IG, page-3

I just spent 5 minutes looking. From what I can see on IG's site:

1. They don't make this information easily identifiable (no mention of own HIN or shared HIN I could find, even in the Terms and Conditions) but looks like they're single HIN (not own HIN).
2. There are a handful of direct questions in "IG Trading Support" on this topic from people looking to move platforms. Pretty easy to find these questions on their community pages.

Some people didn't even seem to understand that they didn't have their own HIN under IG