Observed topology

AS199713 MLL-AS

Unclassified RIPE

Upstreams 19 carry this network

Downstreams 3 this network carries

Adjacent (IPv4) 22

Adjacent (IPv6) 0

Upstream graph Who carries AS199713, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS199713 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 19

Networks observed carrying traffic for AS199713: 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
AS174	Cogent Communications, LLC	Transit	IPv4	246
AS786	Jisc Services Limited	Education	IPv4	183
AS6461	Zayo Bandwidth	Transit	IPv4	183
AS6939	Hurricane Electric LLC	Transit	IPv4	120
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	36
AS50304	Blix Solutions AS	Unclassified	IPv4	24
AS3741	Dimension Data	Unclassified	IPv4	12
AS12552	GlobalConnect AB	Unclassified	IPv4	12
AS12779	IT.Gate S.p.A.	Unclassified	IPv4	12
AS17639	Converge ICT Solutions Inc.	Unclassified	IPv4	12

All 19 upstreams →

Transit

Downstream networks

inferred

Networks for which AS199713 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS49247	East Sussex Fire Authority	Unclassified	IPv4	62
AS49728	Herefordshire Council	Unclassified	IPv4	59
AS197370	Nottinghamshire County Council	Unclassified	IPv4	59

Adjacency

Adjacent networks

All 22

Every AS seen directly next to AS199713 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS174	Cogent Communications, LLC	Transit	IPv4	273
AS786	Jisc Services Limited	Education	IPv4	245
AS6461	Zayo Bandwidth	Transit	IPv4	220
AS6939	Hurricane Electric LLC	Transit	IPv4	140
AS49247	East Sussex Fire Authority	Unclassified	IPv4	62
AS49728	Herefordshire Council	Unclassified	IPv4	59
AS197370	Nottinghamshire County Council	Unclassified	IPv4	59
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	42
AS50304	Blix Solutions AS	Unclassified	IPv4	28
AS3741	Dimension Data	Unclassified	IPv4	14

All 22 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.