970-904 phone numbers

Numbers 970-904-0000 to 970-904-9999 are assigned to T-Mobile USA, Inc. in Vail, CO. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 970-904-3xxx, 970-904-4xxx, 970-904-7xxx, 970-904-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 970-904