AS4158 City University of Hong Kong
AS4158 (CITYUNI-AS-AP) is registered to City University of Hong Kong in HK. It originates 11 prefixes in the global routing table.
Who holds AS4158
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS4158 announces
Prefixes originated by AS4158 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
RPKI valid RPKI invalid no ROA covers it
Who AS4158 is reached through
The AS just before AS4158 in the paths our looking glass collectors hold, for 11 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| APNIC | CITYUNI-AS-AP | APNIC-HM |
| NTTCOM | CITYU-HK-AS | MAINT-CITYUHK |
Route objects with origin AS4158: RADB 11 · NTTCOM 9