Area Code 712-982 located in HAWARDEN, SIOUX, IA, more detail is as below. Place NPA (Numbering Plan Area) : 712 NXX (Local Number Prefix) : 982 City : HAWARDEN County : SIOUX State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 19167 LATA (Local Access Transport Area) : 630 Rate Center : EASTHUDSON ZIP Code Count : 30 ZIP Code Frequency : 73 ZIP Code : 51023 Other Information NPANXX : 712982 Switch CLLI (Common Language Location Identifier) : HDSNSDXA982 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : ALLIANCE COMMUNICATIONS COOPERATIVE, INC. (BALTIC) OCN (Operating Company Number) : 1642 Coverage Area Name : ROCK VALLEY Latitude : 43.1292 Longitude : -96.4512 ‹ previous : 712-982 next › : 712-986 Telephone Number List 712-982-0000 ~ 712-982-9999