Welcome!
Please start by reading this excellent page compiled by MikeH. This page leads to more information, including the up to date 1M to 20M SoB.dat file.
Sieve ranges are p(rime) values not n values. The Primes in your reserved sieve range are checked to see if they divide k*2^n+1 for any one of the 11k and all n between 1M and 20M. There is another effort finishing up the lower n values between 1K and 1M, but this is nearly at the point of diminishing returns. PM me if you want more information. I do not want to confuse the issue, or take away from the main sieving effort.
While the sieve effort is for all n values, the P-1 factoring effort is for n values just ahead of the PRP tests (current n value). Please see the factoring sub forum for more information and/or this excellent site by H C Grove. The P-1 ranges are n values not p values. The k n pairs in your reserved P-1 range are checked to see if you can find a prime p that divides k*2^n+1.
Mike H's stats show 12 K because there were 12 Ks when the sieving effort became public. Prior to that Louie and Dave did all the sieving. The sob.dat file has 11 Ks and is up to date. The SoB.txt file is just there for information purposes.
You will note that the PRP stat pages still show all 17 Ks, even though 6 primes have been found, and tests are only being handed out for the current 11 Ks.
Do not confuse the historical information with the current information. The history (stats) show all that we have done, and all that we are doing. That is what history is all about.