asn.dev

Observed topology

AS8899 DEUTSCHE-GLASFASER

Residential RIPE

Upstreams 19 carry this network
Downstreams 2 this network carries
Adjacent (IPv4) 22
Adjacent (IPv6) 17
Upstream graph Who carries AS8899, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS8899 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 19

Networks observed carrying traffic for AS8899: 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
AS6461Zayo BandwidthTransitIPv4400
AS6939Hurricane Electric LLCTransitIPv4107
AS174Cogent Communications, LLCTransitIPv456
AS34549meerfarbig GmbH & Co. KGHostingIPv439
AS1299Arelion Sweden ABTransitIPv436
AS33891Core-Backbone GmbHHostingIPv426
AS1836green.ch AGResidentialIPv413
AS6797GlobalConnect ABUnclassifiedIPv413
AS8551Bezeq International Ltd.UnclassifiedIPv413
AS12779IT.Gate S.p.A.UnclassifiedIPv413

All 19 upstreams →

Transit

Downstream networks

inferred

Networks for which AS8899 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS42652inexio Informationstechnologie und Telekommunikation GmbhUnclassifiedIPv4 IPv62,393
AS60294Deutsche Glasfaser Wholesale GmbHResidentialIPv4 IPv61,272

Adjacency

Adjacent networks

All 26

Every AS seen directly next to AS8899 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS42652inexio Informationstechnologie und Telekommunikation GmbhUnclassifiedIPv4 IPv63,318
AS6461Zayo BandwidthTransitIPv4 IPv62,864
AS60294Deutsche Glasfaser Wholesale GmbHResidentialIPv4 IPv61,765
AS6939Hurricane Electric LLCTransitIPv4 IPv6817
AS1299Arelion Sweden ABTransitIPv4 IPv6384
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6334
AS33891Core-Backbone GmbHHostingIPv4159
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6124
AS24482SG.GSHostingIPv4 IPv6114
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6114

All 26 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.