Local Calling Guide

Area code/prefix search

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

NXX: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-406 A Boston MA CMBRMA01DS5  7135 TC SYSTEMS, INC. 128      
617-406 0 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 1 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 2 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 3 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 4 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 5 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 6 Boston MA   7135 TC SYSTEMS, INC. 128      
617-406 7 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-11-30   
617-406 8 Boston MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2003-11-30   
617-406 9 Boston MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2005-06-03   

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

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