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.

NPA: 785 [Rate centres in NPA 785] [Dial plan for NPA 785]

NXX: 438

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
785-438 A Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 0 Topeka KS TPKAKSJAXUX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 534   2008-08-21   
785-438 1 Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 2 Topeka KS TPKAKSQAPMD  516C AT&T CORP. 534   2015-03-09   
785-438 3 Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 4 Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 5 Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 6 Topeka KS TPKAKSFADS0  9533 SOUTHWESTERN BELL 534      
785-438 7 Topeka KS TPKAKSJAXUX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 534   2008-08-21   
785-438 8 Topeka KS TPKAKSJAXUX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 534   2008-07-05   
785-438 9 Topeka KS TPKAKSJAXUX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 534   2008-07-05   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.