subnet.im

AS216006Vojtech Smrz

CzechiaRegistryRIPE NCC

As of 11th November 2026, AS216006 (Vojtech Smrz), a network registered in Czechia with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 49,320th-largest of the 80,747 networks we see originating IPv4, and the 454th-largest of 576 in Czechia. It is seen behind 3 upstream networks, most often AS30823 (aurologic GmbH) and AS16019 (Vodafone Czech Republic a.s.). 75% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 50% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

2

IPv4 addresses

512

IPv6 /64s

1.1M

Upstream graph

The networks AS216006 is seen behind, one and two hops out, drawn from real AS paths.

AS216006Toward the internet core
Upstream graph for AS216006: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS216006Vojtech SmrzThis networkAS16019Vodafone Czech Re…AS30823aurologic GmbHAS62403PletX GmbHAS1273Vodafone Group PLCAS6939Hurricane Electri…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6453TATA Communicatio…AS49581Ferdinand Zink tr…

Networks observed one and two hops upstream of AS216006 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

7

adjacent networks

Upstreams
343%
Peers
457%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS216006
NetworkCountryRelationshipPathsVantage pts
AS30823aurologic GmbHDEPeer137137
AS16019Vodafone Czech Republic a.s.CZPeer1919
AS62403PletX GmbHDEPeer11

Prefixes

The largest blocks AS216006 originates, widest first.

Largest prefixes originated by AS216006
PrefixAddressesVisibility
13.143.236.0/242561/76
185.229.223.0/2425676/76
2a0f:6284:500::/441M × /6419/63
2a06:9801:c0::/4865.5k × /6461/63

Routing health

How AS216006's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid75.0%3
  • Invalid25.0%1
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more50.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%50.0%2

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 2 prefixes

  • /441M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

  • Announced2a06:9801:c0::/485th Nov 2026
  • Withdrawn2a06:9801:c0::/482nd Nov 2026
  • Announced13.143.236.0/2429th Oct 2026
  • Withdrawn31.56.46.0/2426th Oct 2026
  • Withdrawn82.153.116.0/2423rd Oct 2026
  • Withdrawn13.143.236.0/2422nd Oct 2026
  • Withdrawn82.153.113.0/2414th Oct 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.