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: 840

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-840 A Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128      
508-840 0 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-15   
508-840 1 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-15   
508-840 2 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2008-12-15   
508-840 3 Attleboro MA CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-03-26   
508-840 4 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2010-07-30   
508-840 5 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-09   
508-840 6 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-09   
508-840 7 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-09   
508-840 8 Attleboro MA NRTNMAAACM4  5562 METROPCS, INC. 128   2009-07-09   
508-840 9 Attleboro MA CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2009-10-19   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.