Prefix Information

The prefix 420 is part of area code 406 serving Billings, Montana.

This exchange contains 10,000 possible phone numbers (406-420-0000 through 406-420-9999).

Browse Numbers in This Prefix

406-420-0000-0999 406-420-1000-1999 406-420-2000-2999 406-420-3000-3999 406-420-4000-4999 406-420-5000-5999 406-420-6000-6999 406-420-7000-7999 406-420-8000-8999 406-420-9000-9999

Sample Numbers

(406) 420-0000 (406) 420-1234 (406) 420-2000 (406) 420-3333 (406) 420-4444 (406) 420-5555 (406) 420-6000 (406) 420-7777 (406) 420-8888 (406) 420-9999