Prefix Information

The prefix 304 is part of area code 443 serving Baltimore, Maryland.

This exchange contains 10,000 possible phone numbers (443-304-0000 through 443-304-9999).

Browse Numbers in This Prefix

443-304-0000-0999 443-304-1000-1999 443-304-2000-2999 443-304-3000-3999 443-304-4000-4999 443-304-5000-5999 443-304-6000-6999 443-304-7000-7999 443-304-8000-8999 443-304-9000-9999

Sample Numbers

(443) 304-0000 (443) 304-1234 (443) 304-2000 (443) 304-3333 (443) 304-4444 (443) 304-5555 (443) 304-6000 (443) 304-7777 (443) 304-8888 (443) 304-9999