Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 810 [Rate centres in NPA 810] [Dial plan for NPA 810]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-331 A Almont MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340      
810-331 0 Almont MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-07-18   
810-331 1 Almont MI   543C ONVOY, LLCV - MI 340   2020-11-20   
810-331 2 Almont MI   543C ONVOY, LLCV - MI 340   2020-11-20   
810-331 3 Almont MI   543C ONVOY, LLCV - MI 340   2021-03-05   
810-331 4 Almont MI   543C ONVOY, LLCV - MI 340   2021-03-05   
810-331 5 Almont MI   624H ONVOY SPECTRUM, LLC 340   2021-06-13   
810-331 6 Almont MI   624H ONVOY SPECTRUM, LLC 340   2021-11-22   
810-331 7 Almont MI   624H ONVOY SPECTRUM, LLC 340   2021-11-22   
810-331 8 Almont MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2025-06-09   
810-331 9 Almont MI   318J COMCAST IP PHONE, LLC 340   2023-03-26   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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