Truphone 
My Truphone app is available in 123 countries. The actual price of data plans might differ slightly depending on the currency applied.
Official Website
Promo / Coupon code
GET CREDIT
ESIMDB10
GUERNSEY Also Covered By
23 data plans offered
3 data plans offered
28 data plans offered
10 data plans offered
5 data plans offered
12 data plans offered
1 data plans offered
13 data plans offered
18 data plans offered
6 data plans offered