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
617-307 A South Boston MA WRCSMA05DS0  4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
617-307 0 South Boston MA   3370 CTC COMMUNICATIONS CORP. - MA 128   2002-10-13   
617-307 1 South Boston MA   8924 BROADWING COMMUNICATIONS, LLC - MA 128   2005-04-14   
617-307 2 South Boston MA   6664 SPRINT SPECTRUM L.P. 128   2005-05-16   
617-307 3 South Boston MA   989G VOXBEAM TELECOMMUNICATIONS INC. - MA 128   2014-09-15   
617-307 4 South Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-23   
617-307 5 South Boston MA   966C DSCI, LLC 128   2005-04-10   
617-307 6 South Boston MA   4052 CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC 128      
617-307 7 South Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-10-23   
617-307 8 South Boston MA   6664 SPRINT SPECTRUM L.P. 128   2005-11-14   
617-307 9 South Boston MA   4536 XO MASSACHUSETTS, INC. 128   2006-07-17   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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