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.

Switch: CHFRMANORP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
978-244 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-250 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-256 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 0 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 1 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 2 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 3 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 4 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 5 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 7 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 8 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-367 9 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-497 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-967 A Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-967 2 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      
978-967 8 Lowell MA 9102 VERIZON NEW ENGLAND INC. 128      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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