Local Calling Guide

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

NXX: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-320 A Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 0 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 1 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 2 Port Huron MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-06-18   
810-320 3 Port Huron MI DTRTMIBHMMD  1200 TALK AMERICA INC. - MI 340   2007-09-13   
810-320 5 Port Huron MI   145J TERRA NOVA TELECOM INC. 340   2021-06-01   
810-320 6 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 7 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-320 8 Port Huron MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-06-18   
810-320 9 Port Huron MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2021-06-18   

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

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