Autonomous system
AS204921 YUNMEE-NETWORK
Unclassified RIPE Educational/Research
Summary
YunZheng Network
research academic anycast uk
The AS handle YUNMEE-NETWORK is held by YunZheng Network.
What it's used for
- The address space carries research and anycast services, as indicated by the netnames
NET-YUNZHENG-RESEARCH-APACandYunZhengLAB-Orbit-Anycast. - The AS announces 768 IPv4 addresses across 2 prefixes and 13 IPv6 prefixes, while maintaining 43 observed neighbours. This ratio of a small address inventory against a high number of peering partners indicates a transit or research network role rather than a large access provider.
- Traffic from this AS consists of research data, academic collaboration, and anycast service endpoints, consistent with its classification as an educational and research network.
Notable
- The registrant
zhenyun sunmatches the AS holder and the netnames for both announced IPv4 prefixes. - The address inventory is compact, consisting of a single /23 and a single /24 in IPv4, alongside a set of /46 to /48 prefixes in IPv6.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 3 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Local Internet Exchange Frankfurt | Frankfurt, Germany | 185.1.166.196 |
| Taipei Internet Exchange (TPIX) | Taipei, Taiwan | 203.163.223.113 |
| Student & Technology United Internet Exchanges | Taipei, Taiwan | 103.158.187.191 |
Transit providers
20 upstream, 1 downstream and 34 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 13 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 15 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS204921- Registry name
- YunZheng-Network
- Registrant
- zhenyun sun
- Abuse contact
- noc@as204921.net
- Registered
- 2025-10-10
- Last changed
- 2026-09-09
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- ZHENYUN VNET RESEARCH NETZ
- Also known as
- 芸崢 - yunzheng.space
- Network type
- Educational/Research
- Scope
- Global
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
RADB::AS-YUNZHENG- Present at
- 11 exchanges
- Facilities
- 4 facilities
- Website
- https://as204921.net
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 25 valid, 0 with no ROA
- ROAs
- 6 authorising AS204921
- ASPA
- 16 declared providers
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 42 naming AS204921
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 445 networks and 1,817 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere