Prefix Information

The prefix 123 is part of area code 400 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (400-123-0000 through 400-123-9999).

Browse Numbers in This Prefix

400-123-0000-0999 400-123-1000-1999 400-123-2000-2999 400-123-3000-3999 400-123-4000-4999 400-123-5000-5999 400-123-6000-6999 400-123-7000-7999 400-123-8000-8999 400-123-9000-9999

Sample Numbers

(400) 123-0000 (400) 123-1234 (400) 123-2000 (400) 123-3333 (400) 123-4444 (400) 123-5555 (400) 123-6000 (400) 123-7777 (400) 123-8888 (400) 123-9999