AS Number
AS139255
AS Name
U-NEXT-AS-AP
Org Name
U-NEXT Co.,Ltd.
Country
Japan
Registry

apnic

RegDate

Updated

2017-12-08T06:45:58Z

AS139255 Looking Glass
IPv4Prefixes

2

IPv6Prefixes

0

IPv4 NUMs

512

IPv6 NUMs(/64)

0

512 IPv4 Addresses
CIDR Description IP Num
103.140.112.0/24
ROA Signed and Valid IRR Valid
U-NEXT-JP U-NEXT Co.,Ltd. 256
103.140.113.0/24
ROA Signed and Valid IRR Valid
U-NEXT-JP U-NEXT Co.,Ltd. 256
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS2497 IIJ - Internet Initiative Japan Inc., JP Japan 3,908,608 17,716,871,168 IPv4 IPv4
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:        6 Cordelia Street
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:  2013-10-23T04:06:51Z
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


as-block:       AS138554 - AS139577
descr:          APNIC ASN block
admin-c:        IA55-AP
tech-c:         IH123-AP
mnt-by:         MNT-APJII-ID
mnt-lower:      MNT-APJII-ID
last-modified:  2026-02-16T10:38:45Z
source:         IDNIC

role:           ID-NIC ADMINISTRATORS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        hostmasters : hostmaster@apjii.or.id
remarks:        ID-NIC administrators role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IA55-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2019-09-18T07:24:58Z
source:         IDNIC

role:           ID-NIC HOSTMASTERS
address:        Indonesian Network Information Center
address:        ID-NIC
address:        Cyber Building 11th Floor
address:        Jakarta 12710
country:        ID
phone:          +62-21-52960634
fax-no:         +62-21-52960635
e-mail:         hostmaster@idnic.net
remarks:        spam and abuse report : abuse@apjii.or.id
remarks:        technical and routing : support@apjii.or.id
remarks:        administrative request : admin@apjii.or.id
remarks:        IDNIC hostmasters role object
admin-c:        IH1-AP
tech-c:         IH1-AP
nic-hdl:        IH123-AP
notify:         hostmaster@idnic.net
mnt-by:         MNT-APJII-ID
last-modified:  2024-07-10T05:48:59Z
source:         IDNIC