IPv4 prefix

103.63.104.0/21

IP Prefix (CIDR): 103.63.104.0/21
Subnet Mask: 255.255.248.0
Address Count: 2,048
IP Range: 103.63.104.0 - 103.63.111.255
Subnet calculator: Calculate subnet details

Registered Owners

Registration 1 of 2

Owner: Nguyen Duc Phong
Handle: NDP4-AP
Country: Viet Nam (VN)
Address: CMCBINHDUONG-VN
Registry: APNIC
Registered Prefix: 103.63.104.0/22 (103.63.104.0 - 103.63.107.255)

Registration 2 of 2

Handle: IRT-VNNIC-AP
Country: Viet Nam (VN)
Address: Ha Noi, VietNam
Registry: APNIC
Registered Prefix: 103.63.108.0/22 (103.63.108.0 - 103.63.111.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
103.63.104.0/21	Exact	AS45903	CMC Telecom Infrastructure Company	Viet Nam (VN)	103.63.104.0	103.63.111.255
103.63.108.0/23	More specific	AS38732	CMC Telecom Infrastructure Company	Viet Nam (VN)	103.63.108.0	103.63.109.255