Upstream networks
AS13631 CIG-AS
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS13631: 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 |
|---|---|---|---|---|
| AS13335 | Cloudflare, Inc. | Hosting | IPv4 IPv6 | 227 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 156 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 124 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 | 111 |
| AS23764 | CTGNet | Unclassified | IPv4 | 57 |
| AS8220 | COLT Technology Services Group Limited | Hosting | IPv4 | 52 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 | 37 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 | 34 |
| AS24482 | SG.GS | Hosting | IPv4 | 7 |
| AS21859 | Zenlayer Inc | Hosting | IPv4 | 6 |
| AS34549 | meerfarbig GmbH & Co. KG | Hosting | IPv4 | 5 |
| AS22652 | Videotron Ltee | Residential | IPv4 | 4 |
| AS4657 | StarHub Ltd | Residential | IPv4 | 3 |
| AS37721 | Virtual Technologies & Solutions | Residential | IPv4 | 3 |
| AS293 | ESnet | Unclassified | IPv4 | 2 |
| AS17639 | Converge ICT Solutions Inc. | Unclassified | IPv4 | 2 |
| AS48185 | team.blue NV | Unclassified | IPv4 | 2 |
| AS50300 | CustodianDC Limited | Unclassified | IPv4 | 2 |
| AS852 | TELUS Communications Inc. | Residential | IPv4 | 1 |
| AS1221 | Telstra Limited | Mobile | IPv4 | 1 |
| AS3741 | Dimension Data | Unclassified | IPv4 | 1 |
| AS20485 | Joint Stock Company TransTeleCom | Unclassified | IPv4 | 1 |
| AS33891 | Core-Backbone GmbH | Hosting | IPv4 | 1 |
| AS35280 | F5 Networks SARL | Hosting | IPv4 | 1 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 1 |
| AS48362 | Stadtwerke Feldkirch | Residential | IPv4 | 1 |
| AS50304 | Blix Solutions AS | 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 2026-10-12 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.