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: 781 [Rate centres in NPA 781] [Dial plan for NPA 781]

NXX: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-850 A Stoneham MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
781-850 0 Stoneham MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
781-850 1 Stoneham MA BSTNMACOVMD  4084 PAETEC COMMUNICATIONS, INC. - MA 128      
781-850 2 Stoneham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-03   
781-850 3 Stoneham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-03   
781-850 4 Stoneham MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2004-01-13   
781-850 5 Stoneham MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-05-02   
781-850 6 Stoneham MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2008-08-01   
781-850 7 Stoneham MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-21   
781-850 8 Stoneham MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2016-03-21   
781-850 9 Stoneham MA   321J HD CARRIER LLC 128   2016-09-03   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.