asn.dev

Observed topology

AS15954 TECNOCRATICA Tecnocratica Centro de Datos, S.L.

Upstreams 10 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 12

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS15954: 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
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALUnclassifiedIPv4 IPv6536
AS174Cogent Communications, LLCTransitIPv4 IPv6156
AS3257GTT Communications Inc.TransitIPv4 IPv6133
AS6939Hurricane Electric LLCTransitIPv4 IPv656
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv644
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv618
AS24482SG.GSHostingIPv4 IPv612
AS57463NetIX Communications JSCUnclassifiedIPv44
AS8218Zayo Infrastructure France SAUnclassifiedIPv44
AS13030Init7 (Switzerland) Ltd.HostingIPv63

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 AS15954 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS39640Valor Information Technologies, S.L.HostingIPv4366
AS62080Adrian Almenar SerranoUnclassifiedIPv4 IPv6156
AS204773Felipe Canizares Navarro trading as DMNTR NETWORK SOLUTIONSHostingIPv4 IPv6134
AS51718Hospedaje y Dominios S.L.UnclassifiedIPv4123
AS205035LucusHost SLUnclassifiedIPv493
AS202018Servinet Sistemas y Comunicacion S.L.UnclassifiedIPv462
AS200867RGNET CLOUD, S.L.UnclassifiedIPv461
AS6750Soluciones Dinamicas de la Red, S.L.UnclassifiedIPv461
AS60488Tecnocratica Centro de Datos, S.L.UnclassifiedIPv447
AS43520Meytel Publicidad S.L.UnclassifiedIPv439
AS202207ASPA CLOUD SLHostingIPv416
AS197518Rackmarkt SLUnclassifiedIPv612
AS112DNS-OARCUnclassifiedIPv44
AS25152Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv42
AS20144ICANNUnclassifiedIPv42

Adjacency

Adjacent networks

35 shown

Every AS seen directly next to AS15954 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29119AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONALUnclassifiedIPv4 IPv61,389
AS39640Valor Information Technologies, S.L.HostingIPv4 IPv6801
AS174Cogent Communications, LLCTransitIPv4 IPv6405
AS3257GTT Communications Inc.TransitIPv4 IPv6325
AS6939Hurricane Electric LLCTransitIPv4 IPv6235
AS62080Adrian Almenar SerranoUnclassifiedIPv4 IPv6156
AS204773Felipe Canizares Navarro trading as DMNTR NETWORK SOLUTIONSHostingIPv4 IPv6134
AS51718Hospedaje y Dominios S.L.UnclassifiedIPv4123
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6104
AS205035LucusHost SLUnclassifiedIPv493
AS202018Servinet Sistemas y Comunicacion S.L.UnclassifiedIPv462
AS200867RGNET CLOUD, S.L.UnclassifiedIPv461
AS6750Soluciones Dinamicas de la Red, S.L.UnclassifiedIPv461
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv653
AS60488Tecnocratica Centro de Datos, S.L.UnclassifiedIPv447
AS43520Meytel Publicidad S.L.UnclassifiedIPv439
AS24482SG.GSHostingIPv4 IPv636
AS202207ASPA CLOUD SLHostingIPv416
AS13030Init7 (Switzerland) Ltd.HostingIPv615
AS197518Rackmarkt SLUnclassifiedIPv612
AS57463NetIX Communications JSCUnclassifiedIPv410
AS8218Zayo Infrastructure France SAUnclassifiedIPv47
AS112DNS-OARCUnclassifiedIPv44
AS20144ICANNUnclassifiedIPv42
AS25152Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv42

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 AS15954, 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
DE-CIX MadridMadrid, Spain185.1.192.93229
ESpanix Madrid Lower LANMadrid, Spain193.149.1.126177
DE-CIX MarseilleMarseille, France185.1.47.105113

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.