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.
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Switch: BLRCMAANRP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
978-262 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-294 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-294 1 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-436 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 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      
978-437 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-437 1 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-437 2 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-437 6 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-437 9 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 1 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 3 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 4 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 8 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-439 9 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-625 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-625 5 Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-663 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-667 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-670 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      
978-671 A Billerica MA 9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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