623 Area Code
Covers Glendale and nearby communities in Arizona.
(623) 555-0142Area code 623 map
Interactive coverage map for area code 623, centered on Glendale, Arizona
33.5386, -112.1860
Open in OpenStreetMapArea code 623 coverage map — centered on Glendale. Shaded area shows the approximate reach around the primary city.
623 is the area code for Glendale and the surrounding part of Arizona. It reaches roughly 600,000 people across places such as Glendale, Peoria, Surprise, Avondale and more. The region observes Mountain time, so a number like (623) 555-0142 is on that clock right now. On the ground it spans Maricopa. It is not currently paired with an overlay code. Local calls inside the 623 area can generally be placed with ten digits, and you do not need a leading 1 for domestic calls. Scroll on for a real-time clock, an area map, the cities and counties inside 623, its related area codes, and practical advice on 623 robocalls and caller-ID spoofing.
Cities covered by 623
Cities & neighborhoods
- Glendale
- Peoria
- Surprise
- Avondale
- Sun City West
Nearby & overlay area codes
Overlay codes (same area)
These share 623’s geography — a number in either code can be on the same street.
623 has no overlay code right now.
Neighboring codes
Codes for adjacent regions and metros.
Is a call from 623 a scam?
Area code 623 serves Glendale and the surrounding area, so most calls are ordinary local and business traffic. As everywhere, spam and robocalls do use 623 numbers, frequently by spoofing a local-looking caller ID to boost pickup rates. The area code itself tells you nothing about who is really calling, so judge the call by what's said, not the number.
Red flags to watch for
- Pressure to act right now, or threats of arrest, fines, or service being cut off.
- Requests to pay with gift cards, wire transfer, crypto, or a payment app.
- Asking for passwords, one-time codes, your SSN, or full card/bank numbers.
- A robocall or recording, or a number that won’t let you call back.
When unsure, hang up and call the organization back on a number you look up yourself.
Calling a 623 number from abroad
Every 623 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 623 555-0142If your phone can’t dial the +, replace it with your country’s exit code, then 1, then the number:
- UK, Germany, France & most of Europe
00 1 623 555-0142 - Australia
0011 1 623 555-0142 - Japan
010 1 623 555-0142 - Mexico
00 1 623 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 623 555-0142.
Reverse phone lookup
Check any US or Canada number to see whether it's a working line, which carrier it sits on, whether it's mobile, landline or VoIP, and roughly where it's registered.
Shows carrier, line type and location. Owner name isn't available here.
Results are for personal, informational use only and may not be used for employment, credit, housing or tenant-screening decisions.
Area code 623: frequently asked questions
Where is the 623 area code located?
The 623 area code is located in Arizona, centered on Glendale. It covers Maricopa and nearby communities including Glendale, Peoria, Surprise, Avondale, Sun City West.
What time zone is 623 in?
Area code 623 is in the Mountain time zone (UTC-7 (MST)). You can see the exact current local time for Glendale on the live clock above.
What cities use area code 623?
Cities and areas that use 623 include Glendale, Peoria, Surprise, Avondale, Sun City West. Its primary city is Glendale, AZ.
Do I need to dial 1 before 623?
You generally do not need to dial a leading 1 for domestic calls to 623. Ten-digit dialing (the 623 code plus the seven-digit number) is the safest habit.
Is 623 a toll-free or scam number?
No — 623 is a normal geographic area code for Glendale, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 623 number is not inherently a scam, but the code can be spoofed. See the spam-call section above for how to tell.
What are the overlay area codes for 623?
Area code 623 does not currently have an overlay code; it is not layered on top of another code in the same area.