All Products
Search
Document Center

Short Message Service:Policy overview

Last Updated:Nov 18, 2025

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 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