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: GLWDIA08RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
712-399 4 Malvern IA 156C BTC, INC. - IA 644   2021-05-15   
712-409 4 Silver City IA 156C BTC, INC. - IA 644   2021-05-15   
712-512 4 Mineola IA 156C BTC, INC. - IA 644   2021-05-15   
712-622 A Pacific Junction IA 1344 PRAIRIE TEL. CO., INC. 644      
712-713 4 Council Bluffs IA 156C BTC, INC. - IA 644   2022-01-17   

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

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