Endpoint-retirement bulletin · High confidence

Twilio retired seven legacy regional API domain patterns on 28 April 2026.

Applications, SDK configuration and network allowlists using the retired hostnames must move to supported Twilio API domains.

Scope: api.us1.twilio.com remains valid; the retired set covers ie1, au1, br1, de1, jp1, sg1 and us2.

Required action

Replace retired base URLs with api.twilio.com or supported edge-and-region configurations, update SDK initialization and revise DNS allowlists, proxies and firewall rules.

Sources

Twilio API domain migration guide
Twilio changelog