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.

NPA: 409 [Rate centres in NPA 409] [Dial plan for NPA 409]

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
409-971 A Sabine Pass TX PTARTXYUDS0  9533 SOUTHWESTERN BELL 562      
409-971 0 Sabine Pass TX   145J TERRA NOVA TELECOM INC. 562   2022-04-12   
409-971 1 Sabine Pass TX BUMTTXTEX8X  903C ONVOY, LLC - TX 562   2021-07-02   
409-971 2 Sabine Pass TX PTARTXYUDS0  9533 SOUTHWESTERN BELL 562      
409-971 3 Sabine Pass TX BUMTTXTEXUX  624H ONVOY SPECTRUM, LLC 562   2021-07-03   
409-971 4 Sabine Pass TX PTARTXYUDS0  9533 SOUTHWESTERN BELL 562      
409-971 6 Sabine Pass TX PTARTXYUDS0  9533 SOUTHWESTERN BELL 562   2012-12-23   
409-971 7 Sabine Pass TX BUMTTXTEX8X  903C ONVOY, LLC - TX 562   2021-09-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.