Does anybody know what elementary file 2FE4 contain on SIM cards?

[infosecdj@infosec.exchange]

Does anybody know what elementary file 2FE4 contain on SIM cards? It doesn't look like it is described in any standards I've looked at, and its contents varies widely across cards. Maybe boost for reach?

#electronics #smartcards

[xilokar@mamot.fr]

@infosecdj

I'm quite sure pinging @LaF0rge on this subject is the closest way to have an answer

[infosecdj@infosec.exchange]

A couple samples:

8f3d2292ed824a20b8247f11c164d66d01012713492001270100002896130523007272
09b480d62be14be48cfa85cc3798729700023302012771601000000026141103005727
24be6a60efdb48d095dd288f8a025fc000083710001361801000002348130819003277
6dc7086e1c5a4af7bf5994981497cf76313736373737ffffffffffffffffffffffffff
87001290010001040000610573350078

[sonic2k@oldbytes.space]

@infosecdj
It's not described in EMV either, I just checked in case it was something related to financial interchange, so it's not that.