Local Calling Guide

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

NXX: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-479 A Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-479 0 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-01-13   
810-479 1 Port Huron MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2007-01-30   
810-479 2 Port Huron MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2004-12-12   
810-479 3 Port Huron MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2005-01-07   
810-479 4 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
810-479 5 Port Huron MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2005-02-10   
810-479 6 Port Huron MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2005-02-10   
810-479 7 Port Huron MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2016-10-11   
810-479 8 Port Huron MI SFLDMIDNDS5  9714 GRID 4 COMMUNICATIONS, INC. - MI 340   2006-09-21   
810-479 9 Port Huron MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2005-03-23   

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

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