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: FNDYOH42DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
419-420 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-421 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-422 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-423 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-424 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-425 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-427 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-429 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-434 A Findlay OH 9321 OHIO BELL TEL CO 326      
419-672 A Findlay OH 9321 OHIO BELL TEL CO 326      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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