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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-777 A Essex MD ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
443-777 0 Essex MD   073H TELNYX LLC 238   2017-03-14   
443-777 1 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 2 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 3 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 4 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 5 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 6 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 7 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 8 Essex MD   9212 VERIZON MARYLAND, INC. 238      
443-777 9 Essex MD   2593 CORE COMMUNICATIONS, INC. - MD 238   2019-04-30   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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