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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-256 A Metamora MI SFLDMITODS2  543C ONVOY, LLCV - MI 340      
810-256 0 Metamora MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2021-11-15   
810-256 1 Metamora MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2023-08-21   
810-256 2 Metamora MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2021-08-27   
810-256 4 Metamora MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2021-11-21   
810-256 5 Metamora MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2021-11-21   
810-256 6 Metamora MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-08-26   
810-256 7 Metamora MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2023-01-07   
810-256 8 Metamora MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340   2022-03-26   
810-256 9 Metamora MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2021-10-06   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.