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: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-720 A Aberdeen MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 236      
443-720 0 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2014-06-22   
443-720 1 Aberdeen MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 236   2013-01-11   
443-720 2 Aberdeen MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 236   2013-01-11   
443-720 3 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2016-02-25   
443-720 4 Aberdeen MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 236   2013-06-15   
443-720 5 Aberdeen MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 236   2013-01-14   
443-720 6 Aberdeen MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 236   2018-07-19   
443-720 7 Aberdeen MD BLTMMDCH42Z  876D ONVOY, LLC - MD 236   2014-08-30   
443-720 8 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-07-09   
443-720 9 Aberdeen MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-07-09   

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

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