Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-242 A Sparrows Point MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-242 0 Sparrows Point MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-242 1 Sparrows Point MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2021-02-07   
443-242 2 Sparrows Point MD CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238   2007-06-15   
443-242 3 Sparrows Point MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-242 4 Sparrows Point MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
443-242 5 Sparrows Point MD BLTMMDCHFMD  5562 METROPCS, INC. 238   2020-09-27   
443-242 6 Sparrows Point MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-10-11   
443-242 7 Sparrows Point MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
443-242 8 Sparrows Point MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
443-242 9 Sparrows Point MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-10-22   

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

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