Upstream networks
AS21723 GOCO
Residential ARIN Cable/DSL/ISP
Transit
Upstream networks
Networks observed carrying traffic for AS21723: 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 |
|---|---|---|---|---|
| AS577 | Bell Canada | Mobile | IPv4 IPv6 | 1,511 |
| AS812 | Rogers Communications Canada Inc. | Mobile | IPv4 IPv6 | 1,353 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 | 1,210 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 1,191 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 1,089 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 830 |
| AS852 | TELUS Communications Inc. | Residential | IPv4 IPv6 | 693 |
| AS6327 | Shaw Communications | Residential | IPv4 | 362 |
| AS1403 | EBOX | Residential | IPv4 IPv6 | 312 |
| AS22652 | Videotron Ltee | Residential | IPv4 IPv6 | 306 |
| AS394256 | Tech Futures Interactive Inc. | Unclassified | IPv4 IPv6 | 136 |
| AS24482 | SG.GS | Hosting | IPv4 | 95 |
| AS13335 | Cloudflare, Inc. | Hosting | IPv4 | 49 |
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.