623 Area CodePhoenix, AZ
Area code 623 covers Phoenix and nearby communities in Arizona, home to about 2.8 million people across 26 cities. It overlays 480 and 602, so the region uses several codes and every local call needs all ten digits.
Overview
- Major City
- Phoenix
- State
- Arizona (AZ)
- Timezone
- (UTC-7)
- Current Time
- Overlay
- Yes – shares area with 480, 602
Overview of the 623 Area Code
What is the 623 area code?
The 623 area code serves Phoenix, Arizona, alongside other established area codes. When you see a 623 number, it indicates a local number within this geographic area.
Why was area code 623 created?
The 623 area code was introduced as an overlay to add numbers in Phoenix once the existing area codes 480 and 602 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 623 Area Code
The 623 area code serves Phoenix and surrounding areas in Arizona. It operates within the (UTC-7) time zone. It complements the coverage of area codes 480 and 602. This area code covers several key cities, including:
- Phoenix
- Glendale
- Peoria
- Surprise
- Goodyear
- Buckeye
Got a call from a 623 number? It came from Phoenix, AZ. Since 623 overlays with 480 and 602, every local call in the region needs all ten digits to land on the right line. Inside 623, Phoenix holds about 60% of the population; the rest is split across 25 smaller cities.
Phoenix Area Codes Overview
Phoenix is served by multiple area codes, reflecting its telecommunications needs. The 623 area code operates alongside 480, 602. Here are the area codes serving this region:
The introduction of the 623 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 623 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Phoenix | AZ | 1,673,164 | 4% | 33% |
| Glendale | AZ | 258,143 | 1% | 90% |
| Peoria | AZ | 199,924 | 4% | 88% |
| Surprise | AZ | 167,564 | 2% | 87% |
| Goodyear | AZ | 118,186 | 5% | 100% |
| Buckeye | AZ | 114,334 | 7% | 81% |
| Avondale | AZ | 96,609 | 1% | 100% |
| Sun City | AZ | 37,499 | 0% | 100% |
| El Mirage | AZ | 36,468 | 0% | 100% |
| Sun City West | AZ | 24,535 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 623 been reported for unwanted calls?
Yes – 391 unwanted-call complaints were reported to the FTC for numbers showing a 623 area code (May 29 – Jul 2, 2026).
- 56% robocalls
- ↑ 15% vs prior period
Most-reported subjects
- Other45%175
- Medical & prescriptions13%49
- Dropped call or no message12%46
* 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 2026-07-05.
Which prefixes and exchanges belong to area code 623?
30% assigned to a telco
- 69% Landline
- 31% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (623)200- | Landline | Onvoy |
| (623)201- | Landline | Mcimetro Access Transmission Services |
| (623)202- | Wireless | T-Mobile Usa |
| (623)203- | Wireless | New Cingular Wireless Pcs |
| (623)204- | Wireless | New Cingular Wireless Pcs |
| (623)205- | Wireless | New Cingular Wireless Pcs |
| (623)206- | Wireless | New Cingular Wireless Pcs |
| (623)207- | Landline | Qwest |
| (623)208- | Wireless | Verizon Wireless |
| (623)209- | Landline | Allstream |
Frequently Asked Questions about the 623 Area Code
Who called me from a 623 number?
A 623 number is assigned to Phoenix, Arizona, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 623 code to look nearby, so a 623 number doesn't prove the caller is local. Recently, 391 unwanted-call complaints were reported to the FTC for numbers showing the 623 code (56% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 623 a scam area code?
No area code is a scam on its own. 623 is a normal, officially assigned code for Phoenix, Arizona. Spam callers spoof local codes to raise the odds you answer, so 623 on your caller ID says nothing about who is really calling. Recently, 391 unwanted-call complaints were reported to the FTC for numbers showing the 623 code (56% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 623 area code?
Repeated calls from different 623 numbers are usually spoofing: a robocaller rotates through 623 numbers so each call looks local and slips past simple blocks. Recently, 391 unwanted-call complaints were reported to the FTC for numbers showing the 623 code (56% 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 623 number?
If you aren't expecting a 623 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 623 area code?
Block a single 623 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 623 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 623?
Area code 623 covers Phoenix and the surrounding area in Arizona, spanning 26 cities with about 2,801,820 residents. It shares its area with overlay codes 480, 602.
Is 623 a real area code?
Yes. 623 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Phoenix, Arizona. A real code can still show up on spoofed spam calls, so treat unknown 623 calls with normal caution.
What timezone is the 623 area code in?
The 623 area code is in the (UTC-7). Because a number can be kept when someone moves or switches to VoIP, a specific 623 caller may not be in that zone.
How do I call a 623 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 623 and the seven-digit number. From a mobile phone you can usually just enter +1 623 followed by the number and let the phone add the exit code for you.