asn.dev

Autonomous system

AS63775 YCTNET YAKAGE CABLE TELEVISION

Unclassified APNIC

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Yakage Cable Television

Japan · AI-generated

cable residential japan access

YCTNET is operated by Yakage Cable Television.

What it's used for

  • The address space carries cable television subscriber traffic, evidenced by reverse DNS entries such as host0.26.yct.ne.jp and host255.27.yct.ne.jp.
  • The network announces 2048 IPv4 addresses across 1 prefix (122.202.24.0/21) and maintains 1 observed neighbour, a ratio characteristic of a local access network rather than a transit provider.
  • Traffic from this AS consists of residential broadband and cable TV services for subscribers in the Yakage area of Okayama Prefecture.

Notable

  • The RDAP registrant for the announced prefix is Japan Network Information Center (JPNIC), which is consistent with the AS holder as JPNIC is the regional registry for Japan.
  • Yakage Cable Television is a local cable operator headquartered in Yakage Town, Okayama Prefecture.
  • The inventory consists of a single contiguous /21 block, indicating a compact, self-contained address estate.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7670Enecom,Inc.291

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan1

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS63775
Registry name
YCTNET
Registered
2014-08-25
Last changed
2018-07-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS63775
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
5 naming AS63775

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: 442 networks and 1,772 prefixes, as published 2026-10-15. 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

Cross-check