Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-662 A Sparks-Glencoe MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 0 Sparks-Glencoe MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 1 Sparks-Glencoe MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-662 2 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-662 3 Sparks-Glencoe MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-662 4 Sparks-Glencoe MD CLMAMDNIDS1  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238   2004-07-24   
443-662 5 Sparks-Glencoe MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-07-03   
443-662 6 Sparks-Glencoe MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-662 7 Sparks-Glencoe MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 8 Sparks-Glencoe MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-662 9 Sparks-Glencoe MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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

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