I had an old sim that I have not used in years, but still works -
On November 20, 2013, we will no longer be excepting top-up's for any sim cards. Then on December 31, 2013. The 07mobile website will close down.
We will soon give notice on how you can port / move your number to a different operator.
http://07mobile.com/ma/page.asp?pgid=174&pgsid=34
Phones: Xiaomi Mi Mix 2, Samsung Galaxy A50, ASUS zenfone 3,
Sim cards: AT&T (Contract), 3 UK, Piranha Mobile