Clarification regarding I2C address
Is it possible that I am referring to a very old information?


Yes, the date on the document is 1999 and the company is Philips Semiconductors, which is now known as NXP.

I2C addresses are allocated by NXP and they can allocate any address they wish. NXP does not publish I2C address list anymore, as it can be abused by companies not wanting to pay licencing fees. Therefore, any list you find, is not guaranteed to be up to date.