Local Calling Guide

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

NXX: 518

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-518 A Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
443-518 0 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-518 1 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 2 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 3 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 4 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 5 Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238   2009-03-02   
443-518 6 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-05-26   
443-518 7 Columbia MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2010-04-08   
443-518 8 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-03-29   
443-518 9 Columbia MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2009-06-23   

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

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