AS207945 — CNI CNI Group s.r.o.

AS207945 announces 3 IPv4 prefixes covering 2,304 addresses and 1 IPv6 prefixes.

About this network

The AS handle CNI is held by CNI Group s.r.o.

What it's used for

• The address space carries residential and business internet access, evidenced by reverse DNS entries such as vip-internet.cz, 1000g.cz, and ceskaoptickasit.cz.
• The network announces 2304 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.
• Traffic from this AS consists of subscriber internet access, including fibre-to-the-home services, as indicated by the 1000g (1 Gbps) and vip-internet domain suffixes in the reverse DNS records.

Notable

• Registrants for the two largest prefixes (185.183.72.0/22 and 194.63.152.0/22) are listed as CNI Group s.r.o., matching the AS holder, while the smaller prefix 78.156.140.0/24 is registered to ABUSE-C OptoNet Communication.
• The address inventory is composed of three distinct IPv4 blocks, with the largest being a /22 range, and a single IPv6 /29 prefix.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 78.156.140.0/24
• 185.183.72.0/22
• 194.63.152.0/22
• 2a0f:6b80::/29

Upstream networks

• AS43542 OptoNet Communication, spol. s.r.o.

Adjacent networks

• AS43542 OptoNet Communication, spol. s.r.o.

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-GTSCZ-CUST, AS-OPTONET-TRANSIT.