Upstream networks
AS21351 CANALPLUSTELECOM
Mobile ARIN Cable/DSL/ISP
Transit
Upstream networks
Networks observed carrying traffic for AS21351: 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 | 520 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | Transit | IPv4 IPv6 | 414 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 297 |
| AS30844 | Liquid Telecommunications Ltd | Unclassified | IPv4 IPv6 | 159 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 137 |
| AS12956 | TELEFONICA GLOBAL SOLUTIONS SL | Transit | IPv4 | 122 |
| AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | Mobile | IPv4 IPv6 | 102 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 40 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 IPv6 | 35 |
| AS50628 | Leonix Telecom SAS | Unclassified | IPv4 IPv6 | 31 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 30 |
| AS9002 | RETN Limited | Unclassified | IPv6 | 24 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 17 |
| AS34019 | Hivane Association | Unclassified | IPv6 | 10 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 6 |
| AS20766 | Association "Gitoyen" | Unclassified | IPv4 | 6 |
| AS25091 | IP-Max SA | Unclassified | IPv6 | 5 |
| AS3741 | Dimension Data | Unclassified | IPv4 | 4 |
| AS34927 | iFog GmbH | Hosting | IPv4 | 4 |
| AS9304 | HGC Global Communications Limited | Hosting | IPv4 | 3 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 3 |
| AS35661 | VIRTUA SYSTEMS SAS | Unclassified | IPv6 | 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 2026-10-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.22M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.