Area code 623 covers Glendale and surrounding areas in Arizona. It was activated in 1999 as an overlay of area code 602. Today it shares its territory with overlay codes 480 and 602. For the full picture, see all Arizona area codes.
| State | Arizona |
|---|---|
| Primary city | Glendale |
| Cities also served | Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, Sun City, El Mirage |
| Time zone | Mountain (UTC-7 (no DST observed in Arizona)) |
| Year established | March 1, 1999 |
| Original 1947 NPA? | No |
| Parent code | 602 |
| Overlay codes | 480, 602 |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 623
Area code 623 serves Phoenix West Valley — western and northwestern Maricopa County, including the following cities and communities:
- Glendale
- Peoria
- Surprise
- Avondale
- Goodyear
- Buckeye
- Sun City
- El Mirage
Nearby area codes covering the same broader region include: 480, 602, 520, 928.
How to Get a 623 Phone Number
There are three ways to get a phone number with the 623 area code, each suited to a different need:
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Browse 623 Numbers →- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 623 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 623 inventory.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 623 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 623 number. If you already have a 623 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Arizona sometimes can’t accept inbound ports of 623 numbers due to 911 routing rules.
Looking for a 623 number? 212areacode.com offers premium 623 numbers for Glendale, Arizona — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 623 numbers →
Frequently Asked Questions
Is the 623 area code still in use?
Yes. 623 is actively assigned to new phone lines in Phoenix West Valley — western and northwestern Maricopa County.
What is the difference between 623 and 480?
Today they share the same geographic territory in Arizona. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.
What is the parent area code of 623?
Area code 623 is an overlay of 602. Both codes serve the same region of Arizona.
Can I get a 623 number if I don't live in Arizona?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 623 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 623 a scam area code?
No. 623 is a legitimate, active area code for Phoenix West Valley — western and northwestern Maricopa County. Like any area code, scammers occasionally spoof 623 caller IDs, but the code itself is heavily used by real Arizona businesses, government offices, and residents.
What cities does area code 623 cover?
Area code 623 was established to serve the West Valley of metro Phoenix, primarily Glendale, Peoria, Surprise, Avondale, Goodyear, Buckeye, Sun City, and El Mirage, among other Maricopa County communities.
Is area code 623 an overlay?
Yes. As of September 12, 2023, the geographic boundaries between 623, 602, and 480 were eliminated by the Arizona Corporation Commission, creating a three-code overlay complex. All three codes now serve the entire Phoenix metropolitan area, and ten-digit dialing is mandatory.
When was area code 623 created?
Area code 623 was put into service on March 1, 1999, as part of a three-way split of the original 602 area code. The Arizona Corporation Commission approved the split on December 18, 1998.
Does Arizona observe Daylight Saving Time in area code 623?
No. Arizona — with the exception of the Navajo Nation — does not observe Daylight Saving Time. The 623 area code remains on Mountain Standard Time (UTC-7) year-round.
