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: 978 [Rate centres in NPA 978] [Dial plan for NPA 978]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-437 A Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-437 0 Billerica MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-437 1 Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-437 2 Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-437 3 Billerica MA NRTNMAAACM4  6889 OMNIPOINT MIAMI E LICENSE, LLC 128      
978-437 5 Billerica MA BSTPMALLDS3  892D ONVOY, LLC - MA 128      
978-437 6 Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-437 7 Billerica MA CATNMAAKAMD  6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128      
978-437 8 Billerica MA   515J IP HORIZON LLC 128      
978-437 9 Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.