Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: DLLTTX01HMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
940-977 1 Denton TX 6529 T-MOBILE USA, INC. 552      
940-977 2 Denton TX 6529 T-MOBILE USA, INC. 552      
940-977 3 Denton TX 6529 T-MOBILE USA, INC. 552      
940-977 4 Denton TX 6529 T-MOBILE USA, INC. 552      
940-977 5 Denton TX 6529 T-MOBILE USA, INC. 552      
940-977 9 Denton TX 6529 T-MOBILE USA, INC. 552      
940-999 8 Denton TX 6529 T-MOBILE USA, INC. 552      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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