Observed topology
AS25180 EXPONENTIAL-E-AS
Unclassified RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS25180: 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.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 802 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 792 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 334 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 193 |
| AS22652 | Videotron Ltee | Residential | IPv4 IPv6 | 91 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 63 |
| AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | Unclassified | IPv4 IPv6 | 47 |
| AS12859 | BIT BV | Hosting | IPv4 IPv6 | 47 |
| AS48185 | team.blue NV | Unclassified | IPv4 IPv6 | 47 |
| AS50300 | CustodianDC Limited | Unclassified | IPv4 IPv6 | 47 |
Transit
Downstream networks
Networks for which AS25180 was observed as the last hop before the origin, meaning it appears to provide them transit.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS4913 | Speedcast Communications, Inc | Unclassified | IPv4 | 640 |
| AS197107 | SERVICE EXPRESS EUROPE LIMITED | Unclassified | IPv4 | 522 |
| AS51553 | Telecom Plus PLC | Unclassified | IPv4 | 357 |
| AS62145 | BANGO.NET Ltd | Unclassified | IPv4 | 230 |
| AS215854 | Exponential-E Ltd. | Unclassified | IPv4 | 174 |
| AS2147 | The Press Association Ltd | Unclassified | IPv4 | 173 |
| AS202901 | Netcall Technology Limited | Unclassified | IPv4 | 172 |
| AS12789 | DMG Media Limited | Unclassified | IPv4 | 138 |
| AS213565 | David Davies | Unclassified | IPv4 IPv6 | 123 |
| AS212413 | Department for Work and Pensions | Unclassified | IPv4 | 120 |
Adjacency
Adjacent networks
Every AS seen directly next to AS25180 in a routing path, in either direction.
| AS | Network | Type | Families | Paths seen |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 2,435 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 2,410 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 996 |
| AS4913 | Speedcast Communications, Inc | Unclassified | IPv4 | 640 |
| AS197107 | SERVICE EXPRESS EUROPE LIMITED | Unclassified | IPv4 | 522 |
| AS51553 | Telecom Plus PLC | Unclassified | IPv4 | 357 |
| AS22652 | Videotron Ltee | Residential | IPv4 IPv6 | 333 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 327 |
| AS62145 | BANGO.NET Ltd | Unclassified | IPv4 | 230 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 IPv6 | 227 |
Provenance
Where this comes from
Derived from routing tables collected at 2026-10-27 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.06M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.
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. 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.
Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.