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.
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Switch: ALTOTXXORS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
936-858 A Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 0 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 1 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 2 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 3 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 4 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 5 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 7 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-858 9 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-879 A Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      
936-879 0 Alto TX 2109 CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 560      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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