Prefix Information

The prefix 621 is part of area code 443 serving Baltimore, Maryland.

This exchange contains 10,000 possible phone numbers (443-621-0000 through 443-621-9999).

Browse Numbers in This Prefix

443-621-0000-0999 443-621-1000-1999 443-621-2000-2999 443-621-3000-3999 443-621-4000-4999 443-621-5000-5999 443-621-6000-6999 443-621-7000-7999 443-621-8000-8999 443-621-9000-9999

Sample Numbers

(443) 621-0000 (443) 621-1234 (443) 621-2000 (443) 621-3333 (443) 621-4444 (443) 621-5555 (443) 621-6000 (443) 621-7777 (443) 621-8888 (443) 621-9999