asn.dev

Observed topology

AS33425 COREWEAVE

Upstreams 37 carry this network
Downstreams 0 this network carries
Adjacent (IPv4) 33
Adjacent (IPv6) 19

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33425: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv668
AS6939Hurricane Electric LLCTransitIPv4 IPv658
AS1299Arelion Sweden ABTransitIPv4 IPv650
AS174Cogent Communications, LLCTransitIPv4 IPv635
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv624
AS22652Videotron LteeResidentialIPv4 IPv614
AS50304Blix Solutions ASUnclassifiedIPv412
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv610
AS34927iFog GmbHHostingIPv49
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv68
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv68
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv68
AS24482SG.GSHostingIPv4 IPv68
AS852TELUS Communications Inc.ResidentialIPv4 IPv68
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv68
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv68
AS12779IT.Gate S.p.A.UnclassifiedIPv46
AS971PureVoltage Hosting Inc.UnclassifiedIPv46
AS7575Australian Academic and Research Network (AARNet)EducationIPv46
AS3216PJSC "Vimpelcom"MobileIPv46
AS50673Serverius Holding B.V.UnclassifiedIPv46
AS37100SEACOM LimitedUnclassifiedIPv46
AS293ESnetUnclassifiedIPv46
AS57463NetIX Communications JSCUnclassifiedIPv46
AS3130RGnet OUUnclassifiedIPv46
AS12552GlobalConnect ABUnclassifiedIPv46
AS11164Internet2EducationIPv46
AS3741Dimension DataUnclassifiedIPv46
AS9002RETN LimitedUnclassifiedIPv4 IPv65
AS1403EBOXResidentialIPv64
AS48185team.blue NVUnclassifiedIPv43
AS20766Association "Gitoyen"UnclassifiedIPv43
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv43
AS1103SURF B.V.UnclassifiedIPv43
AS20473The Constant Company, LLCHostingIPv62
AS213241TECHIT.BE SRLResidentialIPv62
AS29632Netassist International EOODUnclassifiedIPv62

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 AS33425 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

52 shown

Every AS seen directly next to AS33425 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv668
AS6939Hurricane Electric LLCTransitIPv4 IPv658
AS1299Arelion Sweden ABTransitIPv4 IPv650
AS174Cogent Communications, LLCTransitIPv4 IPv635
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv624
AS22652Videotron LteeResidentialIPv4 IPv614
AS50304Blix Solutions ASUnclassifiedIPv412
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv610
AS34927iFog GmbHHostingIPv49
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv68
AS852TELUS Communications Inc.ResidentialIPv4 IPv68
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv68
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv68
AS24482SG.GSHostingIPv4 IPv68
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv68
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv68
AS50673Serverius Holding B.V.UnclassifiedIPv46
AS12779IT.Gate S.p.A.UnclassifiedIPv46
AS7575Australian Academic and Research Network (AARNet)EducationIPv46
AS11164Internet2EducationIPv46
AS57463NetIX Communications JSCUnclassifiedIPv46
AS37100SEACOM LimitedUnclassifiedIPv46
AS293ESnetUnclassifiedIPv46
AS3741Dimension DataUnclassifiedIPv46
AS12552GlobalConnect ABUnclassifiedIPv46
AS3130RGnet OUUnclassifiedIPv46
AS3216PJSC "Vimpelcom"MobileIPv46
AS971PureVoltage Hosting Inc.UnclassifiedIPv46
AS9002RETN LimitedUnclassifiedIPv4 IPv65
AS1403EBOXResidentialIPv64
AS48185team.blue NVUnclassifiedIPv43
AS1103SURF B.V.UnclassifiedIPv43
AS20766Association "Gitoyen"UnclassifiedIPv43
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv43
AS20473The Constant Company, LLCHostingIPv62
AS213241TECHIT.BE SRLResidentialIPv62
AS29632Netassist International EOODUnclassifiedIPv62

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 AS33425, 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 14 exchanges across 5 countries and 2 regions.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.228.33925
AMS-IX AmsterdamAmsterdam, Netherlands80.249.208.148894
Equinix Internet Exchange AshburnAshburn, United States206.126.237.94388
Seattle Internet ExchangeSeattle, United States2001:504:16::8291350
Toronto Internet ExchangeToronto, Canada206.108.34.89286
Equinix Internet Exchange ChicagoChicago, United States208.115.136.53280
DE-CIX New YorkNew York, United States206.82.106.9279
Equinix Internet Exchange DallasDallas, United States206.223.119.35225
Equinix Internet Exchange San Jose (Bay Area)San Jose, United States206.223.116.64193
DE-CIX DallasDallas, United States206.53.202.106174
Equinix Internet Exchange New YorkNew York, United States198.32.118.7498
Sweden Open Network Internet eXchange StockholmStockholm, Sweden185.1.215.9197
Interconnection eXchange DenverDenver, United States206.53.175.11092
DE-CIX ChicagoChicago, United States149.112.11.6783

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.