AS211729Yiming Zhang
United StatesRegistryRIPE NCCAs of 24th October 2026, AS211729 (Yiming Zhang), a network registered in the United States with RIPE NCC, originates 1 IPv4 prefix covering 256 addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 59,182nd-largest of the 79,664 networks we see originating IPv4, and the 12,891st-largest of 18,488 in the United States. It is seen behind 17 upstream networks, most often AS44324 (MoeDove LLC) and AS216211 (CYBERVERSE LLC). 91% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% 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 AS211729 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS211729 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
46
adjacent networks
- Upstreams
- 1737%
- Peers
- 2963%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS44324MoeDove LLC | US | Peer | 219 | 100 |
| AS216211CYBERVERSE LLC | US | Peer | 137 | 82 |
| AS204211Shanghai Yingyun Network Technology Co., Ltd. |  CN | Peer | 72 | 67 |
| AS17433Hytron Network Services Limited |  HK | Peer | 61 | 61 |
| AS7720Skywolf Technology LLC | US | Peer | 57 | 54 |
| AS6939Hurricane Electric LLC | US | Peer | 48 | 24 |
| AS51087Bling Network Ltd |  GB | Peer | 40 | 20 |
| AS199310XIN BING XIAN | CN | Peer | 24 | 12 |
| AS40792CYBERVERSE | US | Peer | 18 | 15 |
| AS214439Zhuhai Xiyun Cloud Technology Co., Ltd. | CN | Peer | 10 | 7 |
Prefixes
The largest blocks AS211729 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 44.30.81.0/24 | 256 | 76/76 |
| 2a0f:1cc5:2b40::/44 | 1M × /64 | 63/63 |
| 2a0f:1cc5:2b60::/44 | 1M × /64 | 63/63 |
| 2a0f:1cc5:2b70::/44 | 1M × /64 | 63/63 |
| 2a0f:1cc5:2b4f::/48 | 65.5k × /64 | 63/63 |
| 2a0f:1cc5:2b61::/48 | 65.5k × /64 | 62/63 |
| 2a0f:1cc5:2b62::/48 | 65.5k × /64 | 63/63 |
| 2a0f:1cc5:2b6f::/48 | 65.5k × /64 | 62/63 |
| 2a0f:1cc5:2b71::/48 | 65.5k × /64 | 63/63 |
| 2a0f:1cc5:2b72::/48 | 65.5k × /64 | 61/63 |
Routing health
How AS211729'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
- Valid90.9%10
- Invalid0.0%0
- No ROA9.1%1
Propagation
- Globally propagated90% of full-feed peers or more100.0%11
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 1 prefixes
IPv6 — 10 prefixes
- /441M × /6430.0%3
- /4865.5k × /6470.0%7
Recent changes
Announcements that started or stopped since 24th Sept 2026.
- Withdrawn2a0f:1cc5:2b20::/4418th Oct 2026
- Withdrawn2a0f:1cc5:2b21::/4818th Oct 2026
- Withdrawn2a14:67c1:b401::/4818th Oct 2026
- Announced2a0f:1cc5:2b6f::/4816th Oct 2026
- Withdrawn2a0f:1cc5:2b6f::/4816th Oct 2026
- Withdrawn2a14:67c1:b402::/486th Oct 2026
- Announced2a14:67c1:b402::/484th Oct 2026
- Withdrawn2a14:67c1:b402::/4828th Sept 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.