Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 857 [Rate centres in NPA 857] [Dial plan for NPA 857]

NXX: 598

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
857-598 A Milton MA CMBRMAMQDS0  4536 XO MASSACHUSETTS, INC. 128      
857-598 0 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 1 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 2 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-02-10   
857-598 3 Milton MA   4536 XO MASSACHUSETTS, INC. 128      
857-598 4 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2003-09-10   
857-598 5 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2005-01-04   
857-598 6 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2011-08-27   
857-598 7 Milton MA   892D ONVOY, LLC - MA 128   2021-01-03   
857-598 8 Milton MA   019F FUSION COMMUNICATIONS, LLC 128   2010-03-15   
857-598 9 Milton MA   4018 LEVEL 3 COMMUNICATIONS, LLC - MA 128   2012-03-24   

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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