Prefix Information

The prefix 312 is part of area code 406 serving Billings, Montana.

This exchange contains 10,000 possible phone numbers (406-312-0000 through 406-312-9999).

Browse Numbers in This Prefix

406-312-0000-0999 406-312-1000-1999 406-312-2000-2999 406-312-3000-3999 406-312-4000-4999 406-312-5000-5999 406-312-6000-6999 406-312-7000-7999 406-312-8000-8999 406-312-9000-9999

Sample Numbers

(406) 312-0000 (406) 312-1234 (406) 312-2000 (406) 312-3333 (406) 312-4444 (406) 312-5555 (406) 312-6000 (406) 312-7777 (406) 312-8888 (406) 312-9999