Upstream networks
AS13237 LAMBDANET-AS European Backbone of AS13237
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS13237: 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 | 590 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 379 |
| AS5405 | Inter.link GmbH | Unclassified | IPv4 IPv6 | 276 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 194 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 | 96 |
| AS3320 | Deutsche Telekom AG | Mobile | IPv4 IPv6 | 48 |
| AS3333 | Reseaux IP Europeens Network Coordination Centre (RIPE NCC) | Unclassified | IPv4 IPv6 | 45 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 45 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 45 |
| AS42708 | Glesys AB | Unclassified | IPv4 IPv6 | 45 |
| AS50628 | Leonix Telecom SAS | Unclassified | IPv4 IPv6 | 44 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 40 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 IPv6 | 31 |
| AS48185 | team.blue NV | Unclassified | IPv4 IPv6 | 31 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 31 |
| AS50300 | CustodianDC Limited | Unclassified | IPv4 IPv6 | 31 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 30 |
| AS6830 | Liberty Global Europe Holding B.V. | Residential | IPv4 | 25 |
| AS293 | ESnet | Unclassified | IPv4 | 24 |
| AS1836 | green.ch AG | Residential | IPv4 | 24 |
| AS3741 | Dimension Data | Unclassified | IPv4 | 24 |
| AS4657 | StarHub Ltd | Residential | IPv4 | 24 |
| AS12552 | GlobalConnect AB | Unclassified | IPv4 | 24 |
| AS20485 | Joint Stock Company TransTeleCom | Unclassified | IPv4 | 24 |
| AS20766 | Association "Gitoyen" | Unclassified | IPv4 | 24 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 24 |
| AS50304 | Blix Solutions AS | Unclassified | IPv4 | 24 |
| AS56655 | Gigahost AS | Unclassified | IPv4 | 24 |
| AS59919 | Brainbox S.r.l. | Residential | IPv4 | 24 |
| AS212024 | Marc Schmitt | Unclassified | IPv4 | 24 |
| AS9002 | RETN Limited | Unclassified | IPv6 | 20 |
| AS34019 | Hivane Association | Unclassified | IPv6 | 20 |
| AS213241 | TECHIT.BE SRL | Residential | IPv6 | 20 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 1 |
| AS8218 | Zayo Infrastructure France SA | Unclassified | IPv4 | 1 |
| AS15412 | Flag Telecom UK Limited | Unclassified | IPv4 | 1 |
| AS31500 | Global Network Management Inc | Unclassified | IPv4 | 1 |
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.
Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.