Arizona · Phone number directory

623 phone numbers & call reports

Received a call from a number starting with 623? Browse available reports below or look up the full number to check its complaint history.

Numbers with reports: 580
FTC complaints: 607
WhoseNum community reports: 0

Reports describe individual experiences, not a verdict on every 623 number. About our sources

Area code guide

623: Arizona

Area code 623 is a geographic telephone code assigned to Arizona. NANPA records its introduction on Mar 1, 1999. Its recorded overlay relationships connect it with 480, 602. Overlay codes share all or part of a numbering region.

State / territory: Arizona
In service since: Mar 1, 1999
Predominant time zone: Mountain
Local dialing within 623: 10 digits
Active overlay partners: 480, 602

Time zones and dialing patterns describe the numbering region. They do not establish a caller’s current time or location. Carrier dialing options can differ.

Rate centers in the 623 assignment data (1)

These are telephone rate-center labels from NANPA’s block assignments, not a list of every city or an exact coverage boundary.

Phoenix

Sources & retrieval dates

NANPA thousands-block assignments Retrieved Oct 18, 2026
NANPA area-code database field definitions Retrieved Oct 19, 2026
NANPA area-code database Retrieved Oct 19, 2026

Numbering facts are stored from the cited sources and updated when a new snapshot is imported. Regional context is separate from unverified call reports.

623 numbers with reports

Open a number to see its available reports and sources.

580 numbers

Ordered by available report and complaint counts. “Record updated” reflects a data update, not necessarily the date of a call.

Browse 623 phone prefixes

Explore exchanges with available reports in this area code.

Questions about 623 numbers

Where are 623 phone numbers from?

The 623 area code is associated with Arizona. This numbering information does not establish where a caller is currently located. Caller ID can be spoofed.

Is every call from 623 spam?

No. A shared prefix does not mean that the numbers belong to the same caller or that every call is unwanted. Reports and complaints are unverified. Check the full number and the details of the call before drawing a conclusion.

What if the number that called me is not listed?

This directory shows numbers with published WhoseNum reports or complaints in our available FTC snapshot. It is not a complete list of assigned numbers or all past calls. Use the lookup above to check an unlisted number and share your own experience from its number page.

What these reports cover

FTC counts come from our imported Do Not Call complaint snapshot, covering complaint filing dates from Sep 10, 2026 to Oct 15, 2026. This is a partial snapshot, not the FTC’s full complaint history. WhoseNum community counts include published reports submitted directly to this site. Neither source verifies who placed a call. Read the source and coverage notes.

623 phone numbers & call reports

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623: Arizona

623 numbers with reports

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Questions about 623 numbers

What these reports cover

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Available reports at a glance

623: Arizona

Browse 623 phone prefixes

Questions about 623 numbers

What these reports cover