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: 330

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-330 A Cockeysville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-330 0 Cockeysville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-330 1 Cockeysville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-330 2 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-330 3 Cockeysville MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-330 4 Cockeysville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      
443-330 5 Cockeysville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-330 6 Cockeysville MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
443-330 7 Cockeysville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-330 8 Cockeysville MD MANRMDMNRS0  9212 VERIZON MARYLAND, INC. 238      
443-330 9 Cockeysville MD HNVAMDBHAMD  3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD 238      

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

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