Area Code 623 Phone Number
for Your Business
Get a local 623 number for your business in Phoenix, AZ. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 623?
Area code 623 is a North American telephone area code serving Phoenix, Arizona and 3 other cities in the region. It has been in service since March 1, 1999 and operates on Mountain Time. It is part of the 480/602/623 overlay complex. Businesses operating in the 623 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 623 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 623 at a Glance
- Region
- West Phoenix / Glendale, Arizona
- In service
- Since March 1, 1999
- Time zone
- Mountain Time
- History
- Added on March 1, 1999 as an overlay of 602
- Telemarketing hours
- 8 a.m.–9 p.m. Mountain Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Cities Served by Area Code 623
Why Your Business Needs a 623 Local Number
A local number tells customers you're part of the community. People in Phoenix are more likely to pick up a call from a 623 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 623 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 623
What cities use area code 623?
Area code 623 serves the West Phoenix / Glendale area of Arizona. Cities in the 623 region include Phoenix, AZ; Scottsdale, AZ; Mesa, AZ; Glendale, AZ.
Is area code 623 an overlay?
Yes. 623 is part of the 480/602/623 overlay, so new numbers in this region can come from any of those area codes, and local calls require 10-digit dialing.
What time zone is area code 623 in?
Area code 623 is in Mountain Time. Telemarketing calls to residential 623 numbers are limited to 8 a.m.–9 p.m. Mountain Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 623 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 623 area code number regardless of where your business is physically located. This lets you establish a local presence in Phoenix without a physical office.
Can I keep my existing 623 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 623 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 623 local number is included in the plan.
Get Your 623 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.