Prefix Information

The prefix 531 is part of area code 443 serving Baltimore, Maryland.

This exchange contains 10,000 possible phone numbers (443-531-0000 through 443-531-9999).

Browse Numbers in This Prefix

443-531-0000-0999 443-531-1000-1999 443-531-2000-2999 443-531-3000-3999 443-531-4000-4999 443-531-5000-5999 443-531-6000-6999 443-531-7000-7999 443-531-8000-8999 443-531-9000-9999

Sample Numbers

(443) 531-0000 (443) 531-1234 (443) 531-2000 (443) 531-3333 (443) 531-4444 (443) 531-5555 (443) 531-6000 (443) 531-7777 (443) 531-8888 (443) 531-9999