AS3661
AS3661
APNIC
Education
Data retrieved at
This AS-only summary is estimated from a sample IP within a prefix announced by this AS, not from a specific query. Search a real IP for exact details.
Network
AS Number
AS3661
Company
The Chinese University of Hong Kong
AS Domain
cuhk.edu.hk
Using host.io for pre-visualize domains.
Type
Education
IPv4 Addresses
74,240
IPv6 Addresses
7.92×10²⁸
Registry (RIR)
APNIC
137.189.196.0/24
Abuse Contacts
Announced Prefixes (9)
Netblock
Num. of IPs
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
137.189.196.0/24
Authorized ASN
AS3661
IP Geolocation
Country
Hong Kong
Continent
Asia
European Union
No
Phone prefix
+852
Currency
Hong Kong Dollar (HKD $)
Approximate location (country-level)
Open in Maps