Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2016-07-01   
978-437 1 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-437 2 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-437 3 Billerica MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 128   2022-09-24   
978-437 5 Billerica MA   892D ONVOY, LLC - MA 128   2022-09-25   
978-437 6 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-437 7 Billerica MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2009-07-03   
978-437 8 Billerica MA   515J IP HORIZON LLC 128   2015-10-16   
978-437 9 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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