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: BSTPMALLOMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
978-917 8 Sudbury MA 073H TELNYX LLC 128   2017-04-28   
978-926 9 Tyngsboro MA 073H TELNYX LLC 128   2017-05-04   
978-949 0 Manchester MA 073H TELNYX LLC 128   2017-05-22   
978-954 0 Lowell MA 073H TELNYX LLC 128   2017-03-10   
978-971 9 Haverhill MA 073H TELNYX LLC 128   2017-04-19   
978-981 8 Salem MA 073H TELNYX LLC 128   2017-04-27   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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