Autonomous system
AS208618 CYY-AS
Unclassified APNIC Educational/Research
Summary
CYY Personal Experiment Network
research ipv6 personal
The AS handle CYY-AS is held by Yangyu Chen.
What it's used for
- The space carries IPv6 traffic, with announced prefixes including
2406:840:f990::/47,2406:840:f992::/47,2406:840:f994::/46,2406:840:f998::/45, and2a0e:aa06:470::/44. - The network announces 5 IPv6 prefixes and 0 IPv4 addresses, with 3 observed neighbours, indicating a small-scale research or experimental network rather than a commercial transit or access provider.
- Traffic from this AS consists of research and experimental data, associated with the operator's academic and technical projects.
Notable
- The registry holder is Yangyu Chen, consistent with the PeeringDB description of the network as an educational and research initiative.
- The address inventory is entirely IPv6, with no IPv4 space announced, reflecting a modern, IPv6-first experimental setup.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CN | China | 2 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS208618- Registry name
- CYY-AS
- Registrant
- CYY-MNT
- Abuse contact
- abuse-cyy@cyyself.name
- Registered
- 2019-07-02
- Last changed
- 2026-10-09
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Yangyu Chen
- Also known as
- CYY Personal Experiment Network
- Network type
- Educational/Research
- Scope
- Asia Pacific
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Website
- http://as208618.cyyself.name
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 · 8 valid, 0 with no ROA
- ROAs
- 2 authorising AS208618
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 32 naming AS208618
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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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