asn.dev

Observed topology

AS18186 NEBULA-GLOBAL - Nebula Global LLC

Hosting DROP-listed space ARIN

Upstreams 24 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 38
Adjacent (IPv6) 14
Upstream graph Who carries AS18186, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS18186 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 24

Networks observed carrying traffic for AS18186: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv610,118
AS7473Singapore Telecommunications LtdUnclassifiedIPv4 IPv66,088
AS4637Telstra GlobalUnclassifiedIPv4 IPv64,030
AS6939Hurricane Electric LLCTransitIPv4 IPv63,486
AS17676SoftBank Corp.MobileIPv4 IPv63,026
AS3491PCCW Global (HK) Ltd.TransitIPv42,851
AS17408AboveNet Communications TaiwanUnclassifiedIPv41,088
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv4786
AS8796FASTNET DATA INCHostingIPv4664
AS24482SG.GSHostingIPv4 IPv6545

All 24 upstreams →

Transit

Downstream networks

All 13

Networks for which AS18186 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS137535JT TELECOM INTERNATIONAL PTE.LTD.UnclassifiedIPv42,065
AS211512Nebula Global LimitedUnclassifiedIPv4596
AS133012Cocoa Oriental Network LimitedUnclassifiedIPv4 IPv6583
AS41717Telfly Technology LimitedUnclassifiedIPv4540
AS63902SHINE TELECOM CO., LTD.UnclassifiedIPv4412
AS401276United Cloud IncUnclassifiedIPv4236
AS140227Hong Kong Communications International Co., LimitedUnclassifiedIPv4184
AS4907BGPNET PTE. LTD.HostingIPv4178
AS18427SUSTAINATEGY LIMITEDUnclassifiedIPv4177
AS134997YFNETUnclassifiedIPv4 IPv694

All 13 downstreams →

Adjacency

Adjacent networks

All 39

Every AS seen directly next to AS18186 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv611,199
AS7473Singapore Telecommunications LtdUnclassifiedIPv4 IPv68,869
AS4637Telstra GlobalUnclassifiedIPv4 IPv64,522
AS6939Hurricane Electric LLCTransitIPv4 IPv64,007
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv63,363
AS17676SoftBank Corp.MobileIPv4 IPv63,026
AS137535JT TELECOM INTERNATIONAL PTE.LTD.UnclassifiedIPv42,065
AS17408AboveNet Communications TaiwanUnclassifiedIPv41,090
AS4635Hong Kong Internet Exchange--Route Server 1UnclassifiedIPv4869
AS133012Cocoa Oriental Network LimitedUnclassifiedIPv4 IPv6768

All 39 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.