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: 345

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-345 A Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 0 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 1 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 2 Boston MA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 128   2016-10-25   
617-345 3 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 4 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 5 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 6 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 7 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 8 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      
617-345 9 Boston MA BSTNMAFRDS2  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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