subnet.im

AS216006Vojtech Smrz

CzechiaRegistryRIPE NCC

As of 26th September 2026, AS216006 (Vojtech Smrz), a network registered in Czechia with RIPE NCC, originates 5 IPv4 prefixes covering 1.3k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 33,367th-largest of the 79,516 networks we see originating IPv4, and the 285th-largest of 574 in Czechia. It is seen behind 4 upstream networks, most often AS62403 (PletX GmbH) and AS16019 (Vodafone Czech Republic a.s.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

2

IPv4 addresses

1.3k

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: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS216006Vojtech SmrzThis networkAS6939Hurricane Electri…AS16019Vodafone Czech Re…AS30823aurologic GmbHAS62403PletX GmbHAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1273Vodafone Group PLCAS1299Arelion (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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS216006
NetworkCountryRelationshipPathsVantage pts
AS62403PletX GmbHDEPeer24381
AS16019Vodafone Czech Republic a.s.CZPeer143143
AS30823aurologic GmbHDEPeer8181
AS6939Hurricane Electric LLCUSPeer6363

Prefixes

The largest blocks AS216006 originates, widest first.

Largest prefixes originated by AS216006
PrefixAddressesVisibility
13.143.236.0/2425681/81
31.56.46.0/2425681/81
82.153.113.0/2425681/81
82.153.116.0/2425681/81
185.229.223.0/2425680/81
2a0f:6284:500::/441M × /6463/64
2a06:9801:c0::/4865.5k × /6463/64

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

  • Valid100.0%7
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%7
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 2 prefixes

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

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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