IPv4 prefix

204.19.64.0/21

IP Prefix (CIDR): 204.19.64.0/21
Subnet Mask: 255.255.248.0
Address Count: 2,048
IP Range: 204.19.64.0 - 204.19.71.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: Hydro-Quebec Research Institute (IREQ)
Handle: HRII-Z
Address: 1800 Montee Ste-Julie Varennes QC J3X-1S1 Canada
Registry: ARIN
Registered Prefix: 204.19.64.0/21 (204.19.64.0 - 204.19.71.255)
Delegated Prefix: 204.19.76.0/23 (204.19.76.0 - 204.19.77.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
204.19.64.0/21	Exact	AS376	Reseau d'Informations Scientifiques du Quebec (RISQ Inc.)	Canada (CA)	204.19.64.0	204.19.71.255