Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 495

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-495 A Parkville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-495 0 Parkville MD   145J TERRA NOVA TELECOM INC. 238      
443-495 2 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-495 3 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-495 4 Parkville MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-495 5 Parkville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-495 6 Parkville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-495 7 Parkville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-495 8 Parkville MD BLTQMD012MD  964H BARR TELL USA, INC. 238      
443-495 9 Parkville MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.