AS Number
AS24290
AS Name
HEARTNET
Org Name
Heart Network Co.,LTD
Country / Region
Japan
Registry

apnic

RegDate

Updated

2009-09-29T06:04:16Z

AS24290 Looking Glass
IPv4Prefixes

1

IPv6Prefixes

0

IPv4 NUMs

2,048

IPv6 NUMs(/64)

0

CIDR Description IP Num
203.174.88.0/21
IRR Valid
heartnet Heart Network Co.,LTD 2048
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS9824 JTCL-JP-AS - JCOM Co., Ltd., JP Japan 4,745,216 38,654,705,664 IPv4 IPv4

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Japan BBIX Tokyo - BroadBand Internet eXchange Tokyo 218.100.6.152 10 Gbps 2018-11-15 12:47:36

Private Peering Facilities

Country / Region Name City Website Updated

Whois Record

as-block AS23552 - AS24575

as-block
descr
APNIC ASN block
remarks
These AS numbers are further assigned by APNIC
to APNIC members and end-users in the APNIC region
AS23889 has been transfered to AfriNIC
admin-c
HM20-AP
tech-c
HM20-AP
mnt-by
APNIC-HM
mnt-lower
APNIC-HM
last-modified
2009-09-29T06:04:16Z
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
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

as-block AS24248 - AS24297

as-block
descr
JPNIC-2Byte-ASBLOCK-AP
for assignment to JPNIC members
country
JP
admin-c
JNIC1-AP
tech-c
JNIC1-AP
remarks
Authoritative information regarding AS Number
assignments made from within this block can be
queried at whois.nic.ad.jp. To only display English output,
add '/e' at the end of command,
e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by
APNIC-HM
mnt-lower
MAINT-JPNIC
last-modified
2009-11-19T01:11:45Z
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
hostmaster@nic.ad.jp
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 AS24290

aut-num
as-name
HEARTNET
descr
Heart Network Co.,LTD
import
from AS4713 100 accept ANY
from AS7522 100 accept ANY
from AS17676 100 accept ANY
export
to AS4713 announce AS24290
to AS7522 announce AS24290
to AS17676 announce AS24290
country
JP
admin-c
NI183JP
tech-c
NI183JP
last-modified
2010-02-25T19:49:49Z
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:       AS23552 - AS24575
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
remarks:        AS23889 has been transfered to AfriNIC
admin-c:        HM20-AP
tech-c:         HM20-AP
mnt-by:         APNIC-HM
mnt-lower:      APNIC-HM
last-modified:  2009-09-29T06:04:16Z
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


as-block:       AS24248 - AS24297
descr:          JPNIC-2Byte-ASBLOCK-AP
descr:          for assignment to JPNIC members
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Authoritative information regarding AS Number
remarks:        assignments made from within this block can be
remarks:        queried at whois.nic.ad.jp. To only display English output,
remarks:        add '/e' at the end of command,
remarks:        e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
last-modified:  2009-11-19T01:11:45Z
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:         hostmaster@nic.ad.jp
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:        AS24290
as-name:        HEARTNET
descr:          Heart Network Co.,LTD
import:         from AS4713 100 accept ANY
import:         from AS7522 100 accept ANY
import:         from AS17676 100 accept ANY
export:         to AS4713 announce AS24290
export:         to AS7522 announce AS24290
export:         to AS17676 announce AS24290
country:        JP
admin-c:        NI183JP
tech-c:         NI183JP
last-modified:  2010-02-25T19:49:49Z
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