Local Calling Guide

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

NXX: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-663 A Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 0 Woodlawn MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-20   
443-663 1 Woodlawn MD BLTMMDSNDS5  4773 XO MARYLAND, LLC 238   2013-11-04   
443-663 2 Woodlawn MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-05-02   
443-663 3 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-663 4 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-10-05   
443-663 5 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-14   
443-663 6 Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 7 Woodlawn MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-663 8 Woodlawn MD WDLWMDWLDS0  9212 VERIZON MARYLAND, INC. 238      
443-663 9 Woodlawn MD   515J IP HORIZON LLC 238   2016-05-31   

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

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