Area Code 563-686 located in ZWINGLE, DUBUQUE, IA, more detail is as below. Place NPA (Numbering Plan Area) : 563 NXX (Local Number Prefix) : 686 City : ZWINGLE County : DUBUQUE State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 19061 LATA (Local Access Transport Area) : 634 Rate Center : OTTERCREEK ZIP Code Count : 101 ZIP Code Frequency : 62 ZIP Code : 52079 Other Information NPANXX : 563686 County Population : 0 Switch CLLI (Common Language Location Identifier) : OTCKIAXODS0 MSA CBSA (Core Based Statistical Area) : Dubuque, IA MSA CBSA Code (Core Based Statistical Area) : 20220 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CASCADE COMMUNICATIONS COMPANY OCN (Operating Company Number) : 1118 Coverage Area Name : OTTER CREEK Latitude : 42.2392 Longitude : -90.6877 ‹ previous : 563-686 next › : 563-687 Telephone Number List 563-686-0000 ~ 563-686-9999