Reference Data Rate Center Directory CRYSTAL LK, IA Rate Center CRYSTAL LK — IA Data last updated: March 10, 2026 LATA 632 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 43.22236745528102, -93.79110214001498 Area Codes 641 Top Carriers Carrier OCN NXX Count WINNEBAGO COOP. TEL. ASSN. - IA 1337 1
