asn.dev

Observed topology

AS18978 ENZUINC-

Hosting APNIC

Upstreams 17 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 12
Upstream graph Who carries AS18978, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS18978 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 17

Networks observed carrying traffic for AS18978: 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
AS174Cogent Communications, LLCTransitIPv4 IPv62,361
AS3257GTT Communications Inc.TransitIPv4 IPv61,612
AS6939Hurricane Electric LLCTransitIPv4 IPv6722
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6685
AS137409GSL Networks Pty LTDUnclassifiedIPv4 IPv6615
AS3491PCCW Global (HK) Ltd.TransitIPv4155
AS6461Zayo BandwidthTransitIPv476
AS24482SG.GSHostingIPv4 IPv676
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv672
AS7575Australian Academic and Research Network (AARNet)EducationIPv450

All 17 upstreams →

Transit

Downstream networks

inferred

Networks for which AS18978 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS26739Dash Networks Inc.UnclassifiedIPv4 IPv6681
AS33223-Reserved AS-UnclassifiedIPv4 IPv6211
AS368491st Amendment Encrypted Openness LLCUnclassifiedIPv460

Adjacency

Adjacent networks

All 20

Every AS seen directly next to AS18978 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv62,593
AS3257GTT Communications Inc.TransitIPv4 IPv62,035
AS6939Hurricane Electric LLCTransitIPv4 IPv6849
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6813
AS26739Dash Networks Inc.UnclassifiedIPv4 IPv6681
AS137409GSL Networks Pty LTDUnclassifiedIPv4 IPv6615
AS33223-Reserved AS-UnclassifiedIPv4 IPv6211
AS3491PCCW Global (HK) Ltd.TransitIPv4155
AS24482SG.GSHostingIPv4 IPv691
AS6461Zayo BandwidthTransitIPv476

All 20 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.