Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 830 [Rate centres in NPA 830] [Dial plan for NPA 830]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-437 A Cost TX COSTTXXARS0  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 3 Cost TX   903C ONVOY, LLC - TX 566   2023-01-05   
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, 29 Jan 2026 14:35:03 UTC

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