Prefix Information

The prefix 421 is part of area code 442 serving Oceanside, California.

This exchange contains 10,000 possible phone numbers (442-421-0000 through 442-421-9999).

Browse Numbers in This Prefix

442-421-0000-0999 442-421-1000-1999 442-421-2000-2999 442-421-3000-3999 442-421-4000-4999 442-421-5000-5999 442-421-6000-6999 442-421-7000-7999 442-421-8000-8999 442-421-9000-9999

Sample Numbers

(442) 421-0000 (442) 421-1234 (442) 421-2000 (442) 421-3333 (442) 421-4444 (442) 421-5555 (442) 421-6000 (442) 421-7777 (442) 421-8888 (442) 421-9999