subnet.im

AS17433Hytron Network Services Limited

Hong Kong SAR ChinaRegistryAPNIC

As of 10th November 2026, AS17433 (Hytron Network Services Limited), a network registered in Hong Kong SAR China with APNIC, originates 1 IPv6 prefix. It is seen behind 20 upstream networks, most often AS3356 (Lumen (Level 3)) and AS3491 (PCCW Global (HK) Ltd.), and in front of 79 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

1

IPv4 addresses

0

IPv6 /64s

65.5k

Upstream graph

The networks AS17433 is seen behind, one and two hops out, drawn from real AS paths.

AS17433Toward the internet core
Upstream graph for AS17433: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS17433Hytron Network Se…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS137409GSL Networks Pty …AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS8529Zain Omantel Inte…AS32590Valve Corporation

Networks observed one and two hops upstream of AS17433 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

230

adjacent networks

Upstreams
209%
Peers
13157%
Downstreams
7934%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS17433
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer12,977133
AS3491PCCW Global (HK) Ltd.HKPeer9,781136
AS137409GSL Networks Pty LTDAUPeer9,101127
AS174Cogent Communications, LLCUSPeer6,670122
AS6453TATA Communications (America) IncUSPeer3,14889
AS6939Hurricane Electric LLCUSPeer2,62229
AS7713PT Telkom Indonesia TbkIDPeer79010
AS35280F5 Networks SARLFRPeer6265
AS49544i3D.net B.VNLPeer5702
AS24482SG.GSSGPeer4105

Prefixes

The largest blocks AS17433 originates, widest first.

Largest prefixes originated by AS17433
PrefixAddressesVisibility
2401:b60:e202::/4865.5k × /6461/63

Routing health

How AS17433's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%1
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS17433 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.