

Endpoints may also be updated during the month if needed to address support escalations, security incidents, or other immediate operational requirements. This lets customers who do not yet have automated updates to complete their processes before new connectivity is required. Endpoints data is updated as needed at the beginning of each month with new IP Addresses and URLs published 30 days in advance of being active. Start with Managing Office 365 endpoints to understand our recommendations for managing network connectivity using this data.

Office 365 endpoints: Worldwide (including GCC) | Office 365 operated by 21 Vianet | Office 365 U.S. The endpoints below should be reachable for customers using Office 365 U.S. Office 365 requires connectivity to the Internet.
