Autonomous system
AS38215 SYUHEIUDA-AS-AP - Syuhei Uda
Unclassified APNIC Non-Profit
Summary
Syuhei Uda
individual small japan
The AS handle SYUHEIUDA-AS-AP is held by Syuhei Uda.
What it's used for
- The space carries a single IPv4 prefix
103.164.236.0/24and two IPv6 prefixes, with the netnameSYUHEIUDA-JPregistered to Syuhei Uda. - The inventory consists of 256 IPv4 addresses and 2 IPv6 prefixes, observed against 3 routing neighbours, indicating a small-scale individual or personal network rather than a commercial ISP or transit provider.
- Traffic from this AS is associated with the personal or small-scale technical operations of Syuhei Uda, also known by the handle Caledfwlch Techniques.
Notable
- The registrant Syuhei Uda matches the AS holder, with the netname
SYUHEIUDA-JPconfirming consistent ownership. - The address inventory is minimal, comprising one /24 block and two IPv6 prefixes, typical of a personal or hobbyist autonomous system.
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 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 3 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS38215- Registry name
- SYUHEIUDA-AS-AP
- Registrant
- Syuhei Uda
- Abuse contact
- abuse@caledfwlch.tech
- Registered
- 2021-03-25
- Last changed
- 2021-03-25
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Syuhei Uda
- Also known as
- Caledfwlch Techniques
- Network type
- Non-Profit
- Scope
- Regional
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- IRR as-set
AS-38215- Present at
- 2 exchanges
- Website
- https://www.caledfwlch.tech/
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 · 3 valid, 0 with no ROA
- ROAs
- 4 authorising AS38215
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 8 naming AS38215
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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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