I realized that the forum shows only one carrier for Costa Rica, but there are 5 carriers actually. And the image from the one showed, it's not update. So, I'll like to help with the missing information hoping that you can updated.
Here's the Updated Image for the carrier "ICE": here
And here's the other 4 carrier's information:
Carrier's name: Tuyo Movil
Carrier's name: Full Movil
Carrier's Name: Claro
Carrier's name: Movistar
Hope it works.