Skip to content
InternetData
HomeCompaniesThe Chinese University of Hong Kong
Education

The Chinese University of Hong Kong

The Chinese University of Hong Kong uses 90,376 IPv4 addresses in 14 ranges, and 1 IPv6 range, by the registry records IP Company reads.

cuhk.edu.hk·Hong Kong

90,376
IPv4 addresses
14
IPv4 ranges
1
IPv6 range
1
AS it operates
1
country

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS3661 The Chinese University of Hong Kong73,984 · 81.86%
  2. AS4641 The Hong Kong Internet Exchange Limited8,192 · 9.06%
  3. AS4515 PCCW IMS Ltd (PCCW Business Internet Access)8 · 0.01%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

  1. Hong Kong90,624 · 100.00%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

ASNNAMETYPEREGISTEREDIPV4
AS3661The Chinese University of Hong KongEducationHong Kong73,984

How its networks peer

Each network's peering policy, traffic, ratio and reach as its operator states them, with the internet exchanges and facilities it is at.

ASNPOLICYTRAFFICRATIOSCOPEEXCHANGESFACILITIES
AS366110

Internet exchanges

The internet exchanges its networks connect at, by the capacity of their ports there: 1 exchange, 1 port and 100 Mbps in all.

EXCHANGEWHEREPORTSCAPACITY
HKIXHong Kong, Hong Kong1100 Mbps

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
70.1 Mbps
median download
111 Mbps
median upload
176
download tests
246
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, a CIDR a row, with the network announcing each.

RANGEIPV4ORIGIN
137.189.0.0/1665,536AS3661
123.255.96.0/198,192AS4641
123.255.72.0/212,048
123.255.80.0/212,048
203.188.64.0/204,096AS3661
123.255.64.0/212,048AS3661
103.29.12.0/221,024
103.49.160.0/221,024AS3661
175.159.224.0/221,024AS3661
43.230.116.0/221,024
43.252.200.0/221,024
202.40.160.0/23512
218.100.16.0/23512
202.40.216.0/24256AS3661
202.82.149.80/298AS4515
2405:3000::/32AS3661

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. The Chinese University of Hong Kong74,752 · 82.71%
  2. Information Technology Services Centre14,336 · 15.86%
  3. Hong Kong Internet Exchange1,024 · 1.13%
  4. CUHK Library256 · 0.28%
  5. THE CHINESE UNIVERSITY OF HONG KONG8 · 0.01%
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.