Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 508 [Rate centres in NPA 508] [Dial plan for NPA 508]

NXX: 440

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
508-440 A Franklin MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
508-440 0 Franklin MA   515J IP HORIZON LLC 128   2019-04-26   
508-440 1 Franklin MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-10-24   
508-440 2 Franklin MA   829J PAETEC ITEL, LLC 128   2006-07-08   
508-440 3 Franklin MA SOVLMAAB5MD  732H BARR TELL USA, INC. - MA 128   2016-01-01   
508-440 4 Franklin MA BSTPMALLDS3  892D ONVOY, LLC - MA 128   2024-03-01   
508-440 5 Franklin MA NWTNMAWAVMD  318J COMCAST IP PHONE, LLC 128   2005-04-09   
508-440 6 Franklin MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2015-06-05   
508-440 7 Franklin MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2016-06-30   
508-440 8 Franklin MA STHMMAGBGT0  7619 RCN TELECOM SERVICES, INC. - MA 128      
508-440 9 Franklin MA CMBSMA01AMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128   2008-06-23   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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