Prefix Information

The prefix 001 is part of area code 400 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (400-001-0000 through 400-001-9999).

Browse Numbers in This Prefix

400-001-0000-0999 400-001-1000-1999 400-001-2000-2999 400-001-3000-3999 400-001-4000-4999 400-001-5000-5999 400-001-6000-6999 400-001-7000-7999 400-001-8000-8999 400-001-9000-9999

Sample Numbers

(400) 001-0000 (400) 001-1234 (400) 001-2000 (400) 001-3333 (400) 001-4444 (400) 001-5555 (400) 001-6000 (400) 001-7777 (400) 001-8888 (400) 001-9999