URLs and IP address ranges for Microsoft 365 operated by 21Vianet

Applies To: Microsoft 365 operated by 21Vianet - Small Business Admin, Microsoft 365 operated by 21Vianet - Admin

Summary: The following endpoints (FQDNs, ports, URLs, IPv4, and IPv6 prefixes) apply to Microsoft 365 operated by 21 Vianet and are designed to deliver productivity services to organizations using only these plans.

Microsoft 365 endpoints: Worldwide (including GCC) | Microsoft 365 operated by 21 Vianet | Microsoft 365 U.S. Government DoD | Microsoft 365 U.S. Government GCC High |

Last updated: 12/01/2023 - RSS. Change Log subscription

Download: all required and optional destinations in one JSON formatted list.

Start with Managing Microsoft 365 endpoints to understand our recommendations for managing network connectivity using this data. 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. This allows for customers who don't yet have automated updates to complete their processes before new connectivity is required. Endpoints may also be updated during the month if needed to address support escalations, security incidents, or other immediate operational requirements. The data shown on this page below is all generated from the REST-based web services. If you're using a script or a network device to access this data, you should go to the Web service directly.

Endpoint data below lists requirements for connectivity from a user’s machine to Microsoft 365. It doesn't include network connections from Microsoft into a customer network, sometimes called hybrid or inbound network connections.

The endpoints are grouped into four service areas. The first three service areas can be independently selected for connectivity. The fourth service area is a common dependency (called Microsoft 365 Common and Office) and must always have network connectivity.

Data columns shown are:

  • ID: The ID number of the row, also known as an endpoint set. This ID is the same as is returned by the web service for the endpoint set.

  • Category: Shows whether the endpoint set is categorized as “Optimize”, “Allow”, or “Default”. You can read about these categories and guidance for management of them at https://aka.ms/pnc. This column also lists which endpoint sets are required to have network connectivity. For endpoint sets, which aren't required to have network connectivity, we provide notes in this field to indicate what functionality would be missing if the endpoint set is blocked. If you're excluding an entire service area, the endpoint sets listed as required don't require connectivity.

  • ER: This is Yes if the endpoint set is supported over Azure ExpressRoute with Microsoft 365 route prefixes. The BGP community that includes the route prefixes shown aligns with the service area listed. When ER is No, this means that ExpressRoute isn't supported for this endpoint set. However, it shouldn't be assumed that no routes are advertised for an endpoint set where ER is No.

  • Addresses: Lists the FQDNs or wildcard domain names and IP Address ranges for the endpoint set. Note that an IP Address range is in CIDR format and may include many individual IP Addresses in the specified network.

  • Ports: Lists the TCP or UDP ports that are combined with the Addresses to form the network endpoint. You may notice some duplication in IP Address ranges where there are different ports listed.

Exchange Online

ID Category ER Addresses Ports
1 Optimize
Required
No partner.outlook.cn
40.73.132.0/24, 40.73.164.128/25, 40.73.165.0/26, 42.159.40.0/24, 42.159.44.0/22, 42.159.163.128/25, 42.159.165.0/24, 42.159.172.0/22, 2406:e500:4010::/48, 2406:e500:4030::/53, 2406:e500:4030:800::/54, 2406:e500:4040::/53, 2406:e500:4040:800::/54, 2406:e500:4040:1000::/54, 2406:e500:4040:1400::/54, 2406:e500:4110::/48, 2406:e500:4210::/48, 2406:e500:4310::/48
TCP: 443, 80
2 Allow
Required
No *.protection.partner.outlook.cn
42.159.33.192/27, 42.159.36.0/24, 42.159.161.192/27, 42.159.164.0/24, 139.219.16.0/27, 139.219.17.0/24, 139.219.24.0/22, 139.219.145.0/27, 139.219.146.0/24, 139.219.156.0/22, 2406:e500:4420::/43, 2406:e500:4440::/43, 2406:e500:c020::/44, 2406:e500:c120::/44
TCP: 25, 443, 53, 80
12 Default
Required
No *.partner.outlook.cn, attachments.office365-net.cn TCP: 443, 80
20 Allow
Required
No *.partner.outlook.cn
40.73.132.0/24, 40.73.164.128/25, 40.73.165.0/26, 42.159.40.0/24, 42.159.44.0/22, 42.159.163.128/25, 42.159.165.0/24, 42.159.172.0/22, 2406:e500:4010::/48, 2406:e500:4030::/53, 2406:e500:4030:800::/54, 2406:e500:4040::/53, 2406:e500:4040:800::/54, 2406:e500:4040:1000::/54, 2406:e500:4040:1400::/54, 2406:e500:4110::/48, 2406:e500:4210::/48, 2406:e500:4310::/48
TCP: 587, 993, 995

