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: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 641

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-641 A Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 0 Newton MA   145J TERRA NOVA TELECOM INC. 128   2023-08-06   
617-641 1 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 2 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 3 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 4 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 5 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 6 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 7 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 8 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      
617-641 9 Newton MA NWTNMAWARP0  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.