To help you stay informed of and comply with the latest regulatory requirements from carriers, this topic provides an overview of recent policy changes and will be updated promptly as new policies are announced. We recommend bookmarking this page and checking it regularly to keep your messaging compliant and prevent service disruptions.
Carrier | Effective date | Announcement |
China Unicom China Mobile China Telecom | April 27, 2026 | [April 27, 2026] Policy update: 'Launched app' signature source discontinued |
China Mobile | February 6, 2026 | [February 6, 2026] Longer signature registration timelines for live apps |
China Mobile | December 1, 2025 | [November 18, 2025] China Mobile's controls on redirection information in messages |
China Mobile | July 10, 2025 | China Mobile's controls on SMS template registration and referral information |
China Unicom | June 30, 2025 | China Unicom's controls on SMS template registration and referral information |
China Telecom | May 30, 2025 | Requirement for SMS template registration by China Telecom |
China Telecom | May 20, 2025 | China Telecom restrictions on SMS content containing URLs, IP addresses, and contact information |
China Unicom China Mobile China Telecom | April 1, 2025 | [April 8, 2025] [Important] Real-name registration and compliance check for SMS signatures |
China Unicom China Mobile China Telecom | March 1, 2025 | [February 26, 2025] Real-name registration for Short Message Service sub-port numbers |
China Unicom China Mobile China Telecom | February 1, 2024 | Notification to update qualification information for Domestic SMS [April 8, 2024] Second notice on providing additional qualification information for Domestic SMS users |
China Unicom China Mobile China Telecom | November 15, 2023 | [November 6, 2023] Notification on changes to the opt-out method for promotional messages in mainland China |
The above interception and control measures for traffic diversion messages are ongoing policies. No operator has announced a timeline for resumption or lifting of these restrictions. Specific implementation is subject to actual notices from provincial operators.
If you encounter issues with SMS, click this link for solutions to common problems, such as failed text message sending and signature compliance verification.