IPv4 prefix

91.201.20.0/23

IP Prefix (CIDR): 91.201.20.0/23
Subnet Mask: 255.255.254.0
Address Count: 512
IP Range: 91.201.20.0 - 91.201.21.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: ALFA TELECOM s.r.o.
Handle: ORG-ATs13-RIPE
Country: Czechia (CZ)
Address: Kloknerova 2249/9 148 00 Praha 4 CZECH REPUBLIC
Registry: RIPENCC
Registered Prefix: 91.201.20.0/23 (91.201.20.0 - 91.201.21.255)
Delegated Prefix: 91.201.20.0/22 (91.201.20.0 - 91.201.23.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
91.201.20.0/22	Covering	AS44546	ALFA TELECOM s.r.o.	Czechia (CZ)	91.201.20.0	91.201.23.255