There has been an overwhelming amount of requests for a limited number of places. Apologies for any inconvenience that this may cause. After months of testing with tens of thousands of mobile guinea pigs, T- Mobile today announced a May 31 debut for Digits, a new technology. @spin what's the number to text??? Listening now and you haven't mentioned it either time!! 1 reply 0 retweets 0 likes. Reply. 1. Retweet.