Prefix Information

The prefix 999 is part of area code 443 serving Baltimore, Maryland.

This exchange contains 10,000 possible phone numbers (443-999-0000 through 443-999-9999).

Browse Numbers in This Prefix

443-999-0000-0999 443-999-1000-1999 443-999-2000-2999 443-999-3000-3999 443-999-4000-4999 443-999-5000-5999 443-999-6000-6999 443-999-7000-7999 443-999-8000-8999 443-999-9000-9999

Sample Numbers

(443) 999-0000 (443) 999-1234 (443) 999-2000 (443) 999-3333 (443) 999-4444 (443) 999-5555 (443) 999-6000 (443) 999-7777 (443) 999-8888 (443) 999-9999