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: DRCHMAADRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
617-265 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-282 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-287 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-288 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-436 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-822 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-825 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-929 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.