Upstream networks
AS237 MERIT-AS-14
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS237: 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 | 1,864 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 870 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 820 |
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 810 |
| AS11537 | Internet2 | Unclassified | IPv4 IPv6 | 417 |
| AS7018 | AT&T Enterprises, LLC | Residential | IPv4 IPv6 | 218 |
| AS11164 | Internet2 | Education | IPv4 IPv6 | 184 |
| AS293 | ESnet | Unclassified | IPv4 | 83 |
| AS3303 | Swisscom (Schweiz) AG | Residential | IPv4 | 81 |
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 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.