asn.dev

Observed topology

AS22335 MREN - Metropolitan Research and Education Network

Unclassified ARIN

Upstreams 3 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 19
Adjacent (IPv6) 8
Upstream graph Who carries AS22335, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS22335 physically turns up to peer, and its address on each fabric.

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
AS11164Internet2EducationIPv421
AS11537Internet2UnclassifiedIPv46
AS293ESnetUnclassifiedIPv41

Transit

Downstream networks

All 15

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

ASNetworkTypeFamiliesPaths seen
AS53695Southern Illinois University at EdwardsvilleUnclassifiedIPv4300
AS6325Illinois Century NetworkUnclassifiedIPv4 IPv6289
AS103Northwestern UniversityUnclassifiedIPv4 IPv6144
AS683Argonne National LaboratoryUnclassifiedIPv4 IPv660
AS7968Loyola University ChicagoEducationIPv453
AS29825Illinois Institute of TechnologyUnclassifiedIPv442
AS20130Depaul UniversityEducationIPv4 IPv640
AS6200University of Illinois ChicagoEducationIPv4 IPv631
AS7386Illinois State UniversityEducationIPv430
AS18555The Art Institute of ChicagoUnclassifiedIPv420

All 15 downstreams →

Adjacency

Adjacent networks

All 19

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

ASNetworkTypeFamiliesPaths seen
AS11537Internet2UnclassifiedIPv4 IPv6744
AS6325Illinois Century NetworkUnclassifiedIPv4 IPv6510
AS11164Internet2EducationIPv4 IPv6475
AS53695Southern Illinois University at EdwardsvilleUnclassifiedIPv4300
AS103Northwestern UniversityUnclassifiedIPv4 IPv6144
AS293ESnetUnclassifiedIPv486
AS683Argonne National LaboratoryUnclassifiedIPv4 IPv660
AS7968Loyola University ChicagoEducationIPv453
AS29825Illinois Institute of TechnologyUnclassifiedIPv442
AS20130Depaul UniversityEducationIPv4 IPv640

All 19 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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