CIDR 89.190.40.0/21
CIDR:
89.190.40.0/21
ASN:
AS Number: 12570
AS Description: ITSELF - O2 Czech Republic, a.s., CZ
AS Description: ITSELF - O2 Czech Republic, a.s., CZ
Network Address:
CIDR Size:
89.190.40.0/21 consists of 2'097'152 networks, each of which can hold 2'048 hosts.