel
(858)378-WirelessVerizon Wireless
(858)379-LandlineBandwidth.Com Clec
(858)380-LandlineLevel 3 Telecom Of California
(858)381-LandlineTeleport Communications America
(858)382-WirelessNew Cingular Wireless Pcs
(858)384-LandlineGlobal Crossing Local Services
(858)385-LandlinePacific Bell
(858)386-LandlineLevel 3 Telecom Of California
(858)388-LandlineFractel
(858)391-LandlinePacific Bell
(858)395-WirelessVerizon Wireless
(858)397-LandlineComcast Ip Phone
(858)398-LandlineOnvoy
(858)399-LandlineFractel
(858)400-LandlineTpx Communications
(858)401-LandlineTeleport Communications America
(858)404-LandlinePacific Bell
(858)405-WirelessT-Mobile Usa
(858)408-LandlineXo California
(858)410-LandlineMcimetro Access Transmission Services
(858)412-LandlineTime Warner Cab
(858)413-LandlineTpx Communications
(858)414-WirelessVerizon Wireless
(858)422-LandlineFractel
(858)424-LandlineOnvoy
(858)427-LandlinePaetec Communications
(858)428-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)429-LandlineLevel 3 Communications
(858)430-LandlineXo California
(858)431-LandlineAt&T
(858)432-LandlineTpx Communications
(858)433-LandlinePaetec Communications
(858)434-LandlineXo California
(858)435-LandlinePaetec Communications
(858)436-LandlineTpx Communications
(858)437-LandlinePacific Bell
(858)438-LandlineOnvoy
(858)442-WirelessVerizon Wireless
(858)444-LandlineTpx Communications
(858)449-WirelessVerizon Wireless
(858)450-LandlinePacific Bell
(858)451-LandlinePacific Bell
(858)452-LandlinePacific Bell
(858)453-LandlinePacific Bell
(858)454-LandlinePacific Bell
(858)455-LandlinePacific Bell
(858)456-LandlinePacific Bell
(858)457-LandlinePacific Bell
(858)458-LandlinePacific Bell
(858)459-LandlinePacific Bell
(858)461-LandlineLevel 3 Communications
(858)462-LandlineTon80 Communications
(858)463-LandlineTon80 Communications
(858)465-LandlineLevel 3 Communications
(858)466-LandlineFractel
(858)467-LandlinePacific Bell
(858)471-WirelessVerizon Wireless
(858)472-WirelessVerizon Wireless
(858)477-LandlineFractel
(858)480-LandlineLevel 3 Telecom Of California
(858)481-LandlinePacific Bell
(858)483-LandlinePacific Bell
(858)484-LandlinePacific Bell
(858)485-LandlinePacific Bell
(858)486-LandlinePacific Bell
(858)487-LandlinePacific Bell
(858)488-LandlinePacific Bell
(858)490-LandlinePacific Bell
(858)492-LandlinePacific Bell
(858)493-LandlineAmerican Messaging Services
(858)494-LandlineAmerican Messaging Services
(858)495-LandlinePacific Bell
(858)496-LandlinePacific Bell
(858)499-LandlinePacific Bell
(858)500-LandlineOnvoy
(858)502-LandlinePacific Bell
(858)503-LandlinePacific Bell
(858)504-WirelessT-Mobile Usa
(858)505-LandlinePacific Bell
(858)509-LandlinePacific Bell
(858)513-LandlinePacific Bell
(858)514-LandlinePacific Bell
(858)518-WirelessSprint Spectrum
(858)519-LandlineTpx Communications
(858)521-LandlinePacific Bell
(858)522-LandlinePacific Bell
(858)523-LandlinePacific Bell
(858)524-LandlinePacific Bell
(858)525-LandlinePacific Bell
(858)526-LandlinePacific Bell
(858)527-LandlinePacific Bell
(858)529-LandlineOnvoy
(858)530-LandlinePacific Bell
(858)531-WirelessNew Cingular Wireless Pcs
(858)533-LandlineFractel
(858)534-LandlinePacific Bell
(858)535-LandlinePacific Bell
(858)536-LandlinePacific Bell
(858)537-LandlinePacific Bell
(858)538-LandlinePacific Bell
(858)539-LandlinePacific Bell
(858)541-LandlinePacific Bell
(858)544-LandlineFractel
(858)546-LandlinePacific Bell
(858)547-LandlinePacific Bell
(858)549-LandlinePacific Bell
(858)550-LandlinePacific Bell
(858)551-LandlinePacific Bell
(858)552-LandlinePacific Bell
(858)554-LandlinePacific Bell
(858)558-LandlinePacific Bell
(858)560-LandlinePacific Bell
(858)564-LandlineTpx Communications
(858)565-LandlinePacific Bell
(858)566-LandlinePacific Bell
(858)567-LandlineFractel
(858)568-WirelessNew Cingular Wireless Pcs
(858)569-LandlinePacific Bell
(858)571-LandlinePacific Bell
