ACTION REQUIRED: Upcoming changes to Twilio Voice Public Media IP Addresses

On 10 October 2023 Twilio will be updating the public media IPs and port ranges for SIP and Voice SDK calls in all regions. We are moving from a per-region IP range allocation to a single global range: 168.86.128.0/18. Additionally, we will be expanding the media port range from 10000-20000 to 10000-60000.

Old IP and port ranges will no longer accept or send traffic after 10 October 2023 but will need to be kept open in your infrastructure until that time. We are making this change to provide flexibility, reliability, and scalability for the next ten years. You will need to update your network infrastructure to ensure that you have allowlisted the full IP and port ranges before 10 October 2023. Failure to do so will result in one-way audio and dropped calls.

Impacted Edge locations include: Sydney (AU1), Sao Paulo (BR1), Dublin (IE1), Frankfurt (DE1), Tokyo (JP1), Singapore (SG1), Ashburn (US1), Umatilla (US2).

Twilio Interconnect connections are excluded from these initial changes, but will be migrated separately in the future.