A2P 10DLC Campaign Vetting Delays: We are experiencing delays while vetting 10DLC campaigns. Our third party is reviewing campaigns manually, and due to the high volume of requests, a queue has built up. Campaign reviews are expected to take longer. Twilio is working with the provider to help expedite this process. New details will be shared in our incident report as soon they become available.

Where is Twilio Narrowband supported?

At this time, Twilio Narrowband SIM cards only work on T-mobile's Narrowband network in the United States. It is not currently supported internationally.

To see where in the US Narrowband is supported, see T-mobile's latest Narrowband coverage map (T-mobile.com).

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