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: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

NXX: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-510 A Columbiaville MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
810-510 0 Columbiaville MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-09-19   
810-510 1 Columbiaville MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-06-12   
810-510 2 Columbiaville MI SFLDMITODS2  543C ONVOY, LLC - MI 340   2016-02-24   
810-510 3 Columbiaville MI SFLDMITODS2  543C ONVOY, LLC - MI 340   2016-02-24   
810-510 4 Columbiaville MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2016-08-26   
810-510 5 Columbiaville MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2018-12-28   
810-510 6 Columbiaville MI   543C ONVOY, LLC - MI 340   2021-03-05   
810-510 7 Columbiaville MI   508J CENTURYLINK COMMUNICATIONS LLC 340   2014-06-14   
810-510 8 Columbiaville MI   543C ONVOY, LLC - MI 340   2021-03-05   
810-510 9 Columbiaville MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-02-27   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.