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: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-781 A Armiger-Gibson Island MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238      
443-781 0 Armiger-Gibson Island MD BLTMMD91GT0  2593 CORE COMMUNICATIONS, INC.- MD 238   2019-04-30   
443-781 3 Armiger-Gibson Island MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2018-02-08   
443-781 4 Armiger-Gibson Island MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-04-20   
443-781 5 Armiger-Gibson Island MD   876D ONVOY, LLC - MD 238   2021-03-04   
443-781 6 Armiger-Gibson Island MD   876D ONVOY, LLC - MD 238   2021-03-04   
443-781 7 Armiger-Gibson Island MD BLTMMDCHXMX  506J TWILIO INTERNATIONAL INC 238   2020-12-26   
443-781 8 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   
443-781 9 Armiger-Gibson Island MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2019-02-19   

Last updated: Wed, 12 Jan 2022 16:20:07 UTC

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