Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 279 [Rate centres in NPA 279] [Dial plan for NPA 279]

NXX: 232

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-232 A Michigan Bar CA SCRMCA01XTZ  939H COMMIO, LLC 726      
279-232 0 Michigan Bar CA SCRMCA01XTZ  939H COMMIO, LLC 726   2023-01-06   
279-232 1 Michigan Bar CA SCRMCA01XTZ  939H COMMIO, LLC 726   2023-01-06   
279-232 3 Michigan Bar CA SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726   2024-09-01   
279-232 4 Michigan Bar CA SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726   2024-09-01   
279-232 5 Michigan Bar CA SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726   2024-09-01   
279-232 6 Michigan Bar CA SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726   2024-09-01   
279-232 7 Michigan Bar CA SCRMCA0101Z  624H ONVOY SPECTRUM, LLC 726   2024-09-01   
279-232 8 Michigan Bar CA SCRMCA01XTZ  939H COMMIO, LLC 726   2024-01-28   
279-232 9 Michigan Bar CA SCRMCA0119Z  490J DISH WIRELESS, LLC 726   2023-10-29   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.