asn.dev

Observed topology

AS9505 TWGATE-AP Taiwan Internet Gateway

Unclassified APNIC

Upstreams 18 carry this network
Downstreams 39 this network carries
Adjacent (IPv4) 78
Adjacent (IPv6) 25
Upstream graph Who carries AS9505, and who carries them, drawn as a map up to the transit-free core. 14 exchanges Where AS9505 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 18

Networks observed carrying traffic for AS9505: 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 IPv6740
AS6939Hurricane Electric LLCTransitIPv4 IPv6378
AS3356Level 3 Parent, LLCTransitIPv4 IPv6374
AS174Cogent Communications, LLCTransitIPv4 IPv6345
AS9002RETN LimitedUnclassifiedIPv4 IPv6126
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv645
AS24482SG.GSHostingIPv4 IPv645
AS38001NewMedia Express Pte LtdHostingIPv4 IPv645
AS48185team.blue NVUnclassifiedIPv4 IPv645
AS2497Internet Initiative Japan Inc.UnclassifiedIPv436

All 18 upstreams →

Transit

Downstream networks

All 39

Networks for which AS9505 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS18182Sony Network Taiwan LimitedUnclassifiedIPv4 IPv63,953
AS7532Gamania CloudForceHostingIPv4 IPv61,508
AS9924Taiwan Fixed Network, Telco and Network Service Provider.ResidentialIPv41,340
AS55547Unit D,E,F,G 28th FloorUnclassifiedIPv4 IPv6863
AS10126Taiwan Internet GatewayUnclassifiedIPv4 IPv6653
AS9416Hoshin Multimedia Center Inc.ResidentialIPv4 IPv6547
AS45250Vocom International Telecommunications AP AreaHostingIPv4 IPv6547
AS17408AboveNet Communications TaiwanUnclassifiedIPv4468
AS4780Digital United Inc.ResidentialIPv4403
AS9264Academia SinicaEducationIPv4 IPv6241

All 39 downstreams →

Adjacency

Adjacent networks

All 80

Every AS seen directly next to AS9505 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9924Taiwan Fixed Network, Telco and Network Service Provider.ResidentialIPv4 IPv66,742
AS1299Arelion Sweden ABTransitIPv4 IPv66,709
AS174Cogent Communications, LLCTransitIPv4 IPv64,311
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,286
AS18182Sony Network Taiwan LimitedUnclassifiedIPv4 IPv64,121
AS7533Savecom International Inc.UnclassifiedIPv4 IPv62,548
AS7532Gamania CloudForceHostingIPv4 IPv61,682
AS6939Hurricane Electric LLCTransitIPv4 IPv61,468
AS38001NewMedia Express Pte LtdHostingIPv4 IPv61,416
AS17408AboveNet Communications TaiwanUnclassifiedIPv41,277

All 80 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.