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.

Williamstown, MA

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
413-884 5   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 126   2004-02-27   
413-884 6   793K TWC IP ENABLED SERVICES, LLC 126   2006-11-20   
413-884 7   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 126   2024-11-26   
413-884 8   3849 RINGSQUARED TELECOM LLC 126   2009-04-02   
413-884 9   829J PAETEC ITEL, LLC 126      

<< 1 2

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.