AS133119China Unicom IP network
ChinaRegistryAPNICTypeEyeballAs of 27th September 2026, AS133119 (China Unicom IP network), an access network registered in China with APNIC, originates 29 IPv4 prefixes covering 221k addresses and 8 IPv6 prefixes. By IPv4 address space that makes it the 1,234th-largest of the 79,525 networks we see originating IPv4, and the 80th-largest of 607 in China. It is seen behind 1 upstream network, most often AS4837 (China Unicom Backbone). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 49% of its routes reach at least 90% of full-feed peers, and 19 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS133119 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS133119 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
4
adjacent networks
- Upstreams
- 125%
- Peers
- 375%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS4837China Unicom Backbone | CN | Peer | 1,725 | 143 |
Prefixes
All 37The largest blocks AS133119 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 116.181.0.0/16 | 65.5k | 80/81 |
| 101.36.128.0/17 | 32.8k | 10/81 |
| 120.52.0.0/17 | 32.8k | 80/81 |
| 120.52.128.0/17 | 32.8k | 79/81 |
| 122.14.192.0/18 | 16.4k | 11/81 |
| 123.58.96.0/19 | 8.2k | 80/81 |
| 120.133.64.0/20 | 4.1k | 10/81 |
| 120.133.80.0/20 | 4.1k | 10/81 |
| 123.58.0.0/20 | 4.1k | 79/81 |
| 123.58.240.0/20 | 4.1k | 80/81 |
Routing health
How AS133119'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%37
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more48.6%18
- Partially propagated40% to 90%5.4%2
- Seen by few peersUnder 40%45.9%17
Prefix sizes
IPv4 — 29 prefixes
IPv6 — 8 prefixes
- /324.3B × /6412.5%1
- /4865.5k × /6487.5%7
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS133119 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.