Local Calling Guide

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Search area code/prefix (NPA/NXX)
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Marlin EACS, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
254-803 A MRLNTXMLRS0  9533 SOUTHWESTERN BELL 556      
254-803 0   6529 T-MOBILE USA, INC. 556   2021-09-21   
254-803 1   9533 SOUTHWESTERN BELL 556      
254-803 2   9533 SOUTHWESTERN BELL 556      
254-803 3   9533 SOUTHWESTERN BELL 556      
254-803 4   5562 METROPCS, INC. 556   2021-10-02   
254-803 5   9533 SOUTHWESTERN BELL 556      
254-803 6   145J TERRA NOVA TELECOM INC. 556   2021-09-28   
254-803 7   6529 T-MOBILE USA, INC. 556   2021-10-17   
254-803 8   5562 METROPCS, INC. 556   2021-10-02   
254-803 9   6529 T-MOBILE USA, INC. 556   2021-10-17   

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

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