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AS51396Pfcloud UG (haftungsbeschrankt)

GermanyRegistryRIPE NCCTypeContent

As of 26th September 2026, AS51396 (Pfcloud UG (haftungsbeschrankt)), a content network registered in Germany with RIPE NCC, originates 31 IPv4 prefixes covering 7.9k addresses and 41 IPv6 prefixes. By IPv4 address space that makes it the 12,561st-largest of the 79,480 networks we see originating IPv4, and the 454th-largest of 2,288 in Germany. It is seen behind 14 upstream networks, most often AS49581 (Ferdinand Zink trading as Tube-Hosting) and AS6939 (Hurricane Electric LLC), and in front of 24 downstream networks. 96% of its announcements have 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

31

IPv6 prefixes

41

IPv4 addresses

7.9k

IPv6 /64s

387B

Upstream graph

The networks AS51396 is seen behind, one and two hops out, drawn from real AS paths.

AS51396Toward the internet core
Upstream graph for AS51396: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS51396Pfcloud UG (haftu…This networkAS6939Hurricane Electri…AS30823aurologic GmbHAS49581Ferdinand Zink tr…AS62403PletX GmbHAS64457Matteo Fruhwald t…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS44592SkyLink Data Cent…AS6453TATA Communicatio…AS215120Evolus IT Solutio…

Networks observed one and two hops upstream of AS51396 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

124

adjacent networks

Upstreams
1411%
Peers
8669%
Downstreams
2419%

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

Upstreams of AS51396
NetworkCountryRelationshipPathsVantage pts
AS49581Ferdinand Zink trading as Tube-HostingDEPeer4,130144
AS6939Hurricane Electric LLCUSPeer1,26559
AS62403PletX GmbHDEPeer1,139145
AS30823aurologic GmbHDEPeer62381
AS64457Matteo Fruhwald trading as PipeHost e.U.ATPeer56763
AS35133Eranium B.V.NLPeer48518
AS50263A-Systems Sp. z o.o.PLPeer26324
AS34779T-2, d.o.o.SIPeer197145
AS13030Init7 (Switzerland) Ltd.CHPeer1345
AS39122Blacknight Internet Solutions LimitedIEPeer642

Prefixes

All 72

The largest blocks AS51396 originates, widest first.

Largest prefixes originated by AS51396
PrefixAddressesVisibility
23.176.184.0/2425681/81
31.40.201.0/2425681/81
31.57.37.0/2425681/81
31.57.185.0/2425681/81
45.135.193.0/2425681/81
45.135.194.0/2425681/81
45.144.212.0/2425681/81
77.83.39.0/2425681/81
77.83.207.0/2425681/81
85.208.84.0/2425681/81

Routing health

How AS51396'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

  • Valid95.8%69
  • Invalid0.0%0
  • No ROA4.2%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%72
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 31 prefixes

IPv6 — 41 prefixes

  • /2934.4B × /642.4%1
  • /3017.2B × /6443.9%18
  • /324.3B × /6424.4%10
  • /36268M × /644.9%2
  • /37134M × /642.4%1
  • /3867.1M × /642.4%1
  • /3933.6M × /642.4%1
  • /4016.8M × /649.8%4
  • /441M × /642.4%1
  • /4865.5k × /644.9%2

Recent changes

Announcements that started or stopped since 27th Aug 2026.

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