Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 0334 METROPOLITAN TELECOMMUNICATIONS OF MASS DBA METTEL

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
617-284 1 Somerville MA CMBRMABEX9Y  128   2007-03-05   
857-756 A Cambridge MA CMBRMABEX9Y  128      
857-756 1 Cambridge MA CMBRMABEX9Y  128   2005-09-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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