Prefix Information

The prefix 256 is part of area code 307 serving Cheyenne, Wyoming.

This exchange contains 10,000 possible phone numbers (307-256-0000 through 307-256-9999).

Browse Numbers in This Prefix

307-256-0000-0999 307-256-1000-1999 307-256-2000-2999 307-256-3000-3999 307-256-4000-4999 307-256-5000-5999 307-256-6000-6999 307-256-7000-7999 307-256-8000-8999 307-256-9000-9999

Sample Numbers

(307) 256-0000 (307) 256-1234 (307) 256-2000 (307) 256-3333 (307) 256-4444 (307) 256-5555 (307) 256-6000 (307) 256-7777 (307) 256-8888 (307) 256-9999