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: DRCHMAADDS1

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      
617-474 0 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 1 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 2 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 3 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 4 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 5 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 7 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 8 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-474 9 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-506 4 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128   2004-06-25   
617-533 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 1 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 2 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 4 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 5 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-533 6 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 A Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 0 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 1 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 2 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 3 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 4 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 5 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 6 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 7 Dorchester MA 9102 VERIZON NEW ENGLAND INC. 128      
617-740 8 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: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.