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: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 581

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-581 A Millbury MA MLBRMAGRRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-581 0 Millbury MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2011-01-03   
508-581 1 Millbury MA MLBRMAGRRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-581 2 Millbury MA WRCSMACEX1X  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128   2005-09-04   
508-581 3 Millbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-05   
508-581 4 Millbury MA OXFRMAAKPS0  293C CHARTER FIBERLINK MA-CCO, LLC - MA 128   2011-08-22   
508-581 5 Millbury MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128   2003-07-28   
508-581 6 Millbury MA WRCSMACEX1X  3370 CTC COMMUNICATIONS CORP. - MA 128   2002-05-08   
508-581 7 Millbury MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2013-10-10   
508-581 8 Millbury MA MLBRMAGRRS1  9102 VERIZON NEW ENGLAND INC. 128      
508-581 9 Millbury MA MLBRMAGRRS1  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.