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: SPFDOH32DS1

Remotes:

Switch Switch name Switch type
PTCHOH26RS2  PITCHIN  DLU 
SCTNOH46RS2  SOUTH CHARLESTON  DLU 
SVINOH56RS2  SOUTH VIENNA  DLU 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-322 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-323 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-324 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-325 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-327 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-328 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-505 A Springfield OH 9321 OHIO BELL TEL CO 328      
937-525 A Springfield OH 9321 OHIO BELL TEL CO 328      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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