IPv4 prefix

40.64.0.0/13

IP Prefix (CIDR): 40.64.0.0/13
Subnet Mask: 255.248.0.0
Address Count: 524,288
IP Range: 40.64.0.0 - 40.71.255.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: Microsoft Corporation
Handle: MSFT
Address: One Microsoft Way Redmond WA 98052 United States
Registry: ARIN
Registered Prefix: 40.64.0.0/13 (40.64.0.0 - 40.71.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
40.64.0.0/13	Exact	AS8075	Microsoft Corporation	United States of America (US)	40.64.0.0	40.71.255.255
40.65.67.0/24	More specific	AS8069	Microsoft Corporation	United States of America (US)	40.65.67.0	40.65.67.255