Upstream networks
AS37721 Virtual Technologies & Solutions - Virtual Technologies & Solutions
Residential AFRINIC
Transit
Upstream networks
Networks observed carrying traffic for AS37721: 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 |
|---|---|---|---|---|
| AS6939 | Hurricane Electric LLC | Transit | IPv4 IPv6 | 4,852 |
| AS6461 | Zayo Bandwidth | Transit | IPv4 IPv6 | 497 |
| AS1299 | Arelion Sweden AB | Transit | IPv4 IPv6 | 320 |
| AS174 | Cogent Communications, LLC | Transit | IPv4 IPv6 | 280 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 IPv6 | 263 |
| AS2914 | NTT America, Inc. | Transit | IPv4 IPv6 | 222 |
| AS6830 | Liberty Global Europe Holding B.V. | Residential | IPv4 IPv6 | 217 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | Transit | IPv4 IPv6 | 146 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | Transit | IPv4 | 118 |
| AS13030 | Init7 (Switzerland) Ltd. | Hosting | IPv6 | 91 |
| AS24482 | SG.GS | Hosting | IPv4 IPv6 | 68 |
| AS3257 | GTT Communications Inc. | Transit | IPv4 | 62 |
| AS3741 | Dimension Data | Unclassified | IPv4 | 62 |
| AS12956 | TELEFONICA GLOBAL SOLUTIONS SL | Transit | IPv4 | 62 |
| AS37100 | SEACOM Limited | Unclassified | IPv4 | 62 |
| AS1273 | IDDQD-AS | Business | IPv4 | 6 |
| AS25091 | IP-Max SA | Unclassified | IPv6 | 3 |
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 2026-11-04 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.33M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.