Life / Polish mobile number: Which company / operator? [23]

Thank you very much everybody!!! :)

Life / Polish mobile number: Which company / operator? [23]

I know the first numbers should tell me, but I have no idea which company these numbers are. All I know are the operators, as per wikipedia:

Orange
Plus GSM
Era
Play

Ok, I got some clue, could this be Heya by Era?

Life / Polish mobile number: Which company / operator? [23]

Merged: Polish mobile number: Which company?

Hello Everybody

I have a question for you.

I have a Polish mobile phone number that I need to find out to which company it belongs so I can buy some prepaid card for it. It is not on contract, prepaid.

The phone number goes like this: +4888831...

Can you find out to which company it belongs or is it not possible?

Thank you very much.

PS: I would be glad if somebody could help me buy a card too for this company.