Local Calling Guide

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

NXX: 767

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-767 A Worthington MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-767 0 Worthington MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-767 1 Worthington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-11   
443-767 2 Worthington MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-04-02   
443-767 3 Worthington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2020-06-11   
443-767 4 Worthington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
443-767 5 Worthington MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL, INC. 238   2020-12-26   
443-767 6 Worthington MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-767 7 Worthington MD PIVLMDPKFMD  9170 BROADVIEW NETWORKS, INC. - MD 238   2008-09-08   
443-767 8 Worthington MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-767 9 Worthington MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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

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