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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-815 A Hyannis MA SBTNMAFHDS0  7619 RCN TELECOM SERVICES, INC. - MA 128      
508-815 0 Hyannis MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
508-815 1 Hyannis MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
508-815 2 Hyannis MA   4084 PAETEC COMMUNICATIONS, INC.- MA 128   2010-08-17   
508-815 3 Hyannis MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-09-07   
508-815 4 Hyannis MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-09-19   
508-815 5 Hyannis MA   966C DSCI, LLC 128   2006-06-30   
508-815 6 Hyannis MA   6664 SPRINT SPECTRUM L.P. 128   2007-04-16   
508-815 7 Hyannis MA   6664 SPRINT SPECTRUM L.P. 128   2005-07-19   
508-815 9 Hyannis MA   6664 SPRINT SPECTRUM L.P. 128   2004-07-15   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.