Prefix Information

The prefix 991 is part of area code 420 serving Unknown, Unknown.

This exchange contains 10,000 possible phone numbers (420-991-0000 through 420-991-9999).

Browse Numbers in This Prefix

420-991-0000-0999 420-991-1000-1999 420-991-2000-2999 420-991-3000-3999 420-991-4000-4999 420-991-5000-5999 420-991-6000-6999 420-991-7000-7999 420-991-8000-8999 420-991-9000-9999

Sample Numbers

(420) 991-0000 (420) 991-1234 (420) 991-2000 (420) 991-3333 (420) 991-4444 (420) 991-5555 (420) 991-6000 (420) 991-7777 (420) 991-8888 (420) 991-9999