Observed topology
AS13293 PIONIER-AS-COM PIONIER
Transit
Upstream networks
Networks observed carrying traffic for AS13293: 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.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 231 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 97 |
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
Networks for which AS13293 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS12831 | Technical University of Gdansk, Academic Computer Center TASK | Unclassified | IPv4 IPv6 | 382 |
| AS12618 | Politechnika Bydgoska im. Jana i Jedrzeja Sniadeckich | Unclassified | IPv4 IPv6 | 344 |
| AS16283 | Lodz University of Technology | Unclassified | IPv4 IPv6 | 215 |
| AS15744 | Silesian University of Technology, Computer Centre | Hosting | IPv4 IPv6 | 188 |
| AS29414 | Politechnika Bialostocka | Unclassified | IPv4 | 183 |
| AS35686 | Nicolaus Copernicus University in Torun | Unclassified | IPv4 | 174 |
| AS8323 | Academic Computer Centre CYFRONET AGH | Education | IPv4 IPv6 | 162 |
| AS30778 | Kielce University of Technology | Unclassified | IPv4 IPv6 | 130 |
| AS13065 | Uniwersytet Zielonogorski | Unclassified | IPv4 IPv6 | 99 |
| AS21064 | University of Warmia and Mazury in Olsztyn, Poland | Unclassified | IPv4 | 92 |
| AS8364 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | Education | IPv4 IPv6 | 80 |
| AS15851 | Wroclaw Centre of Networking and Supercomputing | Unclassified | IPv4 IPv6 | 70 |
| AS34604 | State Research Institute | Unclassified | IPv4 | 62 |
| AS25084 | Politechnika Czestochowska | Unclassified | IPv4 IPv6 | 61 |
| AS13119 | Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum Informatyki | Unclassified | IPv4 IPv6 | 54 |
| AS15396 | University of Warsaw | Unclassified | IPv4 | 50 |
| AS28797 | Technical University of Koszalin | Unclassified | IPv4 | 47 |
| AS25584 | Opole University | Unclassified | IPv4 IPv6 | 39 |
| AS39873 | Rzeszow University of Technology | Unclassified | IPv4 | 32 |
| AS12346 | Maria Curie-Sklodowska University | Unclassified | IPv4 | 31 |
Adjacency
Adjacent networks
Every AS seen directly next to AS13293 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 3,942 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 2,470 |
| AS29414 | Politechnika Bialostocka | Unclassified | IPv4 | 1,554 |
| AS15744 | Silesian University of Technology, Computer Centre | Hosting | IPv4 IPv6 | 914 |
| AS12831 | Technical University of Gdansk, Academic Computer Center TASK | Unclassified | IPv4 IPv6 | 760 |
| AS8323 | Academic Computer Centre CYFRONET AGH | Education | IPv4 IPv6 | 534 |
| AS12618 | Politechnika Bydgoska im. Jana i Jedrzeja Sniadeckich | Unclassified | IPv4 IPv6 | 424 |
| AS16283 | Lodz University of Technology | Unclassified | IPv4 IPv6 | 235 |
| AS25084 | Politechnika Czestochowska | Unclassified | IPv4 IPv6 | 229 |
| AS30778 | Kielce University of Technology | Unclassified | IPv4 IPv6 | 201 |
| AS8364 | Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center | Education | IPv4 IPv6 | 189 |
| AS35686 | Nicolaus Copernicus University in Torun | Unclassified | IPv4 | 176 |
| AS25584 | Opole University | Unclassified | IPv4 IPv6 | 163 |
| AS21064 | University of Warmia and Mazury in Olsztyn, Poland | Unclassified | IPv4 | 144 |
| AS13119 | Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum Informatyki | Unclassified | IPv4 IPv6 | 130 |
| AS13065 | Uniwersytet Zielonogorski | Unclassified | IPv4 IPv6 | 99 |
| AS34604 | State Research Institute | Unclassified | IPv4 | 79 |
| AS15851 | Wroclaw Centre of Networking and Supercomputing | Unclassified | IPv4 IPv6 | 71 |
| AS28797 | Technical University of Koszalin | Unclassified | IPv4 | 69 |
| AS15396 | University of Warsaw | Unclassified | IPv4 | 50 |
| AS39873 | Rzeszow University of Technology | Unclassified | IPv4 | 32 |
| AS12346 | Maria Curie-Sklodowska University | Unclassified | IPv4 | 31 |
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
Internet exchanges where Packet Clearing House has a port recorded for AS13293, 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.