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: 665

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
978-665 A Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 0 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 1 Fitchburg MA   515J IP HORIZON LLC 128   2016-07-01   
978-665 2 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 3 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 4 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 5 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 6 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 7 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      
978-665 8 Fitchburg MA   145J TERRA NOVA TELECOM INC. 128   2024-02-08   
978-665 9 Fitchburg MA FTBGMAMARP1  9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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