VIP - Some SMS Traffic to China may be Blocked

Investigating
Update

Our SMS provider has confirmed that nearly 100% of all traffic to China is currently impacted. While they are actively working to resolve this, they are unable to provide an ETA as they depend on carriers to restore access.

Broadcom has been added to an expedited list of high-priority accounts to ensure prompt action to unblock our traffic once access has been restored.

Investigating

Broadcom teams have received an update from our SMS provider that increased operator-level blocking is affecting some SMS traffic to China (impacting messages both with and without registered signatures), and this began impacting some customers on August 26, 2026.

  • Status: The SMS provider's Carrier Relations team is working with local partners to restore traffic.
  • ETA: No estimated resolution time is currently available due to regulatory policies.

More information will be provided as it becomes available.

Began at:

Affected components