Prefix Information

The prefix 421 is part of area code 947 serving Troy, Michigan.

This exchange contains 10,000 possible phone numbers (947-421-0000 through 947-421-9999).

Browse Numbers in This Prefix

947-421-0000-0999 947-421-1000-1999 947-421-2000-2999 947-421-3000-3999 947-421-4000-4999 947-421-5000-5999 947-421-6000-6999 947-421-7000-7999 947-421-8000-8999 947-421-9000-9999

Sample Numbers

(947) 421-0000 (947) 421-1234 (947) 421-2000 (947) 421-3333 (947) 421-4444 (947) 421-5555 (947) 421-6000 (947) 421-7777 (947) 421-8888 (947) 421-9999