If you're heading away on holidays any time soon, then you're going to see a dramatic drop in roaming charges.
From today on, there will be a big reduction for people downloading data, like emails and pictures, with cuts of up to 75%.
Charges for calling home will also be cut by a significant amount and the charge for texting will be reduced by around 66%.
European users travelling will pay no more than an extra €0.05 per minute for calls, €0.02 for each text and €0.05 for every megabyte of data.
These figures will be the highest network operators will be allowed to pay their customers.
This is the latest move that will see the the total scrapping of all roaming charges in the EU from June 15, 2017.