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: FRMNMAWARMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-485 A Newton MA 7421 AT&T LOCAL 128      
617-631 A Newton MA 7421 AT&T LOCAL 128      
781-265 A Burlington MA 7421 AT&T LOCAL 128      
781-298 A Canton MA 7421 AT&T LOCAL 128      
781-355 A Dedham MA 7421 AT&T LOCAL 128      
781-451 A Wakefield MA 7421 AT&T LOCAL 128      
781-472 A Waltham MA 7421 AT&T LOCAL 128      
781-482 A Lexington MA 7421 AT&T LOCAL 128      
781-537 A Woburn MA 7421 AT&T LOCAL 128      
781-705 A Wellesley MA 7421 AT&T LOCAL 128      
978-753 A Wilmington MA 7421 AT&T LOCAL 128      

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

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