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.
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OCN: 3849 RINGSQUARED TELECOM LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
413-223 4 Greenfield MA RCMDMAXADS1  126   2009-04-02   
413-429 8 Great Barrington MA RCMDMAXADS1  126   2005-10-13   
413-662 8 North Adams MA RCMDMAXADS1  126   2009-04-02   
413-728 8 Lenox MA RCMDMAXADS1  126   2004-07-24   
413-884 8 Williamstown MA RCMDMAXADS1  126   2009-04-02   
413-997 A Pittsfield MA RCMDMAXADS1  126      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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