Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 540 [Rate centres in NPA 540] [Dial plan for NPA 540]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-579 A Catoctin VA LSBGVA10DMD  7421 AT&T - LOCAL 246      
540-579 0 Catoctin VA LSBGVALBZMD  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 246   2008-02-19   
540-579 1 Catoctin VA   5832 CORETEL VIRGINIA, LLC - VA 246   2009-03-27   
540-579 2 Catoctin VA FRBGVAFBJMD  079F BANDWIDTH.COM CLEC, LLC - VA 246   2014-02-28   
540-579 3 Catoctin VA LSBGVALBQMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 246   2009-04-02   
540-579 4 Catoctin VA LSBGVALBZMD  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 246   2005-09-29   
540-579 5 Catoctin VA CLPPVACURMD  138E ONVOY, LLC - VA 246   2017-03-29   
540-579 6 Catoctin VA CLPPVA94DS0  275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 246   2018-03-15   
540-579 7 Catoctin VA LSBGVALBZMD  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 246   2008-02-27   
540-579 8 Catoctin VA LSBGVALBX7X  318J COMCAST IP PHONE, LLC 246   2018-06-21   
540-579 9 Catoctin VA LSBGVA10DMD  7421 AT&T - LOCAL 246   2003-06-02   

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

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