Originally Posted by
MADPhil
I am in the same position and Three don't seem to expire the numbers very soon. As you say it is cheap to keep them alive anyway.
Any idea how long? I've had some last over a year and some expire in less than 6 months. And will texting (or calling) the UK keep them alive? I'm assuming so. What about just using some data? Will that do it? And what is the maximum period? 3 months? 4, 5?