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: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-855 A Aberdeen MD BLTMMDCH21Z  5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 236      
443-855 0 Aberdeen MD   4773 XO MARYLAND, LLC 236   2012-11-27   
443-855 1 Aberdeen MD   5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 236   2005-06-19   
443-855 2 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 3 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 4 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 5 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 6 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 7 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 8 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   
443-855 9 Aberdeen MD   4773 XO MARYLAND, LLC 236   2010-10-20   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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