The watermark is noticeably more readable in the Facebook image I linked though, and it does say photography (even there it is somewhat blurred though, so assuming it was actually clear in the original source that copy is a few recompressions along the chain).
The dates of the other sources however are what really convinces me it’s not AI. After all, who was doing good quality photorealistic AI image generation in 2021?
Apart from family and my own number about the only one I can think of is the Reading Writing Hotline (1300 655506) due to the sheer amount of their radio ads I’ve heard over the years while driving around.
Even within family I’ve only got one left that actually works though - Dad hasn’t changed his mobile number since circa 2000 but Mum did at one point and I never remembered her new one.