IPv4 prefix

205.57.16.0/21

IP Prefix (CIDR)

205.57.16.0/21

Subnet Mask

255.255.248.0

Address Count

2,048

IP Range

205.57.16.0 - 205.57.23.255

Subnet calculator

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Registered Owner

Owner

Navy Network Information Center (NNIC)

Handle

NNICN-1

Address

2465 GUADALCANAL ROAD BLDG 1265 VIRGINIA BEACH VA 23459 United States

Registry

ARIN

Registered Prefix

205.56.0.0/13 (205.56.0.0 - 205.63.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
205.57.16.0/21	Exact	AS5371	United States Department of Defense (DoD)	United States of America (US)	205.57.16.0	205.57.23.255