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: 239

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-239 A Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 0 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 1 Boston MA BSTPMALLZMD  506J TWILIO INTERNATIONAL, INC. 128   2020-12-19   
617-239 2 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 3 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 4 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 5 Boston MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2020-07-23   
617-239 6 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 7 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 8 Boston MA FRMNMAWAUMD  7421 AT&T - LOCAL 128      
617-239 9 Boston MA   145J TERRA NOVA TELECOM INC. 128   2021-10-27   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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