subnet.im

AS57358IMT-Systems GmbH

GermanyRegistryRIPE NCC

As of 10th November 2026, AS57358 (IMT-Systems GmbH), a network registered in Germany with RIPE NCC, originates 2 IPv4 prefixes covering 768 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 45,664th-largest of the 80,733 networks we see originating IPv4, and the 1,458th-largest of 2,330 in Germany. It is seen behind 2 upstream networks, most often AS12306 (Plus.line AG) and AS174 (Cogent Communications, LLC). 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

2

IPv6 prefixes

3

IPv4 addresses

768

IPv6 /64s

34.4B

Upstream graph

The networks AS57358 is seen behind, one and two hops out, drawn from real AS paths.

AS57358Toward the internet core
Upstream graph for AS57358: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS57358IMT-Systems GmbHThis networkAS174Cogent Communicat…AS12306Plus.line AGAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS33891Core-Backbone GmbH

Networks observed one and two hops upstream of AS57358 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS57358
NetworkCountryRelationshipPathsVantage pts
AS12306Plus.line AGDEPeer336139
AS174Cogent Communications, LLCUSPeer42

Prefixes

The largest blocks AS57358 originates, widest first.

Largest prefixes originated by AS57358
PrefixAddressesVisibility
185.236.50.0/2351276/76
82.98.73.0/2425676/76
2a13:9d40::/2934.4B × /6462/63
2001:67c:5f8::/4865.5k × /6463/63
2a02:2e0:3ec::/4865.5k × /6463/63

Routing health

How AS57358'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%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 3 prefixes

  • /2934.4B × /6433.3%1
  • /4865.5k × /6466.7%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS57358 started or stopped in this period.

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