Education

AS4528 The University of Hong KongASN lookup: IP ranges, prefixes and network type

AS4528 is the autonomous system number (ASN) announced by The University of Hong Kong. It announces 8 prefixes, 83,712 IPv4 addresses in total. Every address inside those ranges is routed by this operator, which is what makes the number the shortest answer to who runs a given address.

AS4528 at a glance

Reference data for AS4528
OrganisationThe University of Hong Kong
Autonomous systemAS4528
Network typeEducation
IPv4 prefixes6
IPv6 prefixes2
IPv4 addresses83,712Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale.
In known VPN ranges0 of 6 prefixes
In known datacenter ranges0 of 6 prefixes

The last two rows are a second opinion, counted against the X4BNet VPN and datacenter range lists rather than read off the operator name. A network with most of its prefixes in the VPN list is carrying anonymised traffic whatever it calls itself.

Sample prefixes

The largest ranges The University of Hong Kong announces, biggest first. These are a sample and not the full routing table: 8 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.

The largest prefixes announced by AS4528
PrefixFamilyAddresses
147.8.0.0/16IPv465,536
175.159.160.0/19IPv48,192
202.189.96.0/19IPv48,192
175.159.212.0/22IPv41,024
175.159.158.0/23IPv4512
202.45.128.0/24IPv4256
2001:ce0:2::/48IPv6Not counted
2001:ce0:2200::/40IPv6Not counted
Live check

Look up an address on AS4528

The field is prefilled with 147.8.0.1, the first address of the largest range above. Change it for one from your own logs and you get the network, the operator and the verdict for that specific address.

What AS4528 means for detection

Registry data does not say what kind of network The University of Hong Kong runs, and this page will not guess. Ownership alone cannot settle it: the name is the only clue an ASN carries about purpose, and this one carries none. A single address on it can still be classified, because that uses behaviour and range membership rather than the operator's name. Run one below and see what comes back.

The verdict for a single address is never settled by the ASN alone. It is the starting point, and IP Detection adds range membership, behaviour and history on top of it before it answers.

Related networks

Cite or call this

The same page as JSON

No key and no signup. This is the endpoint this page is rendered from, so anything you read here you can script against.

curl https://ipscanner.io/v1/asn/directory/AS4528

IPScanner. AS4528 The University of Hong Kong, ASN directory. https://ipscanner.io/fr/asn/as4528. Derived from MaxMind GeoLite2.