Area Code 573-437 located in BLAND, GASCONADE, MO, more detail is as below. Place NPA (Numbering Plan Area) : 573 NXX (Local Number Prefix) : 437 City : BLAND County : GASCONADE State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 1996-01-10 FIPS (Federal Information Processing Standards) : 29073 LATA (Local Access Transport Area) : 520 Rate Center : OWENSVILLE ZIP Code Count : 68 ZIP Code Frequency : 3 ZIP Code : 65014 Other Information NPANXX : 573437 County Population : 0 Switch CLLI (Common Language Location Identifier) : OWVLMOXARS1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FIDELITY TELEPHONE CO. OCN (Operating Company Number) : 1882 Coverage Area Name : OWENSVILLE Latitude : 38.3496 Longitude : -91.4999 ‹ previous : 573-436 next › : 573-437 Telephone Number List 573-437-0000 ~ 573-437-9999