asn.dev

Observed topology

AS22335 MREN

Upstreams 3 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 19
Adjacent (IPv6) 8

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS22335: 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
AS11164Internet2EducationIPv418
AS11537Internet2UnclassifiedIPv46
AS293ESnetUnclassifiedIPv41

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 AS22335 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS6325Illinois Century NetworkUnclassifiedIPv4 IPv6371
AS53695Southern Illinois University at EdwardsvilleUnclassifiedIPv4264
AS103Northwestern UniversityUnclassifiedIPv4 IPv6144
AS683Argonne National LaboratoryUnclassifiedIPv4 IPv6110
AS7968Loyola University ChicagoEducationIPv456
AS29825Illinois Institute of TechnologyUnclassifiedIPv442
AS20130Depaul UniversityEducationIPv4 IPv640
AS6200University of Illinois ChicagoEducationIPv4 IPv631
AS18555The Art Institute of ChicagoUnclassifiedIPv420
AS1224University of IllinoisUnclassifiedIPv4 IPv614
AS15119Southern Illinois University CarbondaleUnclassifiedIPv412
AS7386Illinois State UniversityEducationIPv47
AS8674Netnod ABUnclassifiedIPv46
AS31770Ann & Robert H. Lurie Children's Hospital of ChicagoUnclassifiedIPv46
AS26367Bradley UniversityUnclassifiedIPv45

Adjacency

Adjacent networks

27 shown

Every AS seen directly next to AS22335 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS11537Internet2UnclassifiedIPv4 IPv6773
AS6325Illinois Century NetworkUnclassifiedIPv4 IPv6573
AS11164Internet2EducationIPv4 IPv6504
AS53695Southern Illinois University at EdwardsvilleUnclassifiedIPv4264
AS103Northwestern UniversityUnclassifiedIPv4 IPv6144
AS683Argonne National LaboratoryUnclassifiedIPv4 IPv6110
AS293ESnetUnclassifiedIPv486
AS7968Loyola University ChicagoEducationIPv456
AS29825Illinois Institute of TechnologyUnclassifiedIPv442
AS20130Depaul UniversityEducationIPv4 IPv640
AS6200University of Illinois ChicagoEducationIPv4 IPv631
AS18555The Art Institute of ChicagoUnclassifiedIPv420
AS1224University of IllinoisUnclassifiedIPv4 IPv614
AS15119Southern Illinois University CarbondaleUnclassifiedIPv412
AS8674Netnod ABUnclassifiedIPv49
AS7386Illinois State UniversityEducationIPv47
AS31770Ann & Robert H. Lurie Children's Hospital of ChicagoUnclassifiedIPv46
AS26367Bradley UniversityUnclassifiedIPv45
AS40387University of IllinoisUnclassifiedIPv45

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 AS22335, 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.