asn.dev

Observed topology

AS28685 ASN-ROUTIT

Upstreams 2 carry this network
Downstreams 11 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 4

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS28685: 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
AS1136KPN B.V.ResidentialIPv4 IPv61,997
AS57866Fusix Networks B.V.UnclassifiedIPv416

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 AS28685 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS51517Arend BrouwerHostingIPv4 IPv6165
AS200991Blue Coded B.V.UnclassifiedIPv4 IPv6140
AS207179WilroffReitsma B.V.UnclassifiedIPv4 IPv6127
AS21162Valantic Digital Experience Solutions (DXS) B.V.UnclassifiedIPv4120
AS31537Erdee Media B.V.UnclassifiedIPv460
AS42492Unica ICT Solutions B.V.UnclassifiedIPv460
AS35024Axit Automatisering B.V.UnclassifiedIPv460
AS203966A1 Internet BVUnclassifiedIPv410
AS39563CTA Systems B.V.UnclassifiedIPv48
AS57029Case Telecom B.V.ResidentialIPv46
AS198012Interforce Networks BVUnclassifiedIPv44

Adjacency

Adjacent networks

17 shown

Every AS seen directly next to AS28685 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1136KPN B.V.ResidentialIPv4 IPv62,757
AS51517Arend BrouwerHostingIPv4 IPv6165
AS200991Blue Coded B.V.UnclassifiedIPv4 IPv6140
AS207179WilroffReitsma B.V.UnclassifiedIPv4 IPv6127
AS21162Valantic Digital Experience Solutions (DXS) B.V.UnclassifiedIPv4120
AS31537Erdee Media B.V.UnclassifiedIPv460
AS42492Unica ICT Solutions B.V.UnclassifiedIPv460
AS35024Axit Automatisering B.V.UnclassifiedIPv460
AS57866Fusix Networks B.V.UnclassifiedIPv416
AS203966A1 Internet BVUnclassifiedIPv410
AS39563CTA Systems B.V.UnclassifiedIPv48
AS57029Case Telecom B.V.ResidentialIPv46
AS198012Interforce Networks BVUnclassifiedIPv44

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 AS28685, 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. Recorded at 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Neutral Internet ExchangeAmsterdam, Netherlands193.239.116.51665

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.