asn.dev

Observed topology

AS59699 LENFIBER-AS Lenfiber S.r.l.

Unclassified RIPE Cable/DSL/ISP

Upstreams 3 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 7
Adjacent (IPv6) 0
Upstream graph Who carries AS59699, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS59699 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS59699: 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.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4264
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4192
AS174Cogent Communications, LLCTransitIPv48

Transit

Downstream networks

inferred

Networks for which AS59699 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS201795Webethical S.r.l.UnclassifiedIPv4177
AS209345Speedline s.r.l.UnclassifiedIPv459
AS209646H & F S.r.l.UnclassifiedIPv458
AS212282Business Research S.r.l.UnclassifiedIPv458

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS59699 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4493
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4309
AS201795Webethical S.r.l.UnclassifiedIPv4177
AS209345Speedline s.r.l.UnclassifiedIPv459
AS209646H & F S.r.l.UnclassifiedIPv458
AS212282Business Research S.r.l.UnclassifiedIPv458
AS174Cogent Communications, LLCTransitIPv414

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-07 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 72.97M 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.