AS31246 — NETBOX-AS NETBOX Autonomous system

AS31246 announces 5 IPv4 prefixes covering 66,560 addresses and 3 IPv6 prefixes.

About this network

The AS handle NETBOX-AS is operated by O2 Czech Republic, a.s.

What it's used for

• The address space carries customer and infrastructure traffic, evidenced by reverse DNS entries such as ip4-nat-83-240-63-255.cust.nbox.cz and mpop-ostrava-jnpr-s7113-gw.mng.netbox.cz.
• The network announces 66560 IPv4 addresses across 5 prefixes and 3 IPv6 prefixes, while maintaining only 1 observed neighbour, a ratio indicative of an access or eyeball network rather than a transit provider.

Notable

• All registrants for the announced prefixes are listed as "5610-Tech-and-Admin; O2 Czech Republic, a.s.; Abuse-C Role", which aligns directly with the AS holder.
• The address inventory consists of five distinct IPv4 blocks, including 83.240.0.0/17 and 95.82.128.0/18, all registered under netnames beginning with CZ-CZNET.

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

Announced prefixes

• 46.39.160.0/19
• 83.240.0.0/17
• 95.82.128.0/18
• 185.51.240.0/22
• 213.155.224.0/19
• 2001:4cc8::/31
• 2a0a:cac0::/29
• 2a14:2040::/29

Upstream networks

• AS16246 O2 Czech Republic, a.s.

Adjacent networks

• AS16246 O2 Czech Republic, a.s.

Internet exchanges

• Peering.cz — Prague, Czech Republic