Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-356 A Leominster MA SOVLMAABAMD  965H FRACTEL, LLC 128      
351-356 0 Leominster MA BSTPMALLOMD  073H TELNYX LLC 128      
351-356 1 Leominster MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-356 2 Leominster MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
351-356 3 Leominster MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
351-356 4 Leominster MA CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
351-356 5 Leominster MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
351-356 6 Leominster MA CMBSMA01GT3  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
351-356 7 Leominster MA SOVLMAABAMD  965H FRACTEL, LLC 128      
351-356 8 Leominster MA CMBRMABENMD  624H ONVOY SPECTRUM, LLC 128      
351-356 9 Leominster MA SOVLMAABAMD  965H FRACTEL, LLC 128      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.