AS139255 U-NEXT Co.,Ltd. 🇯🇵 JP

Announcing 2 prefixes, seen at the RIS collectors.

IPv4 prefixes

512 (2 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS139255
Name: U-NEXT Co.,Ltd.
Organisation: U-NEXT Co.,Ltd.
Country: 🇯🇵 JP
RIR: APNIC
Allocated: 2019-06-25

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:       AS138554 - AS139577
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:  2017-12-08T06:45:58Z
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:        AS139255
as-name:        U-NEXT-AS-AP
descr:          U-NEXT Co.,Ltd.
country:        JP
org:            ORG-UC3-AP
admin-c:        UCA7-AP
tech-c:         UCA7-AP
abuse-c:        AU268-AP
mnt-lower:      MAINT-U-NEXT-JP
mnt-routes:     MAINT-U-NEXT-JP
mnt-by:         APNIC-HM
mnt-irt:        IRT-U-NEXT-JP
last-modified:  2021-01-19T02:55:12Z
source:         APNIC

irt:            IRT-U-NEXT-JP
address:        MEGURO CENTRAL SQUARE, 3-1-1 Kamiosaki, Shinagawa Tokyo 141-0021
e-mail:         inet-infra@unext.jp
abuse-mailbox:  inet-infra@unext.jp
admin-c:        UCA7-AP
tech-c:         UCA7-AP
auth:           # Filtered
remarks:        inet-infra@unext.jp is invalid
mnt-by:         MAINT-U-NEXT-JP
last-modified:  2025-11-18T00:33:08Z
source:         APNIC

organisation:   ORG-UC3-AP
org-name:       U-NEXT Co.,Ltd.
org-type:       LIR
country:        JP
address:        MEGURO CENTRAL SQUARE
address:        3-1-1 Kamiosaki
phone:          +81367414431
e-mail:         inet-infra@unext.jp
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:17:52Z
source:         APNIC

role:           ABUSE UNEXTJP
country:        ZZ
address:        MEGURO CENTRAL SQUARE, 3-1-1 Kamiosaki, Shinagawa Tokyo 141-0021
phone:          +000000000
e-mail:         inet-infra@unext.jp
admin-c:        UCA7-AP
tech-c:         UCA7-AP
nic-hdl:        AU268-AP
remarks:        Generated from irt object IRT-U-NEXT-JP
remarks:        inet-infra@unext.jp is invalid
abuse-mailbox:  inet-infra@unext.jp
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-09T13:08:32Z
source:         APNIC

role:           U-NEXT CoLtd administrator
address:        MEGURO CENTRAL SQUARE, 3-1-1 Kamiosaki, Shinagawa Tokyo 141-0021
country:        JP
phone:          +81367414431
e-mail:         inet-infra@unext.jp
admin-c:        UCA7-AP
tech-c:         UCA7-AP
nic-hdl:        UCA7-AP
mnt-by:         MAINT-U-NEXT-JP
last-modified:  2019-06-25T05:44:50Z
source:         APNIC