AS138457China Academy of Information and Communications Technology
ChinaRegistryAPNICAs of 10th November 2026, AS138457 (China Academy of Information and…), a network registered in China with APNIC, originates 5 IPv4 prefixes covering 1.3k addresses. By IPv4 address space that makes it the 34,021st-largest of the 80,733 networks we see originating IPv4, and the 406th-largest of 617 in China. It is seen behind 1 upstream network, most often AS58466 (CHINANET Guangdong province network). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 20% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS138457 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS138457 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
2
adjacent networks
- Upstreams
- 150%
- Peers
- 150%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS58466CHINANET Guangdong province network | CN | Peer | 109 | 76 |
Prefixes
The largest blocks AS138457 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 45.120.243.0/24 | 256 | 76/76 |
| 103.61.60.0/24 | 256 | 30/76 |
| 103.61.61.0/24 | 256 | 1/76 |
| 103.61.62.0/24 | 256 | 1/76 |
| 103.61.63.0/24 | 256 | 1/76 |
Routing health
How AS138457'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
- Valid100.0%5
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more20.0%1
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%80.0%4
Prefix sizes
IPv4 — 5 prefixes
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS138457 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.