asn.dev

Observed topology

AS29550 SIMPLYTRANSIT

Upstreams 7 carry this network
Downstreams 6 this network carries
Adjacent (IPv4) 14
Adjacent (IPv6) 8

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS29550: 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
AS48185team.blue NVUnclassifiedIPv4 IPv6461
AS6939Hurricane Electric LLCTransitIPv4 IPv6130
AS1299Arelion Sweden ABTransitIPv463
AS3356Level 3 Parent, LLCTransitIPv442
AS2914NTT America, Inc.TransitIPv434
AS3303Swisscom (Schweiz) AGResidentialIPv419
AS6461Zayo BandwidthTransitIPv48

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 AS29550 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS44574Network Services Ltd.HostingIPv4 IPv61,404
AS34920Team Blue Carrier LimitedHostingIPv4 IPv6813
AS8622TEAM BLUE INTERNET SERVICES UK LIMITEDHostingIPv4 IPv6336
AS34282Team Blue Carrier LimitedHostingIPv4 IPv6275
AS41355Team Blue Carrier LimitedUnclassifiedIPv4 IPv6213
AS29636Team Blue Carrier LimitedHostingIPv4 IPv6145

Adjacency

Adjacent networks

23 shown

Every AS seen directly next to AS29550 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS48185team.blue NVUnclassifiedIPv4 IPv63,859
AS44574Network Services Ltd.HostingIPv4 IPv61,406
AS34920Team Blue Carrier LimitedHostingIPv4 IPv6813
AS34282Team Blue Carrier LimitedHostingIPv4 IPv6430
AS8622TEAM BLUE INTERNET SERVICES UK LIMITEDHostingIPv4 IPv6336
AS41355Team Blue Carrier LimitedUnclassifiedIPv4 IPv6213
AS29636Team Blue Carrier LimitedHostingIPv4 IPv6145
AS6939Hurricane Electric LLCTransitIPv4 IPv6130
AS1299Arelion Sweden ABTransitIPv463
AS42708Glesys ABUnclassifiedIPv455
AS3356Level 3 Parent, LLCTransitIPv442
AS2914NTT America, Inc.TransitIPv434
AS3303Swisscom (Schweiz) AGResidentialIPv419
AS6461Zayo BandwidthTransitIPv48

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 AS29550, 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 2 countries and 1 region.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom2001:7f8:4::736e:1925
London Network Access PointLondon, United Kingdom2001:7f8:17::736e:1316
Internet Neutral Exchange Association CLG - LAN1Dublin, Ireland185.6.36.178115

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 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 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.