1640 AM

The following radio stations broadcast on AM frequency 1640 kHz: 1640 AM is a Regional broadcast frequency.^[1]

Argentina

All stations operate with 10 kW during the daytime and are Class B stations.

Call sign	City of license	Facility	Nighttime power (kW)	Transmitter coordinates
KBJA	Sandy, Utah	87119	1	40°42′47″N 111°55′53″W / 40.713056°N 111.931389°W / 40.713056; -111.931389
KDIA	Vallejo, California	87108	10	37°53′44″N 122°19′27″W / 37.895556°N 122.324167°W / 37.895556; -122.324167 (KDIA - 10 kW daytime) (daytime) 38°08′03″N 122°25′32″W / 38.134167°N 122.425556°W / 38.134167; -122.425556 (KDIA - 10 kW nighttime) (nighttime)
KDZR	Lake Oswego, Oregon	86618	1	45°27′14″N 122°32′47″W / 45.453889°N 122.546389°W / 45.453889; -122.546389
KZLS	Enid, Oklahoma	87168	1	36°06′55″N 97°45′23″W / 36.115278°N 97.756389°W / 36.115278; -97.756389
WSJP	Sussex, Wisconsin	87121	1	43°04′38″N 88°11′32″W / 43.077222°N 88.192222°W / 43.077222; -88.192222
WTNI	Biloxi, Mississippi	87159	1	30°28′27″N 88°51′23″W / 30.474167°N 88.856389°W / 30.474167; -88.856389

Map all coordinates using OpenStreetMap

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^ "AM Station Classes, and Clear, Regional, and Local Channels". Federal Communications Commission. 2015-12-11. Retrieved 2020-12-15.