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: COSTTXXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
830-437 A Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 0 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 2 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 4 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 5 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 6 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 7 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 8 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      
830-437 9 Cost TX 2083 GUADALUPE VALLEY TEL. COOP., INC. 566      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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