Local Calling Guide

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NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 920

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-920 A Fort Worth TX FTWOTXWARPA  9533 SOUTHWESTERN BELL 552      
817-920 0 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-920 1 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-920 2 Fort Worth TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-02-21   
817-920 3 Fort Worth TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-02-21   
817-920 4 Fort Worth TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2019-02-21   
817-920 5 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-920 6 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-920 7 Fort Worth TX   9533 SOUTHWESTERN BELL 552      
817-920 8 Fort Worth TX   515J IP HORIZON LLC 552   2018-12-10   
817-920 9 Fort Worth TX   9533 SOUTHWESTERN BELL 552      

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

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