Area Code 712-207 located in SHELBY, SHELBY, IA, more detail is as below. Place NPA (Numbering Plan Area) : 712 NXX (Local Number Prefix) : 207 City : SHELBY County : SHELBY State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2004-12-13 FIPS (Federal Information Processing Standards) : 19165 LATA (Local Access Transport Area) : 644 Rate Center : SHELBY ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 51570 Other Information NPANXX : 712207 Switch CLLI (Common Language Location Identifier) : AVOCIAXO2MD Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WALNUT TELEPHONE COMPANY, INC. - IA OCN (Operating Company Number) : 774B Coverage Area Name : SHELBY Latitude : 41.5164 Longitude : -95.4447 ‹ previous : 712-204 next › : 712-208 Telephone Number List 712-207-0000 ~ 712-207-9999