Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
810-350 A Montrose MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340      
810-350 0 Montrose MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2006-11-03   
810-350 2 Montrose MI FETPMIAU2MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 340   2012-10-05   
810-350 3 Montrose MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2013-11-06   
810-350 4 Montrose MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2017-12-15   
810-350 5 Montrose MI BRHMMIBDBMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2016-03-21   
810-350 6 Montrose MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-05-03   
810-350 7 Montrose MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 340   2010-06-12   
810-350 8 Montrose MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2019-11-26   
810-350 9 Montrose MI DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2016-06-03   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.