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: TPKAKSJAXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
785-338 A Topeka KS 7593 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 534      
785-352 A Rossville KS 7593 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 534      
785-646 A Topeka KS 7593 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 534      

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

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