Upstream networks
AS19197 STEFANINI-INC
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS19197: 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 | 260 |
| AS2687 | AT&T Enterprises, LLC | Unclassified | IPv4 | 173 |
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 169 |
| AS5606 | GTS Telecom SRL | Unclassified | IPv4 | 116 |
| AS4230 | CLARO S.A. | Residential | IPv4 | 112 |
| AS5483 | Magyar Telekom Plc. | Mobile | IPv4 | 62 |
| AS31252 | StarNet Solutii SRL | Unclassified | IPv4 | 59 |
| AS31242 | P4 Sp. z o.o. | Mobile | IPv4 | 43 |
| AS12912 | T-Mobile Polska S.A. | Unclassified | IPv4 | 16 |
| AS30600 | Metronet | Residential | IPv4 | 10 |
| AS3549 | Level 3 Parent, LLC | Transit | IPv4 | 4 |
| AS50084 | S.A."Rapid Link" S.R.L. | Residential | 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 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.