SharePoint Online and OneDrive for Business

ID Category ER Addresses Ports
4 Allow
Required
No *.sharepoint.cn
40.73.129.0/24, 40.73.161.0/24, 42.159.34.0/27, 42.159.38.0/23, 42.159.162.0/27, 42.159.166.0/23, 2406:e500:4000:2::/63, 2406:e500:4101:2::/64
TCP: 443, 80
21 Default
Required
No *.wns.windows.com TCP: 443, 80

Skype for Business Online and Microsoft Teams

ID Category ER Addresses Ports
3 Optimize
Required
No 42.159.34.32/27, 42.159.34.64/27, 42.159.34.96/28, 42.159.162.32/27, 42.159.162.64/27, 42.159.162.96/28, 159.27.160.0/21, 2406:e500:4a00::/39 UDP: 3479, 3480, 3481, 3478
19 Allow
Required
No *.partner.lync.cn, *.teams.microsoftonline.cn, teams.microsoftonline.cn
40.72.124.128/28, 42.159.34.32/27, 42.159.34.64/27, 42.159.34.96/28, 42.159.162.32/27, 42.159.162.64/27, 42.159.162.96/28, 159.27.160.0/21, 2406:e500:4a00::/39
TCP: 443, 80

Microsoft 365 Common and Office Online

ID Category ER Addresses Ports
7 Allow
Required
No *.azure-mobile.cn, *.chinacloudapi.cn, *.chinacloudapp.cn, *.chinacloud-mobile.cn, *.chinacloudsites.cn, *.partner.microsoftonline-m.net.cn, *.partner.microsoftonline-m-i.net.cn, *.partner.microsoftonline-p.net.cn, *.partner.officewebapps.cn, *.windowsazure.cn, portal.partner.microsoftonline.cdnsvc.com, r4.partner.outlook.cn
23.236.126.0/24, 40.73.240.0/24, 40.73.242.0/24, 58.68.168.0/24, 112.25.33.0/24, 123.150.49.0/24, 125.65.247.0/24, 171.107.84.0/24, 180.210.232.0/24, 180.210.234.0/24, 209.177.86.0/24, 209.177.90.0/24, 209.177.94.0/24, 222.161.226.0/24, 2406:e500:4900::/48
TCP: 443, 80
8 Allow
Required
No *.onmschina.cn, *.partner.microsoftonline.net.cn, *.partner.microsoftonline-i.net.cn
101.28.252.0/24, 115.231.150.0/24, 123.235.32.0/24, 171.111.154.0/24, 175.6.10.0/24, 180.210.229.0/24, 211.90.28.0/24
TCP: 443, 80
9 Allow
Required
No *.partner.microsoftonline-p.cn
182.50.87.0/24
TCP: 443, 80
10 Allow
Required
No *.partner.microsoftonline.cn
103.9.8.0/22
TCP: 443, 80
11 Default
Required
No activation.sls.microsoft.com, crl.microsoft.com, odc.officeapps.live.com, officecdn.microsoft.com, officeclient.microsoft.com TCP: 443, 80
13 Default
Required
No *.msauth.cn, *.msauthimages.cn, *.msftauth.cn, *.msftauthimages.cn, login.microsoftonline.com TCP: 443, 80
15 Default
Required
No loki.office365.cn TCP: 443
16 Default
Required
No *.cdn.office.net, shellprod.msocdn.com TCP: 443
17 Allow
Required
No *.auth.microsoft.cn, login.partner.microsoftonline.cn, microsoftgraph.chinacloudapi.cn
40.72.70.0/23, 52.130.2.32/27, 52.130.3.64/27, 52.130.17.192/27, 52.130.18.32/27, 2406:e500:5500::/48
TCP: 443, 80
18 Default
Optional
Notes: If using Exchange Online, follow Allow category guidance for *.protection.partner.outlook.cn
No *.aadrm.cn, *.protection.partner.outlook.cn TCP: 443
22 Default
Required
No *.partner.office365.cn TCP: 443, 80
23 Default
Required
No *.microsoftonline.cn TCP: 443, 80