Local Calling Guide

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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-220 0 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 1 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 2 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 3 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 4 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 5 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 6 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-02-18   
301-220 7 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-220 8 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
301-220 9 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-221 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-222 A Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 0 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 1 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 2 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 3 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2005-12-10   
301-222 4 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 5 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 6 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 7 Washington Zone 2 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-08-06   
301-222 8 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-222 9 Washington Zone 2 MD HRNDVA13AMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-223 A Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 0 Williamsport MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2016-10-16   
301-223 1 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 2 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 3 Williamsport MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-223 4 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 5 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 6 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 7 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 8 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-223 9 Williamsport MD WLPTMDWPRS2  9212 VERIZON MARYLAND, INC. 240      
301-224 A Washington Zone 2 MD SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-225 A Washington Zone 14 MD WASHDCDTDS1  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-225 0 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 1 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 2 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 3 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 4 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 5 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 6 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 7 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 8 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-225 9 Washington Zone 14 MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2009-07-20   
301-226 A Washington Zone 4 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-227 A Washington Zone 2 MD BTHSMDWADS0  9212 VERIZON MARYLAND, INC. 236      
301-228 A Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      
301-228 0 Frederick MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-05-21   
301-228 1 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240      

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

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