Interconnect SIP IPs migrate to 159.26.160.0/20 range

<p>In the second half of 2027, Twilio will update the SIP signaling IP addresses used for <a href="https://www.twilio.com/docs/voice/api/sip-interface"&gt;Programmable Voice SIP</a> and <a href="https://www.twilio.com/docs/sip-trunking"&gt;Elastic SIP Trunking</a> over <a href="https://www.twilio.com/docs/interconnect"&gt;Interconnect&lt;/a> in all regions. The <a href="https://www.twilio.com/docs/interconnect"&gt;Interconnect&lt;/a> signaling IPs, for both inbound and outbound SIP signaling over private connections, will move to the 159.26.160.0/20 range as part of infrastructure improvements for greater flexibility, reliability, and scalability.</p> <p>Customers using these products over <a href="https://www.twilio.com/docs/interconnect"&gt;Interconnect&lt;/a> will need to update their network firewalls to allowlist the new IP addresses before the cutover date. Depending on the specific Twilio solution in use, IP address configurations within that solution may also need to be updated.&nbsp;</p> <p>SIP FQDNs/hostnames, TLS certificates, public internet SIP signaling IPs, and Media IP address ranges aren’t affected by this migration.</p> <p>&nbsp;</p>