Just to break down how the other guys worked this out for you
Good chance it is LF ( 125kHz ) because you phone uses HF 13.56MHz via NFC
This is a misnomer, RFID is many things, It is RFID but there is no “standard” RFID as such,
There are many place in this forum where this is covered but @NiamhAstra improved one that I did to explain it, here
HID
Good chance we are talking 125kHz
I think there are some iClass HID that are HF, but realistically as @Locutus mentioned, you are pretty much at least in the market for the EM implants, and an HF for your business card.
My personal recommendation for you would be a NExT
https://dangerousthings.com/product/next/
For an LED, that is another discussion, depending on how you want to use it.
I would also recommend you get some more reading under your belt, faqs, info, and Wikis a great place to start.
which chip should I get.… (The clue is in the name)
BEGINNERS guide
Where to put it