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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-372 A Port Huron MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2025-09-04   
810-372 0 Port Huron MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2025-09-04   
810-372 1 Port Huron MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2025-09-04   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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