asn.dev

Observed topology

AS202297 SKYLON SKYLON

Upstreams 5 carry this network
Downstreams 28 this network carries
Adjacent (IPv4) 36
Adjacent (IPv6) 7

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS202297: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS39392SH.cz s.r.o.HostingIPv4 IPv6266
AS6939Hurricane Electric LLCTransitIPv649
AS33891Core-Backbone GmbHHostingIPv44
AS47232ISP Alliance a.s.ResidentialIPv42
AS24482SG.GSHostingIPv42

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS202297 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16509Amazon.com, Inc.HostingIPv42,975
AS13335Cloudflare, Inc.HostingIPv4 IPv61,865
AS15169Google LLCHostingIPv4943
AS210951Josef MieglUnclassifiedIPv6248
AS23764CTGNetUnclassifiedIPv4168
AS12741Netia SAResidentialIPv4163
AS5610O2 Czech Republic, a.s.UnclassifiedIPv4 IPv669
AS6663Euroweb Romania S.R.L.UnclassifiedIPv446
AS24482SG.GSHostingIPv445
AS1820WNET TELECOM USA Corp.ResidentialIPv438
AS200299BaseServ LimitedUnclassifiedIPv635
AS10310Yahoo Holdings Inc.HostingIPv432
AS40994Hohl IT e.U.HostingIPv423
AS54113Fastly, Inc.HostingIPv422
AS4455IX Reach LtdUnclassifiedIPv420
AS5578SWAN, a.s.UnclassifiedIPv410
AS35236UVT Internet s.r.o.UnclassifiedIPv410
AS6507Riot Games, IncHostingIPv410
AS8251FreeTel, s.r.o.HostingIPv46
AS32590Valve CorporationHostingIPv45
AS32934Facebook, Inc.HostingIPv45
AS36236NetActuate, IncHostingIPv44
AS112DNS-OARCUnclassifiedIPv4 IPv64
AS50338GamerHost s.r.o.HostingIPv42
AS208393Dedcloud Network LtdHostingIPv42
AS6939Hurricane Electric LLCTransitIPv41
AS28725CETIN a.s.ResidentialIPv41
AS36351IBM CloudHostingIPv41

Adjacency

Adjacent networks

45 shown

Every AS seen directly next to AS202297 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS23764CTGNetUnclassifiedIPv413,144
AS13335Cloudflare, Inc.HostingIPv4 IPv68,241
AS47232ISP Alliance a.s.ResidentialIPv45,774
AS15169Google LLCHostingIPv44,719
AS24482SG.GSHostingIPv43,202
AS16509Amazon.com, Inc.HostingIPv43,141
AS6663Euroweb Romania S.R.L.UnclassifiedIPv41,487
AS12741Netia SAResidentialIPv41,304
AS1820WNET TELECOM USA Corp.ResidentialIPv4981
AS4455IX Reach LtdUnclassifiedIPv4472
AS39392SH.cz s.r.o.HostingIPv4 IPv6447
AS6939Hurricane Electric LLCTransitIPv4 IPv6353
AS10310Yahoo Holdings Inc.HostingIPv4326
AS210951Josef MieglUnclassifiedIPv6248
AS5610O2 Czech Republic, a.s.UnclassifiedIPv4 IPv6244
AS36236NetActuate, IncHostingIPv4117
AS5578SWAN, a.s.UnclassifiedIPv456
AS6461Zayo BandwidthTransitIPv456
AS8251FreeTel, s.r.o.HostingIPv447
AS40994Hohl IT e.U.HostingIPv442
AS35236UVT Internet s.r.o.UnclassifiedIPv437
AS200299BaseServ LimitedUnclassifiedIPv635
AS32787Akamai Technologies, Inc.HostingIPv424
AS54113Fastly, Inc.HostingIPv422
AS6507Riot Games, IncHostingIPv410
AS50338GamerHost s.r.o.HostingIPv49
AS32934Facebook, Inc.HostingIPv48
AS32590Valve CorporationHostingIPv45
AS57463NetIX Communications JSCUnclassifiedIPv44
AS33891Core-Backbone GmbHHostingIPv44
AS112DNS-OARCUnclassifiedIPv4 IPv64
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv42
AS2852CESNET z.s.p.o.EducationIPv42
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv42
AS199803ComSource s.r.o.HostingIPv42
AS208393Dedcloud Network LtdHostingIPv42
AS36351IBM CloudHostingIPv41
AS28725CETIN a.s.ResidentialIPv41

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS202297, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it.

No exchange membership on file. That is not the same as peering nowhere: the dataset records what PCH has collected, and many exchanges publish no participant list at all.

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.