AS8075 · Prefix

40.77.177.0/24

Announced in the global routing table by AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation), as part of 40.76.0.0/14. Allocation: Administered by ARIN. Part of cloud provider Azure.

Reverse DNS naming one in every 8 addresses sampled

31 of 32 sampled addresses have reverse DNS, mostly named like nothing specific.

msnbot-40-77-177-1.search.msn.commsnbot-40-77-177-9.search.msn.commsnbot-40-77-177-17.search.msn.com

IPs checked on IP Judge datacenter / proxy IPs listed; residential and mobile only counted

Datacenter IP · 1

40.77.177.12

Check an IP in this range

Sources: RIPEstat (routing and allocation data), IP Judge reverse-DNS sampling and lookups.