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AS12732GutCon GmbH

GermanyRegistryRIPE NCC

As of 27th September 2026, AS12732 (GutCon GmbH), a network registered in Germany with RIPE NCC, originates 6 IPv4 prefixes covering 2.3k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 24,093rd-largest of the 79,525 networks we see originating IPv4, and the 799th-largest of 2,288 in Germany. It is seen behind 34 upstream networks, most often AS3356 (Lumen (Level 3)) and AS5405 (Inter.link GmbH), and in front of 7 downstream networks. 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

6

IPv6 prefixes

6

IPv4 addresses

2.3k

IPv6 /64s

42.9B

Upstream graph

The networks AS12732 is seen behind, one and two hops out, drawn from real AS paths.

AS12732Toward the internet core
Upstream graph for AS12732: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS12732GutCon GmbHThis networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS5405Inter.link GmbHAS6939Hurricane Electri…AS30742Bremen Briteline …AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS3491PCCW Global (HK) …AS13237euNetworks GmbHAS20130Depaul University

Networks observed one and two hops upstream of AS12732 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

197

adjacent networks

Upstreams
3417%
Peers
15679%
Downstreams
74%

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

Upstreams of AS12732
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,372117
AS5405Inter.link GmbHDEPeer92849
AS174Cogent Communications, LLCUSPeer58156
AS30742Bremen Briteline GmbHDEPeer289145
AS6939Hurricane Electric LLCUSPeer19815
AS13030Init7 (Switzerland) Ltd.CHPeer624
AS9002RETN LimitedGBPeer586
AS24482SG.GSSGPeer452
AS33891Core-Backbone GmbHDEPeer432
AS14537Continent 8 LLCUSPeer323

Prefixes

The largest blocks AS12732 originates, widest first.

Largest prefixes originated by AS12732
PrefixAddressesVisibility
193.34.120.0/221k80/81
91.199.214.0/2425681/81
193.34.121.0/2425681/81
193.34.122.0/2425681/81
212.21.71.0/2425680/81
212.42.230.0/2425679/81
2001:bf0::/2934.4B × /6463/64
2001:bf0::/324.3B × /6462/64
2001:bf1::/324.3B × /6463/64
2001:67c:278c::/4865.5k × /6462/64

Routing health

How AS12732'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%12
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 6 prefixes

  • /2934.4B × /6416.7%1
  • /324.3B × /6433.3%2
  • /4865.5k × /6450.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS12732 started or stopped in this period.

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