| Business | Phone |
| Kdms 1904 W Hillsboro St, El Dorado 71730 | (870) 863-5121 |
| Kkdu Radio 1904 W Hillsboro St, El Dorado 71730 | (870) 875-1108 |
| Kkol 100 E Peach St, El Dorado 71730 | (870) 863-5565 |
| Kmlk 2525 N West Ave, El Dorado 71730 | (870) 875-1015 |
| Kmlk 4360 Junction City Hwy, El Dorado 71730 | (870) 875-1757 |
| Noalmark Broadcasting Corp 202 W 19th St, El Dorado 71730 | (870) 862-7777 |
| South Ark Amateur Radio Club 460 W Oak St, El Dorado 71730 | (870) 863-4931 |