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: 906

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
781-906 A Waltham MA BSTNMABLDS3  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 0 Waltham MA   7199 MCI WORLDCOM COMMUNICATIONS, INC. - MA 128      
781-906 1 Waltham MA   892D ONVOY, LLC - MA 128   2014-12-10   
781-906 2 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 3 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 4 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 5 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 6 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 7 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 8 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      
781-906 9 Waltham MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.