Prefix Information

The prefix 421 is part of area code 208 serving Boise, Idaho.

This exchange contains 10,000 possible phone numbers (208-421-0000 through 208-421-9999).

Browse Numbers in This Prefix

208-421-0000-0999 208-421-1000-1999 208-421-2000-2999 208-421-3000-3999 208-421-4000-4999 208-421-5000-5999 208-421-6000-6999 208-421-7000-7999 208-421-8000-8999 208-421-9000-9999

Sample Numbers

(208) 421-0000 (208) 421-1234 (208) 421-2000 (208) 421-3333 (208) 421-4444 (208) 421-5555 (208) 421-6000 (208) 421-7777 (208) 421-8888 (208) 421-9999