Yes, that is correct, I did have WiMax protection 4g which was nice, but that was 4 years ago. I no longer live there. Sorry I will update that now. I am currently in DC, 20010 on the west side of 16th street.
I called about a month ago to Sprint about the lack of "spark" 4g B41 coverage which I once had. They told me they would make a ticket and call me back in 2-3 business days. No such call was ever made. Sprint customer for 12 years.