623 area code
Phoenix area, Arizona Time.Area code 623 covers Phoenix in Arizona, on Arizona Time. 480 and 602 cover the same area.
Right now in Phoenix
Arizona Time (MST, UTC-7, all year)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
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Where 623 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 623 has 1. Each one's share is how many 623 numbers start there. Its biggest metro area is Phoenix-Mesa-Chandler, AZ.
- Phoenix100%
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 623 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 623 number to them, since you can't tell a work line from a personal cell.
What applies to 623Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
623 and 480 and 602
623 went into service on March 1, 1999. 623, 480 and 602 cover the same area, so new numbers can get any of them and neighbors can have different area codes. 623 holds 17% of the area's exchanges; 480 holds the most. Local calls take all 10 digits.
- 1947602 overlay
- 1999480 overlay
- 1999623 starts
Source: NANPA area code database
Other Arizona area codes
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623 area code FAQ
What area code is 623?
623 is an Arizona area code for Phoenix.
What time zone is the 623 area code in?
Arizona Time (MST, UTC-7, all year).
Is 480 the same as 623?
Same area, different code. 623, 480 and 602 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 623 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 623 area code start?
On March 1, 1999.
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