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: 772

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-772 A Essex MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-772 0 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 1 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 2 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 3 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 4 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 5 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-08-23   
443-772 6 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2020-08-23   
443-772 7 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 8 Essex MD   829J PAETEC ITEL, LLC 238      
443-772 9 Essex MD   829J PAETEC ITEL, LLC 238      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.