asn.dev

Observed topology

AS1798 OREGON

Upstreams 12 carry this network
Downstreams 0 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 7

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS1798: 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
AS6461Zayo BandwidthTransitIPv4 IPv6374
AS3356Level 3 Parent, LLCTransitIPv4 IPv6321
AS6939Hurricane Electric LLCTransitIPv4 IPv6200
AS3701University of OregonEducationIPv4 IPv6164
AS174Cogent Communications, LLCTransitIPv4 IPv6154
AS396450Internet2UnclassifiedIPv4120
AS9002RETN LimitedUnclassifiedIPv439
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv622
AS24482SG.GSHostingIPv4 IPv622
AS2497Internet Initiative Japan Inc.UnclassifiedIPv420
AS3130RGnet OUUnclassifiedIPv420
AS34927iFog GmbHHostingIPv420

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 AS1798 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

19 shown

Every AS seen directly next to AS1798 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv6374
AS3356Level 3 Parent, LLCTransitIPv4 IPv6321
AS6939Hurricane Electric LLCTransitIPv4 IPv6200
AS3701University of OregonEducationIPv4 IPv6164
AS174Cogent Communications, LLCTransitIPv4 IPv6154
AS396450Internet2UnclassifiedIPv4120
AS9002RETN LimitedUnclassifiedIPv439
AS24482SG.GSHostingIPv4 IPv622
AS394256Tech Futures Interactive Inc.UnclassifiedIPv4 IPv622
AS3130RGnet OUUnclassifiedIPv420
AS2497Internet Initiative Japan Inc.UnclassifiedIPv420
AS34927iFog GmbHHostingIPv420

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 AS1798, 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 3 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
Seattle Internet ExchangeSeattle, United States206.81.80.177350
Any2 CaliforniaLos Angeles, United States206.72.210.207321
Northwest Access ExchangePortland, United States198.32.195.23105

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.