Area Code 507-278 located in AMBOY, BLUE EARTH, MN, more detail is as below. Place NPA (Numbering Plan Area) : 507 NXX (Local Number Prefix) : 278 City : AMBOY County : BLUE EARTH State : MN (Minnesota) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 27013 LATA (Local Access Transport Area) : 620 Rate Center : GOODTHUNDR ZIP Code Count : 14 ZIP Code Frequency : 2 ZIP Code : 56010 Other Information NPANXX : 507278 Switch CLLI (Common Language Location Identifier) : GDTHMNXGRS2 MSA CBSA (Core Based Statistical Area) : Mankato-North Mankato, MN MSA CBSA Code (Core Based Statistical Area) : 31860 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : MID-COMMUNICATIONS, INC. DBA HICKORYTECH OCN (Operating Company Number) : 1375 Coverage Area Name : GOOD THUNDER Latitude : 44.0054 Longitude : -94.0672 ‹ previous : 507-278 next › : 507-278 Telephone Number List 507-278-0000 ~ 507-278-9999