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: 488

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-488 A Boston MA BSTNMACODS0  7135 TC SYSTEMS, INC. 128      
617-488 0 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 1 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 2 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 3 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 4 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 5 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 6 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 7 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 8 Boston MA   7135 TC SYSTEMS, INC. 128      
617-488 9 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2007-11-02   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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