(858)573-LandlinePacific Bell
(858)576-LandlinePacific Bell
(858)577-LandlinePacific Bell
(858)578-LandlinePacific Bell
(858)581-LandlinePacific Bell
(858)583-WirelessSprint Spectrum
(858)585-LandlineFractel
(858)586-LandlinePacific Bell
(858)587-LandlinePacific Bell
(858)588-LandlineFractel
(858)592-LandlinePacific Bell
(858)597-LandlinePacific Bell
(858)598-LandlineTeleport Communications America
(858)599-LandlineFractel
(858)600-LandlineAmerican Messaging Services
(858)602-WirelessSprint Spectrum
(858)603-WirelessNew Cingular Wireless Pcs
(858)605-LandlinePaetec Communications
(858)609-LandlineMcimetro Access Transmission Services
(858)610-WirelessT-Mobile Usa
(858)613-LandlinePacific Bell
(858)614-LandlinePacific Bell
(858)616-LandlinePacific Bell
(858)617-LandlineLevel 3 Telecom Of California
(858)618-LandlinePacific Bell
(858)621-LandlinePacific Bell
(858)622-LandlinePacific Bell
(858)623-LandlinePacific Bell
(858)625-LandlinePacific Bell
(858)626-LandlinePacific Bell
(858)627-LandlinePacific Bell
(858)630-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)633-LandlineAt&T
(858)634-LandlineComcast Ip Phone
(858)635-LandlinePacific Bell
(858)636-LandlinePacific Bell
(858)637-LandlinePacific Bell
(858)638-LandlinePacific Bell
(858)642-LandlinePacific Bell
(858)643-LandlinePacific Bell
(858)644-LandlineFractel
(858)646-LandlinePacific Bell
(858)648-LandlineExiant Communications
(858)649-LandlineLevel 3 Telecom Of California
(858)650-LandlinePacific Bell
(858)651-LandlineLevel 3 Telecom Of California
(858)652-WirelessSprint Spectrum
(858)653-LandlinePacific Bell
(858)654-LandlinePacific Bell
(858)655-LandlinePacific Bell
(858)657-LandlinePacific Bell
(858)658-LandlinePacific Bell
(858)663-WirelessSprint Spectrum
(858)665-LandlineTon80 Communications
(858)666-LandlineOnvoy
(858)667-LandlineFractel
(858)668-LandlinePacific Bell
(858)672-LandlinePacific Bell
(858)673-LandlinePacific Bell
(858)674-LandlinePacific Bell
(858)675-LandlinePacific Bell
(858)676-LandlinePacific Bell
(858)677-LandlinePacific Bell
(858)678-LandlinePacific Bell
(858)679-LandlinePacific Bell
(858)682-WirelessSprint Spectrum
(858)683-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)684-LandlinePacific Bell
(858)687-LandlineTon80 Communications
(858)688-WirelessSprint Spectrum
(858)689-LandlinePacific Bell
(858)692-WirelessVerizon Wireless
(858)693-LandlinePacific Bell
(858)694-LandlinePacific Bell
(858)695-LandlinePacific Bell
(858)699-WirelessNew Cingular Wireless Pcs
(858)703-LandlineMcimetro Access Transmission Services
(858)704-LandlineXo California
(858)705-WirelessNew Cingular Wireless Pcs
(858)707-LandlineTpx Communications
(858)712-LandlineMcimetro Access Transmission Services
(858)713-LandlineTpx Communications
(858)715-LandlinePacific Bell
(858)716-LandlineMcimetro Access Transmission Services
(858)717-WirelessT-Mobile Usa
(858)720-LandlinePacific Bell
(858)722-WirelessNew Cingular Wireless Pcs
(858)723-LandlineTon80 Communications
(858)724-LandlineXo California
(858)726-LandlineXo California
(858)727-LandlineTon80 Communications
(858)728-WirelessUsa Mobility Wireless
(858)729-LandlinePacific Bell
(858)731-LandlineMcimetro Access Transmission Services
(858)732-LandlineOnvoy
(858)733-WirelessT-Mobile Usa
(858)735-WirelessVerizon Wireless
(858)736-LandlineLevel 3 Telecom Of California
(858)737-LandlineMcimetro Access Transmission Services
(858)740-LandlineAt&T
(858)742-LandlineTon80 Communications
(858)744-LandlineFractel
(858)746-LandlineLevel 3 Telecom Of California
(858)748-LandlinePacific Bell
(858)750-WirelessVerizon Wireless
(858)751-LandlineTpx Communications
(858)752-WirelessT-Mobile Usa
(858)753-LandlineXo California
(858)754-LandlineLevel 3 Telecom Of California
(858)755-LandlinePacific Bell
(858)756-LandlinePacific Bell
(858)757-LandlineOnvoy
(858)758-LandlineFractel
(858)759-LandlinePacific Bell
