asn.dev

Observed topology

AS33915 TNF-AS

Upstreams 1 carry this network
Downstreams 25 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 10

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33915: 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
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv621,521

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 AS33915 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS212778Gemeente LeeuwardenUnclassifiedIPv4240
AS201644Brabant Water N.VUnclassifiedIPv4180
AS207894Gemeente Sudwest-FryslanUnclassifiedIPv4 IPv6148
AS208240Gemeente RotterdamUnclassifiedIPv4 IPv6126
AS200428SouthernHill BVUnclassifiedIPv4 IPv6105
AS208973Gemeente HaarlemUnclassifiedIPv4 IPv692
AS61351Linfosys BVUnclassifiedIPv4 IPv691
AS58083Gemeente ZaanstadUnclassifiedIPv4 IPv668
AS29263Gemeente Den HaagUnclassifiedIPv4 IPv661
AS61956TCC The Computer Company B.V.UnclassifiedIPv460
AS203474Gemeente De Fryske MarrenUnclassifiedIPv460
AS48869aaff Accountants en Advies B.V.UnclassifiedIPv460
AS207275Gemeente Gooise MerenUnclassifiedIPv460
AS213099Gemeente HilversumUnclassifiedIPv460
AS209721Gemeente SchiedamUnclassifiedIPv460
AS205637Gemeente AmsterdamUnclassifiedIPv460
AS206475Koopman Logistics Group BVUnclassifiedIPv460
AS215104Stichting Spaarne GasthuisUnclassifiedIPv441
AS209390CTNET ICT Infrastructuur B.VUnclassifiedIPv4 IPv636
AS12315Quality Service Provider BVResidentialIPv416
AS30800Infor (Deutschland) GmbHUnclassifiedIPv46
AS34373XXLnet B.V.UnclassifiedIPv44
AS203159Aramco Overseas Company BVUnclassifiedIPv44
AS34663BelastingdienstUnclassifiedIPv43
AS212965International Criminal CourtUnclassifiedIPv42

Adjacency

Adjacent networks

36 shown

Every AS seen directly next to AS33915 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv623,243
AS212778Gemeente LeeuwardenUnclassifiedIPv4240
AS201644Brabant Water N.VUnclassifiedIPv4180
AS207894Gemeente Sudwest-FryslanUnclassifiedIPv4 IPv6148
AS208240Gemeente RotterdamUnclassifiedIPv4 IPv6126
AS200428SouthernHill BVUnclassifiedIPv4 IPv6107
AS208973Gemeente HaarlemUnclassifiedIPv4 IPv692
AS61351Linfosys BVUnclassifiedIPv4 IPv691
AS58083Gemeente ZaanstadUnclassifiedIPv4 IPv668
AS29263Gemeente Den HaagUnclassifiedIPv4 IPv661
AS206475Koopman Logistics Group BVUnclassifiedIPv460
AS48869aaff Accountants en Advies B.V.UnclassifiedIPv460
AS207275Gemeente Gooise MerenUnclassifiedIPv460
AS213099Gemeente HilversumUnclassifiedIPv460
AS61956TCC The Computer Company B.V.UnclassifiedIPv460
AS203474Gemeente De Fryske MarrenUnclassifiedIPv460
AS205637Gemeente AmsterdamUnclassifiedIPv460
AS209721Gemeente SchiedamUnclassifiedIPv460
AS215104Stichting Spaarne GasthuisUnclassifiedIPv444
AS209390CTNET ICT Infrastructuur B.VUnclassifiedIPv4 IPv636
AS12315Quality Service Provider BVResidentialIPv416
AS34373XXLnet B.V.UnclassifiedIPv412
AS30800Infor (Deutschland) GmbHUnclassifiedIPv46
AS34663BelastingdienstUnclassifiedIPv46
AS203159Aramco Overseas Company BVUnclassifiedIPv44
AS9143Vodafone Libertel B.V.ResidentialIPv63
AS212965International Criminal CourtUnclassifiedIPv42

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 AS33915, 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 1 exchange across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
AMS-IX AmsterdamAmsterdam, Netherlands80.249.209.143894

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.