Prefix Information

The prefix 421 is part of area code 314 serving St. Louis, Missouri.

This exchange contains 10,000 possible phone numbers (314-421-0000 through 314-421-9999).

Browse Numbers in This Prefix

314-421-0000-0999 314-421-1000-1999 314-421-2000-2999 314-421-3000-3999 314-421-4000-4999 314-421-5000-5999 314-421-6000-6999 314-421-7000-7999 314-421-8000-8999 314-421-9000-9999

Sample Numbers

(314) 421-0000 (314) 421-1234 (314) 421-2000 (314) 421-3333 (314) 421-4444 (314) 421-5555 (314) 421-6000 (314) 421-7777 (314) 421-8888 (314) 421-9999