asn.dev

Observed topology

AS6736 IRANET-IPM Institute for Research in Fundamental Sciences IPM

Upstreams 1 carry this network
Downstreams 23 this network carries
Adjacent (IPv4) 25
Adjacent (IPv6) 0

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6736: 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
AS39533Asympto Networks Kft.UnclassifiedIPv4900

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 AS6736 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS25306IsIranUnclassifiedIPv41,620
AS34837Institute for Research in Fundamental SciencesUnclassifiedIPv41,062
AS43965Tehran University of Medical ScienceUnclassifiedIPv4846
AS57745Tarbiat Modares UniversityUnclassifiedIPv4480
AS29068University of TehranUnclassifiedIPv4372
AS202571Kharazmi UniversityUnclassifiedIPv4300
AS42990Bank Saderat Iran PJSCUnclassifiedIPv4240
AS60638Informatics Services PJSCUnclassifiedIPv4189
AS47558Kajeh Nasir Toosi University of TechnologyUnclassifiedIPv4180
AS43135Moavenate rasaneh majazi seda va simaUnclassifiedIPv4177
AS41620Iran University Of Science and TechnologyUnclassifiedIPv4168
AS60423E-Money Net Developers 24 Company Private Joint StockUnclassifiedIPv4120
AS24707Melli Pakhsh Faravardehay Nafti Iran PJSCUnclassifiedIPv4118
AS48898Medical Science University Of KashanUnclassifiedIPv497
AS12660Sharif University Of TechnologyUnclassifiedIPv486
AS50460Iranian Blood Transfusion Organization (IBTO)UnclassifiedIPv460
AS35285Institute for Research in Fundamental SciencesUnclassifiedIPv460
AS209836Toesegaran Shabakeh Arseh Novin LtdUnclassifiedIPv460
AS48434Tebyan-e-Noor Cultural-Artistic InstituteUnclassifiedIPv460
AS58104University of IsfahanUnclassifiedIPv460
AS47981Iran University of Medical SciencesUnclassifiedIPv460
AS42867National Iranian Oil Company PJSCUnclassifiedIPv450
AS39200Institute for Research in Fundamental SciencesUnclassifiedIPv417

Adjacency

Adjacent networks

25 shown

Every AS seen directly next to AS6736 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS39533Asympto Networks Kft.UnclassifiedIPv48,662
AS34837Institute for Research in Fundamental SciencesUnclassifiedIPv42,165
AS25306IsIranUnclassifiedIPv41,620
AS43965Tehran University of Medical ScienceUnclassifiedIPv4846
AS57745Tarbiat Modares UniversityUnclassifiedIPv4480
AS29068University of TehranUnclassifiedIPv4372
AS202571Kharazmi UniversityUnclassifiedIPv4300
AS42990Bank Saderat Iran PJSCUnclassifiedIPv4240
AS60638Informatics Services PJSCUnclassifiedIPv4189
AS47558Kajeh Nasir Toosi University of TechnologyUnclassifiedIPv4180
AS48434Tebyan-e-Noor Cultural-Artistic InstituteUnclassifiedIPv4178
AS43135Moavenate rasaneh majazi seda va simaUnclassifiedIPv4177
AS41620Iran University Of Science and TechnologyUnclassifiedIPv4168
AS60423E-Money Net Developers 24 Company Private Joint StockUnclassifiedIPv4120
AS24707Melli Pakhsh Faravardehay Nafti Iran PJSCUnclassifiedIPv4118
AS48898Medical Science University Of KashanUnclassifiedIPv497
AS12660Sharif University Of TechnologyUnclassifiedIPv486
AS35285Institute for Research in Fundamental SciencesUnclassifiedIPv460
AS47981Iran University of Medical SciencesUnclassifiedIPv460
AS58104University of IsfahanUnclassifiedIPv460
AS50460Iranian Blood Transfusion Organization (IBTO)UnclassifiedIPv460
AS209836Toesegaran Shabakeh Arseh Novin LtdUnclassifiedIPv460
AS21341Soroush Rasanheh Company LtdUnclassifiedIPv459
AS42867National Iranian Oil Company PJSCUnclassifiedIPv450
AS39200Institute for Research in Fundamental SciencesUnclassifiedIPv417

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 AS6736, 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.