Upstream networks
AS19812 RADIANZ-NUTLEY - BT Americas, Inc
Unclassified ARIN
Transit
Upstream networks
Networks observed carrying traffic for AS19812: 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 |
|---|---|---|---|---|
| AS3356 | Level 3 Parent, LLC | Transit | IPv4 | 299 |
| AS13789 | Unitas Global | Unclassified | IPv4 | 250 |
| AS15570 | PACKETFABRIC (UK) LTD | Unclassified | IPv4 | 236 |
| AS19024 | Unitas Global | Hosting | IPv4 | 122 |
| AS13237 | euNetworks GmbH | Unclassified | IPv4 | 8 |
| AS2856 | British Telecommunications Limited | 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 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.