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.

Switch: CMBRMA01X2Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
508-232 A Brockton MA 7421 AT&T LOCAL 128      
774-247 A Buzzards Bay MA 7421 AT&T LOCAL 128      
781-228 A Braintree MA 7421 AT&T LOCAL 128      
781-374 A Hingham MA 7421 AT&T LOCAL 128      
781-421 A Rockland MA 7421 AT&T LOCAL 128      
781-436 A Stoughton MA 7421 AT&T LOCAL 128      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.