Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SRLKTXSRRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
409-287 A Sour Lake TX 9533 SOUTHWESTERN BELL 562      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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