Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-339 A Washington Zone 10 MD HRNDVA13DS0  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 0 Washington Zone 10 MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 1 Washington Zone 10 MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 2 Washington Zone 10 MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 3 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-12-15   
301-339 4 Washington Zone 10 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2006-10-30   
301-339 5 Washington Zone 10 MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      
301-339 6 Washington Zone 10 MD   7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 236   2012-03-02   
301-339 7 Washington Zone 10 MD   4716 PAETEC COMMUNICATIONS, INC. - MD 236   2006-12-21   
301-339 8 Washington Zone 10 MD   318J COMCAST IP PHONE LLC 236   2012-12-01   
301-339 9 Washington Zone 10 MD   3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 236      

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

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