IPv4 prefix

203.77.40.0/21

IP Prefix (CIDR): 203.77.40.0/21
Subnet Mask: 255.255.248.0
Address Count: 2,048
IP Range: 203.77.40.0 - 203.77.47.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: TFN-NET
Country: Taiwan (Province of China) (TW)
Registry: TWNIC
Registered Prefix: 203.77.32.0/19 (203.77.32.0 - 203.77.63.255)
Delegated Prefix: 203.77.32.0/20 (203.77.32.0 - 203.77.47.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
203.77.40.0/21	Exact	AS24165	UNION BROADBAND NETWORK	Taiwan (Province of China) (TW)	203.77.40.0	203.77.47.255