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: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 606

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-606 A Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-606 0 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2009-05-07   
617-606 1 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2008-08-17   
617-606 2 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2007-10-08   
617-606 3 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-15   
617-606 4 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128      
617-606 5 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 6 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 7 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   
617-606 8 Roxbury MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2012-08-17   
617-606 9 Roxbury MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-16   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.