Notice: Twilio SIP and Client Voice Media IP Pool Expansion (September 2019)

In Fall 2019, Twilio will be expanding our Media IP address ranges for the following regional gateways:

  • AU1 (Asia Pacific - Sydney)
  • BR1 (South America - Sao Paulo)
  • DE1 (Europe - Frankfurt)
  • JP1 (Asia Pacific - Tokyo)
  • SG1 (Asia Pacific - Singapore)

These Media IP changes will affect all of our SIP Trunking, SIP Interface, and Client products, including the following:

  • Elastic SIP Trunking
  • Programmable Voice SIP Interfaces
  • Programmable Voice Mobile SDKs
  • Twilio Client JS SDK

Users of these products MUST add the new Media IP ranges to their whitelist no later than Monday September 30, 2019 to avoid service disruption. Customers who do not whitelist these IPs may experience call audio issues.

New Media IP Ranges

The following IP ranges are being added for the corresponding regional gateway:

Region New IP Range CIDR Notation UDP Port Range
AU1 3.104.90.0 -
3.104.90.255
3.104.90.0/24 10,000 - 20,000
BR1 18.228.249.0 -
18.228.249.255
18.228.249.0/24 10,000 - 20,000
DE1 3.122.181.0 -
3.122.181.255
3.122.181.0/24 10,000 - 20,000
JP1 3.112.80.0 -
3.112.80.255
3.112.80.0/24 10,000 - 20,000
SG1 3.1.77.0 -
3.1.77.255
3.1.77.0/24 10,000 - 20,000

We recommend customers whitelist ALL of Twilio's signaling and media IP address ranges and ports on your firewall. This is important not only for users with phone numbers in different regions, but also for resiliency purposes.

For a full list of the existing regional IP ranges, as well as the newly announced expanded IP ranges, please see the following resources:

New Client and Mobile SDK Region - US West Coast

This Fall Twilio will also be launching a new US west-coast gateway for Twilio Client and Programmable Voice (mobile) SDKs - US2 (North America - Oregon):

Region IP Range CIDR Notation UDP Port Range
US2 54.244.51.0 - 54.244.51.255 54.244.51.0/24 10,000 - 20,000

This new region is scheduled to go live on November 20, 2019. We recommend Client and Mobile SDK users whitelist this new region.

For a full list of existing regional IP ranges, as well as the newly announced expanded IP ranges, please see Twilio Client Regions (Twilio Docs).

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