Upstream networks
AS21574 Century Telecom Ltda
Unclassified LACNIC
Transit
Upstream networks
Networks observed carrying traffic for AS21574: 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 | 174 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 47 |
| AS1031 | PEER 1031 LLC | Unclassified | IPv4 | 20 |
| AS263444 | Open X Tecnologia Ltda | Unclassified | IPv6 | 19 |
| AS16735 | ALGAR TELECOM S/A | Unclassified | IPv4 | 8 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 6 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 6 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 IPv6 | 5 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 | 4 |
| AS7195 | EDGEUNO S.A.S | Unclassified | IPv6 | 4 |
| AS22652 | Videotron Ltee | Residential | IPv4 IPv6 | 3 |
| AS29632 | Netassist International EOOD | Unclassified | IPv6 | 2 |
| AS34019 | Hivane Association | Unclassified | IPv4 IPv6 | 2 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 IPv6 | 2 |
| AS212024 | Marc Schmitt | Unclassified | IPv4 IPv6 | 2 |
| AS213241 | TECHIT.BE SRL | Residential | IPv4 IPv6 | 2 |
| AS267613 | ELETRONET S.A. | Unclassified | IPv6 | 2 |
| AS293 | ESnet | Unclassified | IPv4 | 1 |
| AS1836 | green.ch AG | Residential | IPv4 | 1 |
| AS6797 | GlobalConnect AB | Unclassified | IPv4 | 1 |
| AS12779 | IT.Gate S.p.A. | Unclassified | IPv4 | 1 |
| AS12859 | BIT BV | Hosting | IPv4 | 1 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv6 | 1 |
| AS20485 | Joint Stock Company TransTeleCom | Unclassified | IPv4 | 1 |
| AS32097 | WholeSale Internet, Inc. | Hosting | IPv4 | 1 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 1 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 1 |
| AS44066 | firstcolo GmbH | 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 2026-10-13 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.