We’ve been tracking a missed connection between T-Mobile and Twitter for the past few days. If you’re a T-Mobile customer using Twitter in the United States over our shortcode 40404, you may see intermittent failures (both with sending and receiving updates). We’re working to resolve this issue as quickly as possible. Thank you for your patience!
Update (12/15 3p): We’re still working on this and believe it to be a technical issue happening between T-Mobile and the folks who help run our text messaging. At this time we do not believe it to be a policy issue (as has been speculated). We’re hoping for a resolution soon and will let you know when we know more.
Update (12/15 4:30p): We’ve received word this issue has been resolved. We’ll continue to watch closely and let you know if anything changes.
Update (12/16 4p): We’re still hearing reports of “service unavailable” messages for some folks. We’re staying on top of this, and will report back when it’s fully fixed. If you are still affected, please update from our mobile site: https://m.twitter.com/