Reference Data Rate Center Directory MT AUBURN, IA Rate Center MT AUBURN — IA Data last updated: March 10, 2026 LATA 635 State IA Area Codes 1 Exchanges (NXX) 1 Carriers 1 Coordinates 42.25772204173887, -92.09188695517831 Area Codes 319 Top Carriers Carrier OCN NXX Count LA PORTE CITY TEL. CO. 1220 1
