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AS4743ISIF LIMITED

Hong Kong SAR ChinaRegistryAPNICTypeCarrier

As of 27th September 2026, AS4743 (ISIF LIMITED), a transit carrier registered in Hong Kong SAR China with APNIC, does not originate any prefixes visible to our route collectors. It is seen behind 2 upstream networks, most often AS49304 (SAKURA LINK LIMITED) and AS9516 (SAKURA LINK LIMITED), and in front of 1 downstream network.

At a glance

IPv4 prefixes

0

IPv6 prefixes

0

IPv4 addresses

Unknown

IPv6 /64s

Unknown

Upstream graph

The networks AS4743 is seen behind, one and two hops out, drawn from real AS paths.

AS4743Toward the internet core
Upstream graph for AS4743: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS4743ISIF LIMITEDThis networkAS9516SAKURA LINK LIMIT…AS49304SAKURA LINK LIMIT…AS4229Zenlayer IncAS137409GSL Networks Pty …AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS4743 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS4743
NetworkCountryRelationshipPathsVantage pts
AS49304SAKURA LINK LIMITEDHKPeer3,269145
AS9516SAKURA LINK LIMITEDHKPeer7272

Prefixes

The largest blocks AS4743 originates, widest first.

AS4743 does not originate any prefix visible from our collectors. Transit-only and unused ASNs both look like this.

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