Prefix Information

The prefix 100 is part of area code 303 serving Denver, Colorado.

This exchange contains 10,000 possible phone numbers (303-100-0000 through 303-100-9999).

Browse Numbers in This Prefix

303-100-0000-0999 303-100-1000-1999 303-100-2000-2999 303-100-3000-3999 303-100-4000-4999 303-100-5000-5999 303-100-6000-6999 303-100-7000-7999 303-100-8000-8999 303-100-9000-9999

Sample Numbers

(303) 100-0000 (303) 100-1234 (303) 100-2000 (303) 100-3333 (303) 100-4444 (303) 100-5555 (303) 100-6000 (303) 100-7777 (303) 100-8888 (303) 100-9999