Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 281 [Rate centres in NPA 281] [Dial plan for NPA 281]

NXX: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
281-497 A Houston Suburban TX HSTNTXBUDS0  9533 SOUTHWESTERN BELL 560      
281-497 0 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 1 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 2 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 3 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 4 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 5 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 6 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 7 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 8 Houston Suburban TX   9533 SOUTHWESTERN BELL 560      
281-497 9 Houston Suburban TX   624H ONVOY SPECTRUM, LLC 560   2021-10-25   

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

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