AS131941 - ENTSU-NET - Entsu Co.,Ltd., JP

Japan
AS Number
AS131941
AS Name
ENTSU-NET
Org Name
Entsu Co.,Ltd.
Country / Region
Japan
Registry

apnic

RegDate

Updated

2009-09-29T05:34:08Z

AS131941 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

0

IPv4 NUMs

1,024

IPv6 NUMs(/64)

0

CIDR Description IP Num
103.121.44.0/24
IRR Parent Valid
ENTSU Entsu Co.,Ltd. 256
103.121.44.0/23
IRR Parent Valid
ENTSU Entsu Co.,Ltd. 512
103.121.44.0/22
IRR Valid
ENTSU Entsu Co.,Ltd. 1024
103.121.45.0/24
IRR Parent Valid
ENTSU Entsu Co.,Ltd. 256
103.121.46.0/24
IRR Parent Valid
ENTSU Entsu Co.,Ltd. 256
103.121.47.0/24
IRR Parent Valid
ENTSU Entsu Co.,Ltd. 256
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS10099 UNICOM-Global - China Unicom (Hong Kong) Operations Limited, HK Hong Kong 34,560 4,294,967,296 IPv4 IPv4
AS23764 CTGNet - China Telecom Global Limited, HK Hong Kong 50,432 1,900,544 IPv4 IPv4

Whois Record

as-block AS131072 - AS132095

as-block
descr
APNIC 32-bit ASN block
remarks
These AS numbers are further assigned by APNIC
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
2009-09-29T05:34:08Z
source
APNIC

role APNIC Hostmaster

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

as-block AS131905 - AS131992

as-block
descr
JPNIC-4Byte-ASBLOCK-AP
country
JP
admin-c
JNIC1-AP
tech-c
JNIC1-AP
remarks
for assignment to JPNIC members
Authoritative information regarding AS Number
assignments made from within this block can also be
queried at whois.nic.ad.jp
mnt-by
MAINT-JPNIC
mnt-lower
MAINT-JPNIC
last-modified
2016-01-27T00:24:03Z
source
APNIC

role Japan Network Information Center

role
Japan Network Information Center
address
Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
Chiyoda-ku, Tokyo 101-0047, Japan
country
JP
phone
+81-3-5297-2311
fax-no
+81-3-5297-2312
e-mail
admin-c
JI13-AP
tech-c
JE53-AP
nic-hdl
JNIC1-AP
mnt-by
MAINT-JPNIC
last-modified
2022-01-05T03:04:02Z
source
APNIC

aut-num AS131941

aut-num
as-name
ENTSU-NET
descr
Entsu Co.,Ltd.
import
from AS2914 100 accept ANY
from AS4809 100 accept ANY
from AS10099 100 accept ANY
export
to AS2914 announce AS131941
to AS4809 announce AS131941
to AS10099 announce AS131941
country
JP
admin-c
GS5938JP
tech-c
GS5938JP
last-modified
2018-08-28T03:55:07Z
remarks
This information has been partially mirrored by APNIC from
JPNIC. To obtain more specific information, please use the
JPNIC WHOIS Gateway at
http://www.nic.ad.jp/en/db/whois/en-gateway.html or
whois.nic.ad.jp for WHOIS client. (The WHOIS client
defaults to Japanese output, use the /e switch for English
output)
source
JPNIC
 

as-block:       AS131072 - AS132095
descr:          APNIC 32-bit 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:  2009-09-29T05:34:08Z
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:         [email protected]
admin-c:        AMS11-AP
tech-c:         AH256-AP
nic-hdl:        HM20-AP
remarks:        Administrator for APNIC
notify:         [email protected]
mnt-by:         MAINT-APNIC-AP
last-modified:  2026-08-26T00:40:00Z
source:         APNIC


as-block:       AS131905 - AS131992
descr:          JPNIC-4Byte-ASBLOCK-AP
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        for assignment to JPNIC members
remarks:        Authoritative information regarding AS Number
remarks:        assignments made from within this block can also be
remarks:        queried at whois.nic.ad.jp
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
last-modified:  2016-01-27T00:24:03Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         [email protected]
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC


aut-num:        AS131941
as-name:        ENTSU-NET
descr:          Entsu Co.,Ltd.
import:         from AS2914 100 accept ANY
import:         from AS4809 100 accept ANY
import:         from AS10099 100 accept ANY
export:         to AS2914 announce AS131941
export:         to AS4809 announce AS131941
export:         to AS10099 announce AS131941
country:        JP
admin-c:        GS5938JP
tech-c:         GS5938JP
last-modified:  2018-08-28T03:55:07Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC