Upstream networks
AS43037 SEZNAM-
Hosting RIPE Content
Transit
Upstream networks
Networks observed carrying traffic for AS43037: 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 |
|---|---|---|---|---|
| AS5610 | O2 Czech Republic, a.s. | Unclassified | IPv4 IPv6 | 207 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 117 |
| AS29208 | Quantcom, a.s. | Unclassified | IPv4 IPv6 | 51 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 IPv6 | 35 |
| AS1836 | green.ch AG | Residential | IPv4 IPv6 | 12 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 12 |
| AS29504 | Freenet Liberec, z.s. | Unclassified | IPv4 IPv6 | 12 |
| AS34019 | Hivane Association | Unclassified | IPv4 IPv6 | 12 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 IPv6 | 12 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 12 |
| AS212024 | Marc Schmitt | Unclassified | IPv4 IPv6 | 12 |
| AS12859 | BIT BV | Hosting | IPv4 IPv6 | 11 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 11 |
| AS6797 | GlobalConnect AB | Unclassified | IPv4 | 6 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 6 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv6 | 6 |
| AS20485 | Joint Stock Company TransTeleCom | Unclassified | IPv4 | 6 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 6 |
| AS47232 | ISP Alliance a.s. | Residential | IPv4 | 6 |
| AS56662 | Marcin Gondek | Unclassified | IPv6 | 6 |
| AS213241 | TECHIT.BE SRL | Residential | IPv6 | 6 |
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 2026-10-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.