Area Code 641-561 located in BUFFALO CENTER, WINNEBAGO, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 561 City : BUFFALO CENTER County : WINNEBAGO State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19189 LATA (Local Access Transport Area) : 632 Rate Center : BUFFALOCTR ZIP Code Count : 178 ZIP Code Frequency : 97 ZIP Code : 50424 Other Information NPANXX : 641561 Switch CLLI (Common Language Location Identifier) : BFCTIAXRDS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WINNEBAGO COOP. TELEPHONE ASSN. - IOWA OCN (Operating Company Number) : 1337 Coverage Area Name : BUFFALO CENTER Latitude : 43.3894 Longitude : -93.9294 ‹ previous : 641-561 next › : 641-562 Telephone Number List 641-561-0000 ~ 641-561-9999