asn.dev

Observed topology

AS18046 DONGFONG-TW - DongFong Technology Co. Ltd.

Residential APNIC

Upstreams 13 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 8
Upstream graph Who carries AS18046, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS18046 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 13

Networks observed carrying traffic for AS18046: 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
AS9002RETN LimitedUnclassifiedIPv4 IPv61,655
AS17408AboveNet Communications TaiwanUnclassifiedIPv41,392
AS23764CTGNetUnclassifiedIPv41,035
AS6939Hurricane Electric LLCTransitIPv4 IPv6747
AS4637Telstra GlobalUnclassifiedIPv4 IPv6647
AS174Cogent Communications, LLCTransitIPv4 IPv6321
AS24482SG.GSHostingIPv4 IPv6107
AS38855Taiwan Digital Streaming Co.UnclassifiedIPv4 IPv698
AS4780Digital United Inc.ResidentialIPv465
AS21859Zenlayer IncHostingIPv463

All 13 upstreams →

Transit

Downstream networks

All 13

Networks for which AS18046 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS984OCTOPUS WEB SOLUTION INCHostingIPv4743
AS38851TNET Communication Inc. 10F., No.78, Sec. 2, Chongxin Rd., Sanchong Dist.,New Taipei City, Taiwan (R.O.C Taiwan 241)ResidentialIPv4416
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.UnclassifiedIPv4290
AS63893Chang Chun Petrochemical Co., Ltd.UnclassifiedIPv4177
AS131655NAN YA PLASTICS CORPORATIONUnclassifiedIPv4122
AS154902SignalPro Technology Co., Ltd.UnclassifiedIPv4121
AS133948DONGFONG INC LIMITEDUnclassifiedIPv4104
AS18413Great Taipei Broadband Company Ltd.UnclassifiedIPv460
AS24169Chuan Chan Co. Ltd.UnclassifiedIPv460
AS63899National Taiwan University of Science and TechnologyUnclassifiedIPv460

All 13 downstreams →

Adjacency

Adjacent networks

All 27

Every AS seen directly next to AS18046 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4 IPv63,012
AS984OCTOPUS WEB SOLUTION INCHostingIPv41,768
AS6939Hurricane Electric LLCTransitIPv4 IPv61,421
AS17408AboveNet Communications TaiwanUnclassifiedIPv41,392
AS23764CTGNetUnclassifiedIPv41,346
AS4637Telstra GlobalUnclassifiedIPv4 IPv61,325
AS38851TNET Communication Inc. 10F., No.78, Sec. 2, Chongxin Rd., Sanchong Dist.,New Taipei City, Taiwan (R.O.C Taiwan 241)ResidentialIPv4416
AS174Cogent Communications, LLCTransitIPv4 IPv6413
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.UnclassifiedIPv4290
AS63893Chang Chun Petrochemical Co., Ltd.UnclassifiedIPv4177

All 27 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.