IPv4 prefix

209.166.16.0/21

IP Prefix (CIDR): 209.166.16.0/21
Subnet Mask: 255.255.248.0
Address Count: 2,048
IP Range: 209.166.16.0 - 209.166.23.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: Private Customer
Handle: C11492611
Address: Private Residence Arlington VA 22203 United States
Registry: ARIN
Registered Prefix: 209.166.16.0/23 (209.166.16.0 - 209.166.17.255)
Delegated Prefix: 209.166.0.0/18 (209.166.0.0 - 209.166.63.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
209.166.16.0/21	Exact	AS3320	Deutsche Telekom AG	Germany (DE)	209.166.16.0	209.166.23.255