That's a start. You have seen that No. 3 is Arb-Kdo (labour command) 281 of STALG VI G, so there were hundreds of smaller camps and labour commands which were part of STALAG VIG.
Here: http://www.tenhumber...4145/index.html we have about 85 camps, not all POW but also forced labour camps, some very small like the one at a dentist, only in Siegburg! I'm afraid it will be nearly impossible today to find out which of them and of so many other camps in the area were POW camps, some like Arb.-Kdo. 281 at Hoffnungsthal were used for both POW and forced labourers. Another Problem with lists like the linked one is that the names of the camps may be companies, stores, plants where the prisoners lived and had to work, others were only halls where they slept but had to work else where, and others were part of a Hospital like the rose garden or of the prison. Only few of this list are named as POW camp like POW camp 333 Ulrather Hof, Zellwolle and Lager Fleißig.
Another link: http://www.peter-zen...Langfassung.pdf
A document by Dr Peter Zenker, we mentioned him before. He has a Lager Kemp in Siegburg with POW in one of his lists.
Christoph