SMS Delivery Failures to Turkey's Turkcell Network (286-01) from Unregistered Sender IDs

Incident Report for Twilio

Resolved

We have fully investigated the SMS delivery failures when sending to the Turkcell network in Turkey with an unregistered numeric or alphanumeric sender ID. Customers should use a pre-registered alphanumeric sender ID when sending SMS to Turkey to ensure delivery. Messages that are sent to Turkey with a pre-registered alphanumeric sender ID are fully operational and not impacted. Per our documentation for Turkey SMS guidelines, alphanumeric sender ID pre-registration is required to ensure successful SMS delivery towards Turkey. To pre-register your alphanumeric sender ID, please complete the form via https://twiliodoer.secure.force.com/SenderId or reach out to Twilio Support for further assistance. This incident has been resolved.

Posted Mar 22, 2021 - 07:00 PDT

Update

We are still experiencing delivery failures when sending messages from unregistered alphanumeric sender ID to Turkcell Network (286-01) in Turkey. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hour or as soon as more information becomes available.

Posted Mar 22, 2021 - 06:00 PDT

Investigating

We are experiencing delivery failures when sending messages to Turkcell Network (286-01) in Turkey. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

Posted Mar 22, 2021 - 05:01 PDT

This incident affected: CARRIER NETWORK (SMS, Europe).