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← Area code 224

224-308 phone numbers

Numbers 224-308-0000 to 224-308-9999 are assigned to T-Mobile USA, Inc. in Round Lake, IL. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 224-308