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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-607 A Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-607 0 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-607 1 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-607 2 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-607 3 Watertown MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-06-24   
617-607 4 Watertown MA CMBRMAORDSG  4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2014-03-16   
617-607 5 Watertown MA CHTWMABFDS2  966C DSCI, LLC 128   2006-09-14   
617-607 6 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
617-607 7 Watertown MA BSTPMALLDS1  4536 XO MASSACHUSETTS, INC. 128   2007-05-13   
617-607 8 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128   2004-11-22   
617-607 9 Watertown MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128   2004-11-22   

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

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