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: 830

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
617-830 A Boston MA CHTWMABFDS2  966c DSCI, LLC 128   2005-04-10   
617-830 0 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2005-05-05   
617-830 1 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 2 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 3 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 4 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 5 Boston MA   966C DSCI, LLC 128   2005-04-10   
617-830 6 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 7 Boston MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-04-15   
617-830 8 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2005-05-05   
617-830 9 Boston MA   4536 XO MASSACHUSETTS, INC. 128   2005-05-05   

Last updated: Sat, 31 Oct 2020 19:28:10 UTC

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