Observed topology

AS17666 HITACHISUNWAY Unit 13-4, Block F1

Unclassified APNIC NSP

Upstreams 8 carry this network

Downstreams 1 this network carries

Adjacent (IPv4) 8

Adjacent (IPv6) 4

Upstream graph Who carries AS17666, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS17666 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS17666: 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.

AS	Network	Type	Families	Paths seen
AS24482	SG.GS	Hosting	IPv4 IPv6	1,275
AS9930	TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia	Unclassified	IPv4	723
AS2914	NTT America, Inc.	Transit	IPv4	581
AS38001	NewMedia Express Pte Ltd	Hosting	IPv4 IPv6	40
AS55720	Gigabit Hosting Sdn Bhd	Hosting	IPv4	37
AS6939	Hurricane Electric LLC	Transit	IPv6	8
AS45352	IP ServerOne Solutions Sdn Bhd	Unclassified	IPv4	8
AS17639	Converge ICT Solutions Inc.	Unclassified	IPv6	2

Transit

Downstream networks

inferred

Networks for which AS17666 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS140586	Velo Technologies SDN BHD	Unclassified	IPv4	67

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS17666 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS24482	SG.GS	Hosting	IPv4 IPv6	1,307
AS9930	TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia	Unclassified	IPv4	723
AS2914	NTT America, Inc.	Transit	IPv4	594
AS140586	Velo Technologies SDN BHD	Unclassified	IPv4	67
AS38001	NewMedia Express Pte Ltd	Hosting	IPv4 IPv6	41
AS55720	Gigabit Hosting Sdn Bhd	Hosting	IPv4	38
AS136749	KS IT SOLUTIONS SDN BHD	Unclassified	IPv4	20
AS6939	Hurricane Electric LLC	Transit	IPv6	8
AS45352	IP ServerOne Solutions Sdn Bhd	Unclassified	IPv4	8
AS17639	Converge ICT Solutions Inc.	Unclassified	IPv6	2

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.