Upstream networks
AS25151 CYSO-AS
Hosting RIPE
Transit
Upstream networks
Networks observed carrying traffic for AS25151: 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 |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 410 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 139 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 136 |
| AS6939 | Hurricane Electric LLC | Transit | IPv6 | 31 |
| AS50673 | Serverius Holding B.V. | Unclassified | IPv4 | 22 |
| AS200020 | Stichting NBIP-NaWas | Unclassified | IPv4 | 22 |
| AS42708 | Glesys AB | Unclassified | IPv4 IPv6 | 18 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 17 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 17 |
| AS48185 | team.blue NV | Unclassified | IPv4 IPv6 | 17 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 17 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 15 |
| AS4657 | StarHub Ltd | Residential | IPv4 | 14 |
| AS12552 | GlobalConnect AB | Unclassified | IPv4 | 14 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 14 |
| AS3333 | Reseaux IP Europeens Network Coordination Centre (RIPE NCC) | Unclassified | IPv4 IPv6 | 11 |
| AS34019 | Hivane Association | Unclassified | IPv4 IPv6 | 11 |
| AS50300 | CustodianDC Limited | Unclassified | IPv4 IPv6 | 11 |
| AS3216 | PJSC "Vimpelcom" | Mobile | IPv4 | 8 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 8 |
| AS34927 | iFog GmbH | Hosting | IPv4 | 8 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 6 |
| AS56655 | Gigahost AS | Unclassified | IPv4 | 6 |
| AS9002 | RETN Limited | Unclassified | IPv6 | 3 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv6 | 3 |
| AS25091 | IP-Max SA | Unclassified | IPv6 | 3 |
| AS213241 | TECHIT.BE SRL | Residential | IPv6 | 3 |
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 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.