Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Splendora EMS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-399 A SPLDTXSPDS0  9533 SOUTHWESTERN BELL 560      
281-399 0   9533 SOUTHWESTERN BELL 560      
281-399 1   9533 SOUTHWESTERN BELL 560      
281-399 2   9533 SOUTHWESTERN BELL 560      
281-399 3   318J COMCAST IP PHONE, LLC 560   2020-08-31   
281-399 4   903C ONVOY, LLC - TX 560   2014-10-21   
281-399 5   903C ONVOY, LLC - TX 560   2014-10-21   
281-399 6   7399 WESTEL, INC. - TX 560   2009-07-12   
281-399 7   318C CEBRIDGE TELECOM TX , L.P. - TX 560   2009-07-28   
281-399 8   9533 SOUTHWESTERN BELL 560      
281-399 9   9533 SOUTHWESTERN BELL 560      

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

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