AS4158
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
AS4158
Company
City University of Hong Kong
AS Domain
cityu.edu.hk
Using host.io for pre-visualize domains.
Type
Education
IPv4 Addresses
83,200
IPv6 Addresses
1.20×10²⁴
Registry (RIR)
APNIC
203.188.80.0/21
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
203.188.80.0/21
Authorized ASN
Not available
IP Geolocation
Country
Hong Kong
Continent
Asia
European Union
No
Phone prefix
+852
Currency
Hong Kong Dollar (HKD $)