asn.dev

Observed topology

AS33965 LITECOM Litecom AG

Upstreams 7 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 20
Adjacent (IPv6) 15

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS33965: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6178
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv6131
AS6939Hurricane Electric LLCTransitIPv4 IPv6116
AS13030Init7 (Switzerland) Ltd.HostingIPv4 IPv6113
AS24482SG.GSHostingIPv4 IPv610
AS3303Swisscom (Schweiz) AGResidentialIPv48
AS34019Hivane AssociationUnclassifiedIPv48

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 AS33965 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS198433CKW Fiber Services AGUnclassifiedIPv4 IPv6868
AS28686Aveniq AGUnclassifiedIPv4244
AS204594Galliker Transport AGUnclassifiedIPv4 IPv6227
AS59647EKT AGUnclassifiedIPv4 IPv6159
AS210308Schweizer Paraplegiker-Zentrum Nottwil AGUnclassifiedIPv488
AS57676Azienda elettrica ticineseUnclassifiedIPv4 IPv681
AS206137Societa Elettrica Sopracenerina SA (SES)UnclassifiedIPv4 IPv680
AS210378Kanton ZurichUnclassifiedIPv4 IPv663
AS47506Nexanet AGUnclassifiedIPv4 IPv636
AS41872Quickline AGUnclassifiedIPv434
AS210468Eniwa AGUnclassifiedIPv433
AS34960Netcetera AGHostingIPv4 IPv623
AS209848UBS Card Center AGUnclassifiedIPv414

Adjacency

Adjacent networks

35 shown

Every AS seen directly next to AS33965 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS198433CKW Fiber Services AGUnclassifiedIPv4 IPv6966
AS1299Arelion Sweden ABTransitIPv4 IPv6807
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv6671
AS13030Init7 (Switzerland) Ltd.HostingIPv4 IPv6518
AS6939Hurricane Electric LLCTransitIPv4 IPv6496
AS28686Aveniq AGUnclassifiedIPv4244
AS204594Galliker Transport AGUnclassifiedIPv4 IPv6227
AS59647EKT AGUnclassifiedIPv4 IPv6159
AS210308Schweizer Paraplegiker-Zentrum Nottwil AGUnclassifiedIPv488
AS57676Azienda elettrica ticineseUnclassifiedIPv4 IPv681
AS206137Societa Elettrica Sopracenerina SA (SES)UnclassifiedIPv4 IPv680
AS210378Kanton ZurichUnclassifiedIPv4 IPv663
AS24482SG.GSHostingIPv4 IPv641
AS3303Swisscom (Schweiz) AGResidentialIPv440
AS34019Hivane AssociationUnclassifiedIPv4 IPv639
AS47506Nexanet AGUnclassifiedIPv4 IPv636
AS41872Quickline AGUnclassifiedIPv435
AS210468Eniwa AGUnclassifiedIPv433
AS34960Netcetera AGHostingIPv4 IPv623
AS209848UBS Card Center AGUnclassifiedIPv414
AS9002RETN LimitedUnclassifiedIPv61

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 AS33965, 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
SwissIXZurich, Switzerland91.206.52.144253

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.