Local Calling Guide

Area code/prefix search

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

NXX: 958

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-958 A Port Huron MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 0 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 1 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 2 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 4 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 5 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 6 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 7 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 8 Port Huron MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
810-958 9 Port Huron MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2026-03-12   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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