Area Code 620-673 located in ELK CITY, MONTGOMERY, KS, more detail is as below. Place NPA (Numbering Plan Area) : 620 NXX (Local Number Prefix) : 673 City : ELK CITY County : MONTGOMERY State : KS (Kansas) NXX Use Type : Landline NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 20125 LATA (Local Access Transport Area) : 532 Rate Center : HAVANA ZIP Code Count : 21 ZIP Code Frequency : 8 ZIP Code : 67344 Other Information NPANXX : 620673 Switch CLLI (Common Language Location Identifier) : HAVNKSXADS0 MSA CBSA (Core Based Statistical Area) : Coffeyville, KS MSA CBSA Code (Core Based Statistical Area) : 17700 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : TOTAH COMMUNICATIONS, INC. OCN (Operating Company Number) : 2030 Coverage Area Name : HAVANA Latitude : 37.0996 Longitude : -95.9430 ‹ previous : 620-673 next › : 620-673 Telephone Number List 620-673-0000 ~ 620-673-9999