Prefix Information

The prefix 400 is part of area code 495 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (495-400-0000 through 495-400-9999).

Browse Numbers in This Prefix

495-400-0000-0999 495-400-1000-1999 495-400-2000-2999 495-400-3000-3999 495-400-4000-4999 495-400-5000-5999 495-400-6000-6999 495-400-7000-7999 495-400-8000-8999 495-400-9000-9999

Sample Numbers

(495) 400-0000 (495) 400-1234 (495) 400-2000 (495) 400-3333 (495) 400-4444 (495) 400-5555 (495) 400-6000 (495) 400-7777 (495) 400-8888 (495) 400-9999