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: DYTNOH2222E

Remotes:

Switch Switch name Switch type
MONROH53RS1  MONROE  5ER 
TRENOH98RS1  TRENTON  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
937-356 A Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 0 Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 1 Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 2 Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 4 Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 5 Dayton OH 9321 OHIO BELL TEL CO 328      
937-356 7 Dayton OH 9321 OHIO BELL TEL CO 328      
937-455 A Dayton OH 9321 OHIO BELL TEL CO 328      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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