(858)761-LandlineXo California
(858)762-LandlineGlobal Crossing Local Services
(858)763-LandlineAmerican Messaging Services
(858)764-LandlinePaetec Communications
(858)765-LandlineTeleport Communications America
(858)766-LandlineOnvoy
(858)768-LandlineComcast Ip Phone
(858)769-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)771-LandlineAt&T
(858)774-WirelessNew Cingular Wireless Pcs
(858)775-WirelessVerizon Wireless
(858)776-WirelessT-Mobile Usa
(858)777-LandlineTpx Communications
(858)779-LandlineLevel 3 Telecom Of California
(858)780-LandlinePacific Bell
(858)784-LandlinePacific Bell
(858)786-LandlineFractel
(858)787-LandlineTon80 Communications
(858)788-LandlineFractel
(858)789-LandlineFractel
(858)790-LandlineTeleport Communications America
(858)792-LandlinePacific Bell
(858)793-LandlinePacific Bell
(858)794-LandlinePacific Bell
(858)795-LandlineTeleport Communications America
(858)798-LandlineLevel 3 Telecom Of California
(858)799-LandlineMcimetro Access Transmission Services
(858)800-LandlineBandwidth.Com Clec
(858)805-LandlineLevel 3 Telecom Of California
(858)808-LandlineFractel
(858)810-LandlineTeleport Communications America
(858)812-LandlineTeleport Communications America
(858)815-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)822-LandlinePacific Bell
(858)824-LandlinePacific Bell
(858)826-LandlinePacific Bell
(858)828-LandlineFractel
(858)829-WirelessSprint Spectrum
(858)831-LandlinePacific Bell
(858)832-LandlineComcast Ip Phone
(858)833-LandlineFractel
(858)834-LandlineGlobal Crossing Local Services
(858)836-LandlineXo California
(858)837-WirelessNew Cingular Wireless Pcs
(858)838-LandlineFractel
(858)842-LandlineComcast Ip Phone
(858)844-LandlineFractel
(858)845-LandlineLevel 3 Telecom Of California
(858)847-LandlinePacific Bell
(858)848-LandlineTeleport Communications America
(858)855-LandlineFractel
(858)856-LandlineAmerican Messaging Services
(858)859-LandlineMcimetro Access Transmission Services
(858)860-LandlineTpx Communications
(858)863-LandlineGlobal Crossing Local Services
(858)864-WirelessSprint Spectrum
(858)866-LandlineTpx Communications
(858)867-LandlineFractel
(858)868-LandlineHd Carrier
(858)869-LandlineTpx Communications
(858)874-LandlinePacific Bell
(858)875-LandlineTpx Communications
(858)876-LandlineGlobal Crossing Local Services
(858)877-LandlineMcimetro Access Transmission Services
(858)878-LandlineFractel
(858)879-LandlineMcimetro Access Transmission Services
(858)880-LandlineMcimetro Access Transmission Services
(858)882-LandlineLevel 3 Telecom Of California
(858)883-WirelessSprint Spectrum
(858)886-LandlinePacific Bell
(858)888-LandlineBandwidth.Com Clec
(858)898-LandlineFractel
(858)899-LandlineFractel
(858)900-LandlineOnvoy
(858)901-LandlineXo California
(858)905-LandlineMcimetro Access Transmission Services
(858)909-LandlinePacific Bell
(858)910-LandlineRadiantiq
(858)914-LandlineLevel 3 Communications
(858)922-WirelessVerizon Wireless
(858)923-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)924-LandlinePacific Bell
(858)925-LandlineLevel 3 Communications
(858)926-WirelessVerizon Wireless
(858)927-LandlineOnvoy
(858)933-LandlineFractel
(858)935-LandlineXo California
(858)939-LandlinePacific Bell
(858)942-LandlineTeleport Communications America
(858)943-LandlineLevel 3 Telecom Of California
(858)944-LandlineFractel
(858)945-WirelessVerizon Wireless
(858)946-LandlineXo California
(858)947-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)951-LandlineGlobal Crossing Local Services
(858)952-LandlineLevel 3 Communications
(858)955-LandlineFractel
(858)956-LandlineMatrix Telecom, Llc. S/I/I Tnci
(858)964-LandlinePaetec Communications
(858)966-LandlinePacific Bell
(858)967-WirelessSprint Spectrum
(858)974-LandlinePacific Bell
(858)977-LandlineFractel
(858)987-LandlineOnvoy
(858)988-LandlineFractel
(858)997-WirelessVerizon Wireless
(858)999-LandlineOnvoy

