Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 617 [Rate centres in NPA 617] [Dial plan for NPA 617]

NXX: 351

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-351 A Boston MA BSTNMABEDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-351 0 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 1 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 2 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 3 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 4 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 5 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 6 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 7 Boston MA   9102 VERIZON NEW ENGLAND INC. 128      
617-351 8 Boston MA   892D ONVOY, LLC - MA 128   2023-06-26   
617-351 9 Boston MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2022-07-29   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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