Observed topology

AS30012 ASN-UNIVERSAL-MUSIC-GROUP-INC - Universal Music Group, INC.

Unclassified ARIN

Upstreams 34 carry this network

Downstreams 1 this network carries

Adjacent (IPv4) 35

Adjacent (IPv6) 0

Upstream graph Who carries AS30012, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS30012 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 34

Networks observed carrying traffic for AS30012: 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
AS8220	COLT Technology Services Group Limited	Hosting	IPv4	1,046
AS6461	Zayo Bandwidth	Transit	IPv4	266
AS46887	Crown Castle Fiber LLC	Unclassified	IPv4	254
AS3356	Level 3 Parent, LLC	Transit	IPv4	211
AS20001	Charter Communications Inc	Residential	IPv4	133
AS196773	VIAPASS SAS	Unclassified	IPv4	83
AS577	Bell Canada	Mobile	IPv4	79
AS36866	Jamii Telecommunications Limited	Unclassified	IPv4	61
AS50261	ACE Telecom Kft	Unclassified	IPv4	60
AS5617	Orange Polska Spolka Akcyjna	Mobile	IPv4	59

All 34 upstreams →

Transit

Downstream networks

inferred

Networks for which AS30012 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS4230120000	AS4230120000	Unclassified	IPv4	2

Adjacency

Adjacent networks

All 35

Every AS seen directly next to AS30012 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS8220	COLT Technology Services Group Limited	Hosting	IPv4	1,046
AS6461	Zayo Bandwidth	Transit	IPv4	268
AS46887	Crown Castle Fiber LLC	Unclassified	IPv4	254
AS3356	Level 3 Parent, LLC	Transit	IPv4	211
AS20001	Charter Communications Inc	Residential	IPv4	133
AS196773	VIAPASS SAS	Unclassified	IPv4	83
AS577	Bell Canada	Mobile	IPv4	79
AS36866	Jamii Telecommunications Limited	Unclassified	IPv4	61
AS50261	ACE Telecom Kft	Unclassified	IPv4	60
AS5617	Orange Polska Spolka Akcyjna	Mobile	IPv4	59

All 35 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.