IPv4 prefix

4.243.0.0/23

IP Prefix (CIDR): 4.243.0.0/23
Subnet Mask: 255.255.254.0
Address Count: 512
IP Range: 4.243.0.0 - 4.243.1.255
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: 4.240.0.0/12 (4.240.0.0 - 4.255.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
4.192.0.0/10	Covering	AS8075	Microsoft Corporation	United States of America (US)	4.192.0.0	4.255.255.255