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: OLNYTXXADS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
940-873 6 Orth TX 2041 BRAZOS TEL. COOP., INC. 548      
940-873 7 Orth TX 2041 BRAZOS TEL. COOP., INC. 548      
940-873 9 Orth TX 2041 BRAZOS TEL. COOP., INC. 548      

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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