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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-977 A Belmont MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-977 0 Belmont MA   4536 XO MASSACHUSETTS, INC. 128      
617-977 1 Belmont MA   4536 XO MASSACHUSETTS, INC. 128      
617-977 2 Belmont MA   4536 XO MASSACHUSETTS, INC. 128      
617-977 3 Belmont MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-11-01   
617-977 4 Belmont MA   990E BANDWIDTH.COM CLEC, LLC - MA 128   2013-06-13   
617-977 5 Belmont MA   892D ONVOY, LLC - MA 128   2014-09-22   
617-977 6 Belmont MA   892D ONVOY, LLC - MA 128   2014-09-22   
617-977 7 Belmont MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
617-977 8 Belmont MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
617-977 9 Belmont MA   4536 XO MASSACHUSETTS, INC. 128   2005-07-30   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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