CERT/CSIRT

Proud binárních dat

O2 Czech Republic a.s. is a ISP/NSP in Czech Republic, operating it's very own fiber optical infrastructure over the country. It is providing services also to customers in Austria and Slovakia

Nej.cz CERT/CSIRT team NEJ.CZ-CSIRT is responsible for security incidents regarding the following:

ASN: 12570 and 16246

IPv6 prefixes:
2001:4ba8::/29
2a00:d480::/32
2a02:350::/29

IPv4 prefixes:
80.78.144.0/20
88.83.224.0/19
89.190.32.0/21
89.190.40.0/21
89.190.48.0/20
109.105.32.0/19
185.8.188.0/22
212.4.128.0/19
212.96.160.0/19
213.211.32.0/19
77.87.232.0/21
78.108.144.0/21
78.108.152.0/21
82.150.160.0/19
86.63.192.0/19
91.197.116.0/22
92.240.160.0/19
94.74.192.0/18
178.17.96.0/20
188.175.0.0/16
213.180.32.0/19

and domains hosted by our nameservers:
212.96.160.1, 212.96.161.2, 81.200.48.11, 81.200.48.12

Operation hours:

Mo - Fri 9 - 17 GMT+1/GMT+2

Contact:

email: csirt@itself.cz (primary contact)
phone: +420 533 383 383 (24/7 contact for emergency issues only)
PGP Key ID: 5801139D
PGP fingerprint: 5F62 6E06 98F1 C2D2 E8FC 3D78 A1E9 6E44 5801 139D