cell phone cases

[CuriousCell]

I received some cell phone cases, but I don't know for which cell phones they are made for. All are made in China.
They have the following markings:

2BC 05326
31N 05144
284 04784
29Q 04922

Any help would be greatly appreciated.

Thanks,
HS

 

[Titillating]

Might help if you actually provided some pictures or descriptions to go by. Those sequences mean nothing as far as I can tell, most likely some kind of production number.