AS Number
AS4721
AS Name
JCN
Org Name
JCOM Co., Ltd.
Country / Region
Japan
Registry

apnic

RegDate

Updated

2019-05-20T03:52:26Z

AS4721 Looking Glass
IPv4Prefixes

162

IPv6Prefixes

1

IPv4 NUMs

631,808

IPv6 NUMs(/64)

4,294,967,296

631,808 IPv4 Addresses
CIDR Description IP Num
14.193.0.0/17
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 32768
14.193.0.0/16
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 65536
14.193.128.0/17
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 32768
61.203.224.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
61.203.224.0/19
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 8192
61.203.240.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
110.4.48.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.4.48.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
110.4.56.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.92.80.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.92.80.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
110.92.88.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.93.0.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
110.93.0.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
110.93.4.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
110.173.240.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.173.240.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
110.173.248.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
110.232.0.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
110.232.0.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
110.232.16.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
110.232.128.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
110.232.128.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
110.232.132.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
111.90.0.0/18
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 16384
111.90.0.0/17
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 32768
111.90.64.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
112.137.32.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
112.137.32.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
112.137.40.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
112.137.64.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
112.137.64.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
112.137.96.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
113.52.16.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
113.52.16.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
113.52.24.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
113.61.112.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
113.61.112.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
113.61.120.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
114.134.112.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
114.134.112.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
114.134.120.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
114.134.192.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
114.134.192.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
114.134.224.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
114.142.128.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
114.142.128.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
114.142.132.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
114.198.192.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
114.198.192.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
114.198.208.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
114.198.224.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
114.198.224.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
114.198.228.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
115.42.96.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
115.42.96.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
115.42.104.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
116.70.128.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
116.70.128.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
116.70.160.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
118.83.0.0/17
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 32768
118.83.0.0/16
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 65536
118.83.128.0/17
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 32768
118.86.0.0/16
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 65536
118.86.0.0/15
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 131072
118.87.0.0/16
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 65536
122.255.128.0/18
ROA Signed and Valid IRR Valid
JCN Jupiter Telecommunications Co., Ltd. 16384
122.255.128.0/17
ROA Signed and Valid IRR InValid
JCN Jupiter Telecommunications Co., Ltd. 32768
122.255.192.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
123.98.224.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
123.98.224.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
123.98.240.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
175.41.64.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
175.41.64.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
175.41.96.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
175.103.12.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
175.103.12.0/22
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 1024
175.103.14.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
180.92.32.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
180.92.32.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
180.92.48.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
180.149.160.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
180.149.160.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
180.149.176.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
182.50.192.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
182.50.192.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
182.50.208.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
182.50.224.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
182.50.224.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
182.50.232.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.43.16.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.43.16.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
202.43.24.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.43.68.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
202.43.68.0/22
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 1024
202.43.70.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
202.72.64.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.72.64.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
202.72.72.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.78.176.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.78.176.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
202.78.184.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.83.184.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
202.83.184.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
202.83.188.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
202.178.80.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
202.178.80.0/20
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 4096
202.178.88.0/21
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 2048
203.89.32.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
203.89.32.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
203.89.48.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
203.114.248.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
203.114.248.0/22
IRR InValid
JCN JCOM Co., Ltd. 1024
203.114.250.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
203.124.64.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
203.124.64.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
203.124.80.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
203.153.56.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
203.153.56.0/22
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 1024
203.153.58.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
210.135.192.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
210.135.192.0/19
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 8192
210.135.208.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
210.172.240.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
210.172.240.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
210.172.248.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
211.19.208.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
211.19.208.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
211.19.216.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
218.219.80.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
218.219.80.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
218.219.88.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
219.112.192.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
219.112.192.0/19
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 8192
219.112.208.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
219.113.96.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
219.113.96.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
219.113.104.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
219.117.0.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
219.117.0.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
219.117.8.0/21
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
219.117.160.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
219.117.160.0/19
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 8192
219.117.176.0/20
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 4096
219.124.224.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
219.124.224.0/19
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 8192
219.124.240.0/20
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 4096
220.208.64.0/19
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
220.208.64.0/18
ROA Signed and Valid IRR InValid
JPNIC-NET-JP Japan Network Information Center 16384
220.208.96.0/19
ROA Signed and Valid IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
221.132.128.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
221.132.128.0/18
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 16384
221.132.160.0/19
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 8192
223.165.20.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
223.165.20.0/22
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 1024
223.165.22.0/23
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 512
223.165.32.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
223.165.32.0/19
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 8192
223.165.48.0/20
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 4096
223.223.208.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
223.223.208.0/21
ROA Signed and Valid IRR InValid
JCN JCOM Co., Ltd. 2048
223.223.212.0/22
ROA Signed and Valid IRR Valid
JCN JCOM Co., Ltd. 1024
CIDR Description IP NUMs(prefix /64)
2001:c30::/32
ROA Signed and Valid IRR Valid
JCNET-JPNIC-JP-20020801 Japan Network Information Center 4294967296
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 IPv6 IPv6
IP Address Domain NUMs Domains
14.193.35.4 1 ancient.no-ip.com
14.193.42.78 1 wktk.info.
14.193.53.121 1 s-imanet.com
14.193.55.170 2 makky.org
14.193.64.250 1 www.gammy.org
14.193.69.34 2 thoughtpossible.net
14.193.84.124 1 auqlue42.net
14.193.100.8 1 cache02.j-cnet.jp
14.193.100.41 1 ns1.j-cnet.jp
as-block:       AS4608 - AS4865
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:  2019-05-20T03:52:26Z
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


as-block:       AS4683 - AS4735
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.
remarks:        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:  2023-08-28T04:50:39Z
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:        AS4721
as-name:        JCN
descr:          JCOM Co., Ltd.
import:
export:
country:        JP
admin-c:        JP00124485
tech-c:         JP00124485
last-modified:  2022-02-18T01:33:18Z
source:         JPNIC