Area Code 712-963 located in ROCK RAPIDS, LYON, IA, more detail is as below. Place NPA (Numbering Plan Area) : 712 NXX (Local Number Prefix) : 963 City : ROCK RAPIDS County : LYON State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 19119 LATA (Local Access Transport Area) : 620 Rate Center : MIDLAND ZIP Code Count : 12 ZIP Code Frequency : 38 ZIP Code : 51246 Other Information NPANXX : 712963 Switch CLLI (Common Language Location Identifier) : ELWOMNXERS9 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS OF MINNESOTA, INC. OCN (Operating Company Number) : 1367 Coverage Area Name : LITTLE ROCK Latitude : 43.5175 Longitude : -96.0148 ‹ previous : 712-957 next › : 712-963 Telephone Number List 712-963-0000 ~ 712-963-9999