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: BTRGLAGWXPZ

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
225-903 5 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-09-26   
225-903 6 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-09-26   
225-903 7 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-09-26   
225-903 8 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-09-26   
225-903 9 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-06-14   
225-935 7 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-12-01   
225-935 9 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-12-01   
225-952 4 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-12-17   
225-952 5 Baton Rouge LA 624H ONVOY SPECTRUM, LLC 492   2021-12-17   

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Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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