On I35. These ring about 4 or 5 times. These 2 are located next to the men's bathroom in the hallway between the convenience store and McDonalds. The McDonalds has free WiFi, if you are ever passing through on I35 and have a of time, you might want to try calling these phones on Skype with the McDonalds Free WiFi.
(316)536-2759
Towanda KS
(620)735-4523
Mattfield Green, KS
There's also a service area in Emporia KS that I didn't stop that would probably also have a payphone next the men's room between the McDonalds and convenience store.
On I70. Here's some at a service area east of Topeka by bathrooms, this one is different than the last two, no WiFi here
(785)379-9236
(785)379-9524
