Prefix Information

The prefix 991 is part of area code 251 serving Mobile, Alabama.

This exchange contains 10,000 possible phone numbers (251-991-0000 through 251-991-9999).

Browse Numbers in This Prefix

251-991-0000-0999 251-991-1000-1999 251-991-2000-2999 251-991-3000-3999 251-991-4000-4999 251-991-5000-5999 251-991-6000-6999 251-991-7000-7999 251-991-8000-8999 251-991-9000-9999

Sample Numbers

(251) 991-0000 (251) 991-1234 (251) 991-2000 (251) 991-3333 (251) 991-4444 (251) 991-5555 (251) 991-6000 (251) 991-7777 (251) 991-8888 (251) 991-9999