asn.dev

Autonomous system

AS131926 CTS-NET - Cable Television Saiki Co. , Ltd.

Unclassified ARIN Cable/DSL/ISP

IPv4 addresses 10.24K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly JP
Exchanges 2 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
BroadBand Internet eXchange TokyoTokyo, Japan101.203.88.40
BroadBand Internet eXchange OsakaOsaka, Japan218.100.9.47

Transit providers

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS17676SoftBank Corp.228
AS9304HGC Global Communications Limited4
AS24482SG.GS4

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

Shape and geography

IPv4 4 prefixes · 10.24K addresses IPv6 0 prefixes

CountryNamePrefixes
JPJapan4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS131926
Registry name
CTS-NET
Registered
2011-08-04
Last changed
2017-11-22
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Cable Television Saiki Co.
Network type
Cable/DSL/ISP
Scope
Asia Pacific
Traffic ratio
Mostly Inbound
Peering policy
Open
Present at
2 exchanges
Website
https://www.saiki.tv

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

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
4 authorising AS131926
ASPA
no ASPA record
IRR
0% registered · 0 of 4 announcements
Route objects
0 naming AS131926

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: 451 networks and 1,853 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

Cross-check