asn.dev

Observed topology

AS18530 ISOMEDIA-1

Hosting ARIN Cable/DSL/ISP

Upstreams 14 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 30
Adjacent (IPv6) 12
Upstream graph Who carries AS18530, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS18530 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS18530: 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
AS209CenturyLink Communications, LLCResidentialIPv4 IPv61,811
AS6939Hurricane Electric LLCTransitIPv4 IPv61,685
AS11404Wave BroadbandResidentialIPv4 IPv6857
AS174Cogent Communications, LLCTransitIPv4 IPv6228
AS9002RETN LimitedUnclassifiedIPv4118
AS21859Zenlayer IncHostingIPv4 IPv689
AS6461Zayo BandwidthTransitIPv4 IPv684
AS3130RGnet OUUnclassifiedIPv459
AS7575Australian Academic and Research Network AARNetEducationIPv459
AS24482SG.GSHostingIPv459

All 14 upstreams →

Transit

Downstream networks

All 12

Networks for which AS18530 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS10557Connect Northwest Internet Services, LLCUnclassifiedIPv44,778
AS399310South Sound 911UnclassifiedIPv4882
AS397731EliteWork LLCUnclassifiedIPv4480
AS400699KitsapWiFiResidentialIPv4 IPv6102
AS18849Richesin Engineering, LLCUnclassifiedIPv486
AS53340VegasNAP, LLCHostingIPv443
AS16652Riseup NetworksHostingIPv442
AS30170Isomedia, Inc.UnclassifiedIPv4 IPv635
AS22030Zipcon LLCHostingIPv410
AS399524SoundLine CommunicationsUnclassifiedIPv47

All 12 downstreams →

Adjacency

Adjacent networks

All 30

Every AS seen directly next to AS18530 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS209CenturyLink Communications, LLCResidentialIPv4 IPv64,879
AS10557Connect Northwest Internet Services, LLCUnclassifiedIPv44,778
AS11404Wave BroadbandResidentialIPv4 IPv62,775
AS6939Hurricane Electric LLCTransitIPv4 IPv62,512
AS399310South Sound 911UnclassifiedIPv4882
AS397731EliteWork LLCUnclassifiedIPv4480
AS9002RETN LimitedUnclassifiedIPv4 IPv6312
AS174Cogent Communications, LLCTransitIPv4 IPv6228
AS30170Isomedia, Inc.UnclassifiedIPv4 IPv6210
AS7575Australian Academic and Research Network AARNetEducationIPv4183

All 30 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.