Summary
| Country |
 United States
|
| Domain | cerf.net |
| Size | 512 |
| Registry | ARIN |
| Network Name | NETBLK-CERFNET-CBLK2 |
Whois
American Registry for Internet Numbers NET199 (NET-199-0-0-0-0) 199.0.0.0 - 199.255.255.255
CERFnet NETBLK-CERFNET-CBLK2 (NET-199-105-0-0-1) 199.105.0.0 - 199.108.255.255
CIDR IP address subranges within 199.106.142.0/23 subnet
- 199.106.142.0/24
- 199.106.143.0/24