Prefix Information

The prefix 604 is part of area code 443 serving Baltimore, Maryland.

This exchange contains 10,000 possible phone numbers (443-604-0000 through 443-604-9999).

Browse Numbers in This Prefix

443-604-0000-0999 443-604-1000-1999 443-604-2000-2999 443-604-3000-3999 443-604-4000-4999 443-604-5000-5999 443-604-6000-6999 443-604-7000-7999 443-604-8000-8999 443-604-9000-9999

Sample Numbers

(443) 604-0000 (443) 604-1234 (443) 604-2000 (443) 604-3333 (443) 604-4444 (443) 604-5555 (443) 604-6000 (443) 604-7777 (443) 604-8888 (443) 604-9999