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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-337 A Flint MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
810-337 0 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-06-20   
810-337 1 Flint MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2016-04-28   
810-337 2 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-05-20   
810-337 3 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-05-20   
810-337 4 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-05-20   
810-337 5 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-05-20   
810-337 6 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-06-20   
810-337 7 Flint MI LIVNMIUX3MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-06-20   
810-337 8 Flint MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2016-07-23   
810-337 9 Flint MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2016-07-25   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.