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: 755

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-755 A Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-755 0 Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-755 1 Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-755 2 Waterloo MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
443-755 3 Waterloo MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2016-05-14   
443-755 4 Waterloo MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
443-755 5 Waterloo MD BLTMMDCHXFX  318J COMCAST IP PHONE LLC 238   2015-08-19   
443-755 6 Waterloo MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2016-05-14   
443-755 7 Waterloo MD BLTMMDCHYMD  530H WIDE VOICE, LLC - MD 238   2016-05-14   
443-755 8 Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      
443-755 9 Waterloo MD EKRGMDELDS0  9212 VERIZON MARYLAND, INC. 238      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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