AS4605Hong Kong Baptist University
Hong Kong SAR ChinaRegistryAPNICAs of 11th November 2026, AS4605 (Hong Kong Baptist University), a network registered in Hong Kong SAR China with APNIC, originates 11 IPv4 prefixes covering 75k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 2,963rd-largest of the 80,747 networks we see originating IPv4, and the 53rd-largest of 760 in Hong Kong SAR China. It is seen behind 3 upstream networks, most often AS3662 (Joint Universities Computer Centre…) and AS10103 (HK Broadband Network Ltd.). 14% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 86% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS4605 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS4605 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
6
adjacent networks
- Upstreams
- 350%
- Peers
- 350%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3662Joint Universities Computer Centre Limited | HK | Peer | 502 | 104 |
| AS10103HK Broadband Network Ltd. | HK | Peer | 363 | 33 |
| AS137207Joint Universities Computer Centre Limited | HK | Peer | 35 | 7 |
Prefixes
The largest blocks AS4605 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 158.182.0.0/16 | 65.5k | 76/76 |
| 175.159.144.0/21 | 2k | 76/76 |
| 202.125.240.0/21 | 2k | 76/76 |
| 175.159.152.0/22 | 1k | 76/76 |
| 175.159.232.0/22 | 1k | 76/76 |
| 175.159.236.0/22 | 1k | 76/76 |
| 202.125.248.0/22 | 1k | 76/76 |
| 175.159.156.0/23 | 512 | 76/76 |
| 158.182.84.0/24 | 256 | 76/76 |
| 175.159.154.0/24 | 256 | 76/76 |
Routing health
How AS4605's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid14.3%2
- Invalid0.0%0
- No ROA85.7%12
Propagation
- Globally propagated90% of full-feed peers or more85.7%12
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%14.3%2
Prefix sizes
IPv4 — 11 prefixes
IPv6 — 3 prefixes
- /4865.5k × /6433.3%1
- /49 and longerAggregated66.7%2
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS4605 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.