asn.dev

Observed topology

AS13119 ACI-COM-AS

Upstreams 14 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 7

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS13119: 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
AS174Cogent Communications, LLCTransitIPv4228
AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6207
AS13293Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv654
AS6939Hurricane Electric LLCTransitIPv449
AS24482SG.GSHostingIPv4 IPv610
AS29504Freenet Liberec, z.s.UnclassifiedIPv49
AS57463NetIX Communications JSCUnclassifiedIPv49
AS5617Orange Polska Spolka AkcyjnaMobileIPv49
AS33891Core-Backbone GmbHHostingIPv43
AS9002RETN LimitedUnclassifiedIPv62
AS8286Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum InformatykiEducationIPv41
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv41
AS8218Zayo Infrastructure France SAUnclassifiedIPv41
AS20473The Constant Company, LLCHostingIPv61

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 AS13119 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS204444LanTech Piotr PilekUnclassifiedIPv4 IPv6424
AS43803Speedmedia Sp z o.o.UnclassifiedIPv4147
AS211025OPTO-TECH GRZEGORZ WROBLEWSKIUnclassifiedIPv4145
AS199296Maciej Wasiuta trading as VIRTUAL SPACEUnclassifiedIPv4135
AS44061SAT-MONT-SERVICE JACEK MRUK, KRZYSZTOF MRUK Sp. z o.o.UnclassifiedIPv4107
AS204190Gmina Miasto SzczecinUnclassifiedIPv470
AS60323Technologiczny Sp. z o.o.UnclassifiedIPv4 IPv651
AS199855WOJEWODZTWO ZACHODNIOPOMORSKIEUnclassifiedIPv443
AS60565Wojewodzka Stacja Pogotowia Ratunkowego SzczecinUnclassifiedIPv442
AS197217Shentel Sp. z o.o.UnclassifiedIPv440
AS8286Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum InformatykiEducationIPv424
AS35179Korbank S. A.UnclassifiedIPv416

Adjacency

Adjacent networks

32 shown

Every AS seen directly next to AS13119 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4637
AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6547
AS204444LanTech Piotr PilekUnclassifiedIPv4 IPv6424
AS9002RETN LimitedUnclassifiedIPv4 IPv6212
AS6939Hurricane Electric LLCTransitIPv4170
AS43803Speedmedia Sp z o.o.UnclassifiedIPv4147
AS211025OPTO-TECH GRZEGORZ WROBLEWSKIUnclassifiedIPv4145
AS199296Maciej Wasiuta trading as VIRTUAL SPACEUnclassifiedIPv4135
AS13293Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6130
AS44061SAT-MONT-SERVICE JACEK MRUK, KRZYSZTOF MRUK Sp. z o.o.UnclassifiedIPv4107
AS204190Gmina Miasto SzczecinUnclassifiedIPv470
AS60323Technologiczny Sp. z o.o.UnclassifiedIPv4 IPv651
AS29504Freenet Liberec, z.s.UnclassifiedIPv444
AS199855WOJEWODZTWO ZACHODNIOPOMORSKIEUnclassifiedIPv443
AS60565Wojewodzka Stacja Pogotowia Ratunkowego SzczecinUnclassifiedIPv442
AS197217Shentel Sp. z o.o.UnclassifiedIPv440
AS5617Orange Polska Spolka AkcyjnaMobileIPv430
AS57463NetIX Communications JSCUnclassifiedIPv427
AS8286Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Akademickie Centrum InformatykiEducationIPv425
AS24482SG.GSHostingIPv4 IPv624
AS35179Korbank S. A.UnclassifiedIPv416
AS33891Core-Backbone GmbHHostingIPv43
AS8218Zayo Infrastructure France SAUnclassifiedIPv41
AS20473The Constant Company, LLCHostingIPv61
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv41

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 AS13119, 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 2 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
TPIX - Internet ExchangeWarsaw, Poland195.149.233.7462
Thinx IXWarsaw, Poland212.91.0.241192

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.