Office 365 URL and IP Address Ranges for Office 365 Dedicated/ITAR (vNext)


Assume that your organization uses Office 365 dedicated/ITAR (vNext), and that it also restricts computers on the network from connecting to the Internet. In this situation, you must include a list of endpoints (FQDNS, ports, URLs, and IPv4 and IPv6 address ranges) in your outbound allow lists to make sure that your computers can successfully use Office 365 dedicated/ITAR (vNext).


We publish all changes to the FQDNs, ports, URLs, and IPv4 and IPv6 address ranges in one central location:

We also recommend that to subscribe to the RSS feed to stay up-to-date about any changes to the list that occur.

Article ID: 3187066 - Last Review: Aug 21, 2016 - Revision: 1

Microsoft Business Productivity Online Dedicated, Microsoft Business Productivity Online Suite Federal