Area Code 620-475 located in MADISON, GREENWOOD, KS, more detail is as below. Place NPA (Numbering Plan Area) : 620 NXX (Local Number Prefix) : 475 City : MADISON County : GREENWOOD State : KS (Kansas) NXX Use Type : Landline NXX Intro Version : 2001-10-31 FIPS (Federal Information Processing Standards) : 20073 LATA (Local Access Transport Area) : 532 Rate Center : OLPE ZIP Code Count : 17 ZIP Code Frequency : 4 ZIP Code : 66860 Other Information NPANXX : 620475 Switch CLLI (Common Language Location Identifier) : OLPEKSXADS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WHEAT STATE TELEPHONE, INC. OCN (Operating Company Number) : 1847 Coverage Area Name : OLPE Latitude : 38.2576 Longitude : -96.1670 ‹ previous : 620-474 next › : 620-475 Telephone Number List 620-475-0000 ~ 620-475-9999