You can follow the alphanumeric string down to R1b1b2, which is also known as R-M269. the old R1b. However, it is easier to use your browser to search for M269. I replace the first six alphanumerics with R-M269 for simplicity. This would make you haplogroup R-M269-a1a1. R-M269 is R1b1a2 at FTDNA.
Simply follow the string down the tree to find your terminal marker, which is M405/S21/U106. They aredifferent designations for the same marker. The letters designate the lab which discovered the marker and the number is simply the order of discovery at the lab.
Next, go to the FTDNA R-haplotree. Click on "R" and search for U106