605-591 phone numbers

Numbers 605-591-0000 to 605-591-9999 are assigned to Verizon Wireless in Spearfish, SD. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 605-591-3xxx, 605-591-4xxx, 605-591-5xxx, 605-591-7xxx, 605-591-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 605-591