My RTT from the midwestern US to AWS/Azure/GCP in Germany is less than that. I think your ISP has more blame than your distance to the nearest zone in NA.
Yes, you guys are entirely correct, something looks fishy with my ISP. I'll give them a call them tomorrow morning if it still looks like this.
Edit: Now resolved, pings (barely) over 50ms.
Most likely that latency comes from the link between your place and your ISP.
Hm, I guess I don't live anywhere near a data center. 1M+ North American city, but lowest ping to any AWS/GCE region is ~130ms.