IF you scan 135 now SES-22 you will see a few data transponder be broadcast as of this week also 129 Galaxy 34 they also have few data transponder on the C Band. As part of the satellites replacements
Well do this move your BUD to 135 and scan and you will see a few TP’s it hasn’t had any TP’s in yearsI don't think SES-22 is there yet. Real time satellite tracking for: SES-22
also, those transponders, if on SES-22, would be on the Alaska beam. http://frequencyplansatellites.altervista.org/SES/SES-22.pdf
I don't have footprint maps, not sure how wide the Alaks beam will be, and whether or not it will be receiveable in TX. My guess is that those data transponders are on AMC 4 or 8
this said, it could very well be that those are tests in preparation for using SES-22 once it gets there.
A quick test would be to check with an SDR if there's a beacon at 4197.5 MHz
Unfortunately 135 W is behind my neighbor's trees, so I can't check