asn.dev

Observed topology

AS17709 APT - Asia Pacific Telecom

Unclassified APNIC NSP

Upstreams 6 carry this network
Downstreams 18 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 21
Upstream graph Who carries AS17709, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS17709 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS17709: 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
AS4780Digital United Inc.ResidentialIPv4 IPv63,877
AS4637Telstra GlobalUnclassifiedIPv4164
AS6939Hurricane Electric LLCTransitIPv4 IPv6147
AS12389PJSC RostelecomResidentialIPv443
AS24482SG.GSHostingIPv4 IPv622
AS9002RETN LimitedUnclassifiedIPv4 IPv63

Transit

Downstream networks

All 18

Networks for which AS17709 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS131596TBCResidentialIPv4 IPv629,422
AS24154Asia Pacific Broadband Fixed Lines Co., Ltd.UnclassifiedIPv4 IPv619,737
AS7482Asia Pacific On-line Service Inc.ResidentialIPv4 IPv64,504
AS9311HITRON TECHNOLOGY INC.UnclassifiedIPv4 IPv64,283
AS131591Ambit Microsystem CorporationUnclassifiedIPv4 IPv62,207
AS24155Asia Pacific Broadband Wireless Communications IncUnclassifiedIPv4 IPv61,712
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.UnclassifiedIPv4 IPv6783
AS131142Asia Pacific On-Line Service Inc.UnclassifiedIPv4 IPv6675
AS131601Dynamic Computing TechnologyUnclassifiedIPv4354
AS22787CommScope Technologies LLC.UnclassifiedIPv4 IPv6148

All 18 downstreams →

Adjacency

Adjacent networks

All 26

Every AS seen directly next to AS17709 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4780Digital United Inc.ResidentialIPv4 IPv666,078
AS131596TBCResidentialIPv4 IPv629,422
AS24154Asia Pacific Broadband Fixed Lines Co., Ltd.UnclassifiedIPv4 IPv619,737
AS7482Asia Pacific On-line Service Inc.ResidentialIPv4 IPv64,504
AS9311HITRON TECHNOLOGY INC.UnclassifiedIPv4 IPv64,283
AS131591Ambit Microsystem CorporationUnclassifiedIPv4 IPv62,207
AS24155Asia Pacific Broadband Wireless Communications IncUnclassifiedIPv4 IPv62,131
AS6939Hurricane Electric LLCTransitIPv4 IPv61,392
AS4637Telstra GlobalUnclassifiedIPv4 IPv61,196
AS131584Taiwan Intelligent Fiber Optic Network Co.,Ltd.UnclassifiedIPv4 IPv6783

All 26 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M 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.