asn.dev

Observed topology

AS40805 JMF-NETWORKS

Upstreams 3 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 7
Adjacent (IPv6) 3

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS40805: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6492
AS49915Megaport (UK) LimitedUnclassifiedIPv436
AS13760Uniti Fiber Holdings Inc.ResidentialIPv4 IPv632

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 AS40805 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS11848SecureVisionResidentialIPv4134
AS401031Faulkner UniversityEducationIPv4 IPv6105
AS394500PRESTIGE-HEALTHNETUnclassifiedIPv467
AS33000IXP FARMHostingIPv454

Adjacency

Adjacent networks

11 shown

Every AS seen directly next to AS40805 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6834
AS11848SecureVisionResidentialIPv4134
AS401031Faulkner UniversityEducationIPv4 IPv6105
AS13760Uniti Fiber Holdings Inc.ResidentialIPv4 IPv676
AS394500PRESTIGE-HEALTHNETUnclassifiedIPv467
AS49915Megaport (UK) LimitedUnclassifiedIPv464
AS33000IXP FARMHostingIPv454

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 AS40805, 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 7 exchanges across 2 countries and 2 regions.

ExchangeLocationTheir addressMember ports
AMS-IX AmsterdamAmsterdam, Netherlands80.249.208.8894
Seattle Internet ExchangeSeattle, United States2001:504:16::9f65350
DE-CIX New YorkNew York, United States206.82.105.13279
DE-CIX DallasDallas, United States206.53.202.84174
Massachusetts Internet ExchangeBoston, United States206.53.143.8872
Megaport IX AshburnAshburn, United States206.53.170.2149
Montgomery Internet ExchangeMontgomery, United States206.53.200.4125

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 2026-08-09 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.03M 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.