AS133405 RETN Co., Ltd. 🇯🇵 JP

Announcing 2 prefixes, seen at the RIS collectors.

IPv4 prefixes

256 (1 × /24)

IPv6 prefixes

1 × /48

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS133405
Name: RETN Co., Ltd.
Organisation: RETN Co., Ltd.
Country: 🇯🇵 JP
RIR: APNIC
Allocated: 2026-04-13

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

2 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Whois

Fetched from whois.apnic.net

as-block:       AS133120 - AS133631
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2013-09-11T23:52:15Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
address:        South Brisbane
address:        QLD 4101
country:        AU
phone:          +61 7 3858 3100
fax-no:         +61 7 3858 3199
e-mail:         helpdesk@apnic.net
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         hostmaster@apnic.net
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC

aut-num:        AS133405
as-name:        RETNKK-AS-AP
descr:          RETN Co., Ltd.
country:        JP
org:            ORG-RKK1-AP
admin-c:        RKKA1-AP
tech-c:         RKKA1-AP
mnt-by:         APNIC-HM
mnt-irt:        IRT-RETNKK-JP
mnt-routes:     MAINT-RETNKK-JP
mnt-lower:      MAINT-RETNKK-JP
abuse-c:        AR1534-AP
last-modified:  2026-04-14T09:15:43Z
source:         APNIC

irt:            IRT-RETNKK-JP
address:        6-2-31-1917 Toyosu, Koto-ku, Tokyo, 135-0061, Japan, Tokyo Koto-ku 135-0061
e-mail:         peering@retn.net
abuse-mailbox:  abuse@retn.net
admin-c:        RKKA1-AP
tech-c:         RKKA1-AP
auth:           # Filtered
remarks:        abuse@retn.net was validated on 2026-08-18
remarks:        peering@retn.net was validated on 2026-10-06
mnt-by:         MAINT-RETNKK-JP
last-modified:  2026-10-06T13:18:20Z
source:         APNIC

organisation:   ORG-RKK1-AP
org-name:       RETN Co., Ltd.
org-type:       LIR
country:        JP
address:        6-2-31-1917 Toyosu
address:        Koto-ku, Tokyo, 135-0061, Japan
phone:          +85238454700
e-mail:         peering@retn.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2026-03-13T13:24:44Z
source:         APNIC

role:           ABUSE RETNKKJP
country:        ZZ
address:        6-2-31-1917 Toyosu, Koto-ku, Tokyo, 135-0061, Japan, Tokyo Koto-ku 135-0061
phone:          +000000000
e-mail:         peering@retn.net
admin-c:        RKKA1-AP
tech-c:         RKKA1-AP
nic-hdl:        AR1534-AP
remarks:        Generated from irt object IRT-RETNKK-JP
remarks:        abuse@retn.net was validated on 2026-08-18
remarks:        peering@retn.net was validated on 2026-10-06
abuse-mailbox:  abuse@retn.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-10-06T13:18:53Z
source:         APNIC

role:           RETN K K administrator
address:        6-2-31-1917 Toyosu, Koto-ku, Tokyo, 135-0061, Japan, Tokyo Koto-ku 135-0061
country:        JP
phone:          +85238454700
e-mail:         peering@retn.net
admin-c:        RKKA1-AP
tech-c:         RKKA1-AP
nic-hdl:        RKKA1-AP
mnt-by:         MAINT-RETNKK-JP
last-modified:  2026-04-13T01:47:49Z
source:         APNIC