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AS44486Oliver Horscht is trading as "SYNLINQ"

GermanyRegistryRIPE NCCTypeContent

As of 26th September 2026, AS44486 (Oliver Horscht is trading as "SYNLINQ"), a content network registered in Germany with RIPE NCC, originates 97 IPv4 prefixes covering 31.7k addresses and 16 IPv6 prefixes. By IPv4 address space that makes it the 5,553rd-largest of the 79,516 networks we see originating IPv4, and the 186th-largest of 2,288 in Germany. It is seen behind 34 upstream networks, most often AS2914 (NTT America, Inc.) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 14 downstream networks. 91% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers, and 3 prefixes are also originated by another network.

At a glance

IPv4 prefixes

97

IPv6 prefixes

16

IPv4 addresses

31.7k

IPv6 /64s

314B

Upstream graph

The networks AS44486 is seen behind, one and two hops out, drawn from real AS paths.

AS44486Toward the internet core
Upstream graph for AS44486: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS44486Oliver Horscht is…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS6453TATA Communicatio…AS151326DCConnect Communi…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3130RGnet OUAS49544i3D.net B.VAS6667Elisa OyjAS398465Rackdog LLC

Networks observed one and two hops upstream of AS44486 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

203

adjacent networks

Upstreams
3417%
Peers
15576%
Downstreams
147%

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

Upstreams of AS44486
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer3,37669
AS1299Arelion (fka. Telia Carrier)SEPeer3,33560
AS174Cogent Communications, LLCUSPeer2,20376
AS3257GTT Communications Inc.USPeer1,97199
AS6453TATA Communications (America) IncUSPeer1,45530
AS33891Core-Backbone GmbHDEPeer78557
AS60068Datacamp Limited (CDN77 / DataPacket)GBPeer62781
AS6939Hurricane Electric LLCUSPeer43711
AS24940Hetzner Online GmbHDEPeer1842
AS24482SG.GSSGPeer1832

Prefixes

All 113

The largest blocks AS44486 originates, widest first.

Largest prefixes originated by AS44486
PrefixAddressesVisibility
45.82.120.0/221k81/81
45.88.108.0/221k81/81
45.135.200.0/221k81/81
91.218.64.0/221k80/81
103.252.88.0/221k80/81
154.43.52.0/221k80/81
154.47.144.0/221k80/81
5.180.252.0/2351281/81
5.180.254.0/2351281/81
45.145.224.0/2351281/81

Routing health

How AS44486'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

  • Valid91.2%103
  • Invalid3.5%4
  • No ROA5.3%6

Propagation

  • Globally propagated90% of full-feed peers or more96.5%109
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.5%4

Prefix sizes

IPv4 — 97 prefixes

IPv6 — 16 prefixes

  • /2934.4B × /6456.3%9
  • /324.3B × /646.3%1
  • /4016.8M × /646.3%1
  • /441M × /6412.5%2
  • /4865.5k × /6418.8%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced31.58.54.0/2422nd Sept 2026
  • Withdrawn109.122.27.0/2421st Sept 2026

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