asn.dev

Observed topology

AS199524 GCORE

Hosting RIPE Content

Upstreams 106 carry this network
Downstreams 86 this network carries
Adjacent (IPv4) 187
Adjacent (IPv6) 83
Upstream graph Who carries AS199524, and who carries them, drawn as a map up to the transit-free core. 99 exchanges Where AS199524 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 106

Networks observed carrying traffic for AS199524: 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
AS1299Arelion Sweden ABTransitIPv4 IPv66,496
AS6939Hurricane Electric LLCTransitIPv4 IPv64,441
AS174Cogent Communications, LLCTransitIPv4 IPv63,070
AS3491PCCW Global HK Ltd.TransitIPv4 IPv61,849
AS2914NTT America, Inc.TransitIPv4 IPv61,715
AS3356Level 3 Parent, LLCTransitIPv4 IPv6911
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6887
AS3257GTT Communications Inc.TransitIPv4 IPv6794
AS6453TATA COMMUNICATIONS AMERICA INCTransitIPv4 IPv6768
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv6555

All 106 upstreams →

Transit

Downstream networks

All 86

Networks for which AS199524 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS202422G-Core Labs S.A.HostingIPv415,653
AS51191Core-Backbone GmbHUnclassifiedIPv63,640
AS204035oneCorp GmbHHostingIPv41,062
AS200660QONZER LTDUnclassifiedIPv4941
AS198037SPACECORE SOLUTION LTDUnclassifiedIPv4 IPv6856
AS38701Piranha SystemsUnclassifiedIPv4821
AS59245G-Core Labs S.AUnclassifiedIPv4 IPv6537
AS213482Waterfall Technologies LtdHostingIPv4 IPv6516
AS219190EuphoriaTech LimitedUnclassifiedIPv4472
AS131657Hong Da Storage Equipment Co., Ltd.UnclassifiedIPv4400

All 86 downstreams →

Adjacency

Adjacent networks

All 195

Every AS seen directly next to AS199524 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS202422G-Core Labs S.A.HostingIPv415,711
AS1299Arelion Sweden ABTransitIPv4 IPv613,265
AS6939Hurricane Electric LLCTransitIPv4 IPv610,724
AS174Cogent Communications, LLCTransitIPv4 IPv66,388
AS3491PCCW Global HK Ltd.TransitIPv4 IPv64,059
AS2914NTT America, Inc.TransitIPv4 IPv63,698
AS51191Core-Backbone GmbHUnclassifiedIPv63,640
AS3257GTT Communications Inc.TransitIPv4 IPv62,779
AS6453TATA COMMUNICATIONS AMERICA INCTransitIPv4 IPv61,528
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,439

All 195 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.