AS24149Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
ChinaRegistryAPNICAs of 11th November 2026, AS24149 (Internet Domain Name System Beijing…), a network registered in China with APNIC, originates 4 IPv4 prefixes covering 1k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 36,497th-largest of the 80,747 networks we see originating IPv4, and the 419th-largest of 617 in China. It is seen behind 2 upstream networks, most often AS174 (Cogent Communications, LLC) and AS4641 (The Hong Kong Internet Exchange Limited). Every one of its announcements has 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 AS24149 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS24149 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
5
adjacent networks
- Upstreams
- 240%
- Peers
- 360%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS174Cogent Communications, LLC |  US | Peer | 392 | 132 |
| AS4641The Hong Kong Internet Exchange Limited |  HK | Peer | 143 | 98 |
Prefixes
The largest blocks AS24149 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 150.242.158.0/24 | 256 | 76/76 |
| 150.242.159.0/24 | 256 | 75/76 |
| 203.119.81.0/24 | 256 | 75/76 |
| 203.119.82.0/24 | 256 | 75/76 |
| 2401:8d00:2::/48 | 65.5k × /64 | 60/63 |
| 2401:8d00:14::/48 | 65.5k × /64 | 60/63 |
| 2401:8d00:15::/48 | 65.5k × /64 | 57/63 |
| 2401:8d00:16::/48 | 65.5k × /64 | 57/63 |
Routing health
How AS24149'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%8
- Invalid0.0%0
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more100.0%8
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 4 prefixes
IPv6 — 4 prefixes
- /4865.5k × /64100.0%4
Recent changes
Announcements that started or stopped since 12th Oct 2026.
No announcement by AS24149 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.