Local Calling Guide

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Search area code/prefix (NPA/NXX)
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Union Bridge, MD

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
410-775 A UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 0 UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 1 UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 2 UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 3 BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238      
410-775 4 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-775 5 BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-775 6 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-775 7 UNBRMDUBRS0  9212 VERIZON MARYLAND, INC. 238      
410-775 8 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
410-775 9 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-247 A BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-247 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-247 1 BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-247 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-247 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-247 4 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-247 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-247 6   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-247 7 BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238      
443-247 8 BLTMMDCHX7X  073H TELNYX LLC 238      
443-247 9   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-937 A BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
443-937 0   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-937 1 CLMAMDJTAMD  2589 US LEC OF MARYLAND, INC. 238      
443-937 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-937 3 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-937 4   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-937 5 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-937 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-937 7 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-937 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
443-937 9 BLTMMDFMDS0  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 238      
667-399 A BLTMMDCHXVX  321J HD CARRIER LLC 238      
667-399 0 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-399 1 BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
667-399 3   145J TERRA NOVA TELECOM INC. 238      
667-399 4 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-399 5 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-399 6 BLTMMDCHX7X  073H TELNYX LLC 238      
667-399 7 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-399 8 BLTMMDCHXVX  321J HD CARRIER LLC 238      
667-399 9 BLTMMDCHXVX  321J HD CARRIER LLC 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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