Prefix Information

The prefix 623 is part of area code 240 serving Germantown, Maryland.

This exchange contains 10,000 possible phone numbers (240-623-0000 through 240-623-9999).

Browse Numbers in This Prefix

240-623-0000-0999 240-623-1000-1999 240-623-2000-2999 240-623-3000-3999 240-623-4000-4999 240-623-5000-5999 240-623-6000-6999 240-623-7000-7999 240-623-8000-8999 240-623-9000-9999

Sample Numbers

(240) 623-0000 (240) 623-1234 (240) 623-2000 (240) 623-3333 (240) 623-4444 (240) 623-5555 (240) 623-6000 (240) 623-7777 (240) 623-8888 (240) 623-9999