Reference Data Rate Center Directory CASTANA, IA Rate Center CASTANA — IA Data last updated: March 10, 2026 LATA 630 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 42.07359418589044, -95.90826294742138 Area Codes 712 Top Carriers Carrier OCN NXX Count WESTERN IOWA TEL. ASSN. 1334 1
