← Area code 623
623-275 phone numbers
Numbers 623-275-0000 to 623-275-9999 are assigned to T-Mobile USA, Inc. in Phoenix, AZ.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Numbers 623-275-0000 to 623-275-9999 are assigned to T-Mobile USA, Inc. in Phoenix, AZ.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.