Weird, that's an 88.3 jazz outlet from Iowa.
Some kind of glitch, may correct itself.
When I traveled to Pittsburgh I used my NextRadio app to hear the Pirates game I attended and it was tuned to KDKA-FM "the Fan" 93.7...but when I got home and turned to WEEI-FM the display still said KDKA-FM The Fan.
I've seen many RDS radios get erroneous call letters like that if the reception is marginal. It will display that there is an RDS, but not decode it correctly.
Some stations have incorrect pi codes and ut has to do with traffic data.. ive seen the wrong pi codes show up on my sangean hdt1