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AS213736Zantan GmbH

GermanyRegistryRIPE NCC

As of 26th September 2026, AS213736 (Zantan GmbH), a network registered in Germany with RIPE NCC, originates 23 IPv4 prefixes covering 5.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 14,503rd-largest of the 79,516 networks we see originating IPv4, and the 510th-largest of 2,288 in Germany. It is seen behind 1 upstream network, most often AS139057 (Legend Dynasty Pte. Ltd.). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

23

IPv6 prefixes

1

IPv4 addresses

5.9k

IPv6 /64s

65.5k

Upstream graph

The networks AS213736 is seen behind, one and two hops out, drawn from real AS paths.

AS213736Toward the internet core
Upstream graph for AS213736: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS213736Zantan GmbHThis networkAS139057Legend Dynasty Pt…AS6453TATA Communicatio…AS21859Zenlayer Inc

Networks observed one and two hops upstream of AS213736 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS213736
NetworkCountryRelationshipPathsVantage pts
AS139057Legend Dynasty Pte. Ltd.SGPeer1,839145

Prefixes

The largest blocks AS213736 originates, widest first.

Largest prefixes originated by AS213736
PrefixAddressesVisibility
45.200.108.0/2425680/81
45.200.109.0/2425681/81
82.27.184.0/2425681/81
82.27.185.0/2425681/81
82.27.186.0/2425681/81
82.27.187.0/2425681/81
151.242.245.0/2425681/81
151.242.246.0/242562/81
151.242.247.0/2425681/81
151.242.249.0/2425681/81

Routing health

How AS213736'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%24
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more95.8%23
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%4.2%1

Prefix sizes

IPv4 — 23 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%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.