Observed topology

AS20746 ASN-IDC Telecom Italia S.p.A.

Unclassified RIPE

Upstreams 2 carry this network

Downstreams 10 this network carries

Adjacent (IPv4) 12

Adjacent (IPv6) 2

Upstream graph Who carries AS20746, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS20746 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS20746: 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
AS3269	Telecom Italia S.p.A.	Residential	IPv4 IPv6	19,534
AS6762	TELECOM ITALIA SPARKLE S.p.A.	Transit	IPv4	58

Transit

Downstream networks

inferred

Networks for which AS20746 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS54253	Oracle Corporation	Unclassified	IPv4	826
AS9076	Retelit Digital Services S.p.A.	Unclassified	IPv4	232
AS207157	CAME S.P.A.	Unclassified	IPv4	116
AS44920	Si.TEK Informatica Srl	Unclassified	IPv4	62
AS15472	TERRALINK S.R.L.	Unclassified	IPv4	59
AS20580	Italia S.p.A.	Unclassified	IPv4	59
AS60049	CPL CONCORDIA Soc. Coop.	Unclassified	IPv4	59
AS209071	Ricca IT S.r.l.	Unclassified	IPv4	59
AS29270	Triskel srl	Unclassified	IPv4	58
AS35793	Acronis International GmbH	Unclassified	IPv4 IPv6	7

Adjacency

Adjacent networks

All 12

Every AS seen directly next to AS20746 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS3269	Telecom Italia S.p.A.	Residential	IPv4 IPv6	21,071
AS54253	Oracle Corporation	Unclassified	IPv4	826
AS9076	Retelit Digital Services S.p.A.	Unclassified	IPv4	232
AS207157	CAME S.P.A.	Unclassified	IPv4	116
AS44920	Si.TEK Informatica Srl	Unclassified	IPv4	62
AS15472	TERRALINK S.R.L.	Unclassified	IPv4	59
AS20580	Italia S.p.A.	Unclassified	IPv4	59
AS60049	CPL CONCORDIA Soc. Coop.	Unclassified	IPv4	59
AS209071	Ricca IT S.r.l.	Unclassified	IPv4	59
AS6762	TELECOM ITALIA SPARKLE S.p.A.	Transit	IPv4	58

All 12 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.