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: 977

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 CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-977 1 Belmont MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-977 2 Belmont MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-977 3 Belmont MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-11-01   
617-977 4 Belmont MA BSTNMABLOMD  990E BANDWIDTH.COM CLEC, LLC - MA 128   2013-06-13   
617-977 5 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-22   
617-977 6 Belmont MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2014-09-22   
617-977 7 Belmont MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
617-977 8 Belmont MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2005-07-30   
617-977 9 Belmont MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2005-07-30   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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