Prefix Information

The prefix 400 is part of area code 210 serving San Antonio, Texas.

This exchange contains 10,000 possible phone numbers (210-400-0000 through 210-400-9999).

Browse Numbers in This Prefix

210-400-0000-0999 210-400-1000-1999 210-400-2000-2999 210-400-3000-3999 210-400-4000-4999 210-400-5000-5999 210-400-6000-6999 210-400-7000-7999 210-400-8000-8999 210-400-9000-9999

Sample Numbers

(210) 400-0000 (210) 400-1234 (210) 400-2000 (210) 400-3333 (210) 400-4444 (210) 400-5555 (210) 400-6000 (210) 400-7777 (210) 400-8888 (210) 400-9999