IPv4 prefix

57.152.0.0/13

IP Prefix (CIDR)

57.152.0.0/13

Subnet Mask

255.248.0.0

Address Count

524,288

IP Range

57.152.0.0 - 57.159.255.255

Subnet calculator

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Registered Owner

Handle

MICROSOFT-MAINT

Country

United States of America (US)

Registry

RIPENCC

Registered Prefixes

57.152.0.0/16 (57.152.0.0 - 57.152.255.255)
57.153.0.0/16 (57.153.0.0 - 57.153.255.255)
57.154.0.0/16 (57.154.0.0 - 57.154.255.255)
57.155.0.0/16 (57.155.0.0 - 57.155.255.255)
57.156.0.0/16 (57.156.0.0 - 57.156.255.255)
57.157.0.0/16 (57.157.0.0 - 57.157.255.255)
57.158.0.0/16 (57.158.0.0 - 57.158.255.255)
57.159.0.0/16 (57.159.0.0 - 57.159.255.255)

Delegated Prefix

57.150.0.0/15 (57.150.0.0 - 57.151.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
57.152.0.0/13	Exact	AS8075	Microsoft Corporation	United States of America (US)	57.152.0.0	57.159.255.255