asn.dev

Observed topology

AS25098 NETCALIBRE

Upstreams 10 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 10

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS25098: 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 IPv6386
AS174Cogent Communications, LLCTransitIPv4 IPv6183
AS6939Hurricane Electric LLCTransitIPv4 IPv6112
AS20473The Constant Company, LLCHostingIPv4 IPv662
AS24482SG.GSHostingIPv4 IPv612
AS48185team.blue NVUnclassifiedIPv4 IPv612
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv612
AS57463NetIX Communications JSCUnclassifiedIPv411
AS8218Zayo Infrastructure France SAUnclassifiedIPv61
AS13030Init7 (Switzerland) Ltd.HostingIPv61

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 AS25098 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS577931310 LimitedResidentialIPv4 IPv6358
AS208123SPN Alliance LimitedUnclassifiedIPv460
AS34675Prima Internet Holdings LimitedUnclassifiedIPv460

Adjacency

Adjacent networks

21 shown

Every AS seen directly next to AS25098 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6700
AS577931310 LimitedResidentialIPv4 IPv6358
AS174Cogent Communications, LLCTransitIPv4 IPv6315
AS6939Hurricane Electric LLCTransitIPv4 IPv6130
AS20473The Constant Company, LLCHostingIPv4 IPv662
AS34675Prima Internet Holdings LimitedUnclassifiedIPv460
AS208123SPN Alliance LimitedUnclassifiedIPv460
AS48185team.blue NVUnclassifiedIPv4 IPv614
AS24482SG.GSHostingIPv4 IPv614
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv614
AS57463NetIX Communications JSCUnclassifiedIPv413
AS13030Init7 (Switzerland) Ltd.HostingIPv67
AS8218Zayo Infrastructure France SAUnclassifiedIPv61

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 AS25098, 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
London Network Access PointLondon, United Kingdom5.57.82.36316

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.