Prefix Information

The prefix 421 is part of area code 559 serving Fresno, California.

This exchange contains 10,000 possible phone numbers (559-421-0000 through 559-421-9999).

Browse Numbers in This Prefix

559-421-0000-0999 559-421-1000-1999 559-421-2000-2999 559-421-3000-3999 559-421-4000-4999 559-421-5000-5999 559-421-6000-6999 559-421-7000-7999 559-421-8000-8999 559-421-9000-9999

Sample Numbers

(559) 421-0000 (559) 421-1234 (559) 421-2000 (559) 421-3333 (559) 421-4444 (559) 421-5555 (559) 421-6000 (559) 421-7777 (559) 421-8888 (559) 421-9999