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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-436 A Billerica MA BLRCMAANRP0  9102 VERIZON NEW ENGLAND INC. 128      
978-436 0 Billerica MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
978-436 1 Billerica MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 128      
978-436 2 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 3 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 4 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 5 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 6 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 7 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 8 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      
978-436 9 Billerica MA   9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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