Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS18136

Announcement observedAPNIC

CTA - JCOM Co., Ltd. · CTA

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active9/30/2026, 21:47:40Snapshot expired

View network topology RDAP registration

ASN: AS18136
Registration country: Japan
Name: CTA - JCOM Co., Ltd.
Abbreviation: CTA
Registration date: Not recorded
Status: Announcement observed
RIR: APNIC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
117.53.0.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
117.53.0.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
117.53.16.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
117.53.32.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
117.53.32.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
117.53.36.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.112.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.80.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.80.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.88.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
219.105.96.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.128.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.128.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.136.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.64.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid
27.126.96.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/16/2026, 16:00:00	10/24/2026, 16:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: CTA - JCOM Co., Ltd.
RIR: APNIC
Registration country: Japan
Registration date: Not recorded
Abuse contact: Not recorded

Snapshot trend

9/30/2026, 21:47:4018 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap