If you are on an up to 16 or up to 20 or up to 24 Meg package with EE you are on their ADSL2+ range.
Confirmed by only having a Brightbox to connect to the phone line.
If you are on an up to 40 or up to 80 product you are on their fibre product.
Confirmed by having a white Openreach modem and a Bright box connected to the phone line.