- City / exchange
- Phoenix
- Province / state
- Arizona
- Country
- United States
- Carrier
- Onvoy, LLC - Az
- Line type
- Likely VoIP / virtual number
- OCN
- 630E
- Status
- Assigned
- Assigned
- 08/14/2026
- Number pooling
- Yes (block shared between carriers)
623-310 phone numbers
Phoenix, Arizona, United States · Onvoy, LLC - Az
Reported numbers in 623-310
No numbers in this block have been reported by visitors yet.
What does the 623-310 prefix tell you?
Every North American number is area code + prefix + line. The prefix 623-310 was assigned to Onvoy, LLC - Az on 08/14/2026 for the Phoenix exchange. A call from this block usually originates from a Onvoy, LLC - Az customer in or near Phoenix, but caller ID can be spoofed to show any number.
Other Phoenix prefixes in 623
623-200623-201623-202623-203623-204623-205623-206623-207623-208623-209623-210623-212623-213623-214623-215623-216623-217623-218623-219623-220623-221623-222623-223623-224623-225623-226623-227623-228623-229623-230623-231623-232623-233623-234623-235623-236623-237623-238623-239623-240623-241623-242623-243623-244623-245623-246623-247623-248623-249623-250623-251623-252623-253623-254623-255623-256623-257623-258623-259623-260