Can you open signin.att.com from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
2021first tested
2 mo agolast tested
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Frequently asked questions
Is signin.att.com blocked in mainland China right now?
As of the last test on 2026-06-03, signin.att.com is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://signin.att.com · JSON