Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-437 A Pocomoke MD SLBRMDSBXUX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242      
443-437 0 Pocomoke MD   876D ONVOY, LLC - MD 242   2019-03-04   
443-437 1 Pocomoke MD   876D ONVOY, LLC - MD 242   2019-03-04   
443-437 2 Pocomoke MD   7421 AT&T LOCAL 242   2006-02-27   
443-437 3 Pocomoke MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 242   2012-03-01   
443-437 4 Pocomoke MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-437 5 Pocomoke MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2018-05-14   
443-437 6 Pocomoke MD   7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 242   2012-05-01   
443-437 7 Pocomoke MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 242   2006-07-31   
443-437 8 Pocomoke MD   073H TELNYX LLC 242   2017-09-13   
443-437 9 Pocomoke MD   281E YMAX COMMUNICATIONS CORP. - MD 242   2011-04-03   
443-438 A Baltimore MD CTVLMDBACM3  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-12-14   
443-438 0 Baltimore MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2008-12-14   
443-438 1 Baltimore MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-01-11   
443-438 2 Baltimore MD   4716 PAETEC COMMUNICATIONS, INC. - MD 238   2009-09-17   
443-438 3 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-438 4 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-438 5 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-438 6 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-438 7 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-438 8 Baltimore MD   281E YMAX COMMUNICATIONS CORP. - MD 238   2009-09-24   
443-438 9 Baltimore MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2009-03-02   
443-439 A Trappe MD SLBRMDAZCM2  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242      
443-439 0 Trappe MD   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2018-11-20   
443-439 2 Trappe MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2016-10-16   
443-439 3 Trappe MD   073H TELNYX LLC 242   2017-09-13   
443-439 4 Trappe MD   568G PEERLESS NETWORK OF MARYLAND, LLC 242   2018-03-11   
443-439 5 Trappe MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-439 6 Trappe MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2012-05-04   
443-439 7 Trappe MD   2593 CORE COMMUNICATIONS, INC. - MD 242   2018-06-17   
443-439 8 Trappe MD   876D ONVOY, LLC - MD 242   2017-04-14   
443-439 9 Trappe MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2006-06-02   
443-440 A Annapolis MD ANNPMDANDS0  9212 VERIZON MARYLAND, INC. 238      
443-440 0 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-09-10   
443-440 1 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-09-10   
443-440 2 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-09-10   
443-440 3 Annapolis MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2010-11-07   
443-440 4 Annapolis MD   9212 VERIZON MARYLAND, INC. 238      
443-440 5 Annapolis MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-06-26   
443-440 6 Annapolis MD   4773 XO MARYLAND, LLC 238   2010-08-16   
443-440 7 Annapolis MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2011-09-04   
443-440 8 Annapolis MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2011-02-11   
443-440 9 Annapolis MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2011-02-11   
443-441 A Glenwood MD BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-441 0 Glenwood MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-441 1 Glenwood MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-441 2 Glenwood MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2016-10-16   
443-441 3 Glenwood MD   073H TELNYX LLC 238   2017-04-26   
443-441 4 Glenwood MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2018-06-16   
443-441 5 Glenwood MD   7228 MCI WORLDCOM COMMUNICATIONS, INC. - MD 238   2018-01-22   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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