| IPv4 | 5.45.56.0/21 (5.45.56.0 - 5.45.63.255) | Tchéquie | * | * | 25/05/2012 00:00:00 | RIPENCC |
| IPv4 | 31.14.72.0/22 (31.14.72.0 - 31.14.75.255) | Tchéquie | * | * | 18/04/2011 00:00:00 | RIPENCC |
| IPv4 | 37.156.184.0/22 (37.156.184.0 - 37.156.187.255) | Tchéquie | * | * | 13/03/2012 00:00:00 | RIPENCC |
| IPv4 | 69.94.64.0/20 (69.94.64.0 - 69.94.79.255) | Tchéquie | * | * | 19/11/2003 00:00:00 | RIPENCC |
| IPv4 | 77.234.40.0/21 (77.234.40.0 - 77.234.47.255) | Tchéquie | * | * | 21/03/2012 00:00:00 | RIPENCC |
| IPv4 | 91.213.143.0/24 (91.213.143.0 - 91.213.143.255) | Tchéquie | * | * | 10/08/2009 00:00:00 | RIPENCC |
| IPv4 | 185.51.228.0/22 (185.51.228.0 - 185.51.231.255) | Tchéquie | * | * | 26/03/2014 00:00:00 | RIPENCC |
| IPv4 | 185.167.64.0/22 (185.167.64.0 - 185.167.67.255) | Tchéquie | * | * | 09/09/2016 00:00:00 | RIPENCC |
| IPv4 | 185.167.68.0/22 (185.167.68.0 - 185.167.71.255) | Tchéquie | * | * | 09/09/2016 00:00:00 | RIPENCC |
| IPv4 | 185.189.92.0/22 (185.189.92.0 - 185.189.95.255) | Tchéquie | * | * | 09/02/2017 00:00:00 | RIPENCC |
| IPv4 | 195.74.76.0/24 (195.74.76.0 - 195.74.76.255) | Tchéquie | * | * | 04/04/2011 00:00:00 | RIPENCC |
| IPv6 | 2001:67c:284::/48 (2001:67c:284:: - 2001:67c:284:ffff:ffff:ffff:ffff:ffff) | Tchéquie | * | Czech Republic / www.avast.com | 14/07/2010 00:00:00 | RIPENCC |
| IPv6 | 2a00:d040::/32 (2a00:d040:: - 2a00:d040:ffff:ffff:ffff:ffff:ffff:ffff) | Tchéquie | * | * | 30/03/2012 00:00:00 | RIPENCC |
| IPv6 | 2a0b:e180::/29 (2a0b:e180:: - 2a0b:e187:ffff:ffff:ffff:ffff:ffff:ffff) | Tchéquie | * | * | 09/02/2017 00:00:00 | RIPENCC |