Frequently Asked Questions about the 858 Area Code

Who called me from a 858 number?

A 858 number is assigned to San Diego, California, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 858 code to look nearby, so a 858 number doesn't prove the caller is local. Recently, 1,438 unwanted-call complaints were reported to the FTC for numbers showing the 858 code (64% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.

Is 858 a scam area code?

No area code is a scam on its own. 858 is a normal, officially assigned code for San Diego, California. Spam callers spoof local codes to raise the odds you answer, so 858 on your caller ID says nothing about who is really calling. Recently, 1,438 unwanted-call complaints were reported to the FTC for numbers showing the 858 code (64% flagged as robocalls). Judge the call itself, not the area code.

Why do I keep getting calls from the 858 area code?

Repeated calls from different 858 numbers are usually spoofing: a robocaller rotates through 858 numbers so each call looks local and slips past simple blocks. Recently, 1,438 unwanted-call complaints were reported to the FTC for numbers showing the 858 code (64% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.

Should I answer an unknown 858 number?

If you aren't expecting a 858 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.

How do I block calls from the 858 area code?

Block a single 858 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 858 code also stops legitimate local calls, so use it only as a last resort.

Where is area code 858?

Area code 858 covers San Diego and the surrounding area in California, spanning 34 cities with about 746,764 residents. It shares its area with overlay code 619.

When did area code 858 go into service?

Area code 858 went into service on June 12, 1999. It was added as an overlay of 619, so 858 numbers serve the same area that 619 already covered.

Is 858 a real area code?

Yes. 858 is an active code in the North American Numbering Plan, assigned by NANPA and in service for San Diego, California. A real code can still show up on spoofed spam calls, so treat unknown 858 calls with normal caution.

What timezone is the 858 area code in?

The 858 area code is in the Pacific Time (PT). Because a number can be kept when someone moves or switches to VoIP, a specific 858 caller may not be in that zone.

How do I call a 858 number from abroad?

From outside the US, dial your country's exit code, then 1 (the US country code), then 858 and the seven-digit number. From a mobile phone you can usually just enter +1 858 followed by the number and let the phone add the exit code for you.

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