AS Number
AS4693
AS Name
CSK
Org Name
CSK-IT MANAGEMENT CORPORATION
Country / Region
Japan
Registry

apnic

RegDate

Updated

2019-05-20T03:52:26Z

AS4693 Looking Glass
IPv4Prefixes

7

IPv6Prefixes

1

IPv4 NUMs

45,056

IPv6 NUMs(/64)

4,294,967,296

45,056 IPv4 Addresses
CIDR Description IP Num
203.140.0.0/19
IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
203.179.32.0/19
IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
210.159.96.0/19
IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
210.166.96.0/19
IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
210.249.192.0/19
IRR Valid
JPNIC-NET-JP Japan Network Information Center 8192
211.7.192.0/21
IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
211.7.208.0/21
IRR Valid
JPNIC-NET-JP Japan Network Information Center 2048
CIDR Description IP NUMs(prefix /64)
2400:af80::/32
IRR Valid
CSK-ITO-JPNIC-JP-20140303 Japan Network Information Center 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 531,712 282,635,960,647,680 IPv4 IPv4
AS8220 COLT - COLT Technology Services Group Limited, GB United Kingdom 1,361,664 25,770,786,816 IPv4 IPv4 IPv6 IPv6
AS17686 ACCELIA - ACCELIA, JP Japan 63,488 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 97,792 375,543,758,848 IPv4 IPv4 IPv6 IPv6
AS59105 HOMENOC - Home NOC Operators Group, JP Japan 2,048 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS4862 EQUANT-ASIA - Equant Inc, HK Hong Kong 0 0 IPv6 IPv6
AS2516 KDDI - KDDI CORPORATION, JP Japan 18,168,576 2,757,369,069,568 IPv4 IPv4
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 52,224 141,751,156,736 IPv4 IPv4
AS151420 RAPIDFIREY-AS-AP - Rapid-Fire-y, JP Japan 512 17,891,328 IPv4 IPv4
AS9002 RETN-AS - RETN Limited, GB United Kingdom 27,648 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS23764 CTGNet - China Telecom Global Limited, HK Hong Kong 34,816 1,966,080 IPv4 IPv4 IPv6 IPv6
AS35280 F5 - F5 Networks SARL, FR France 50,432 81,604,378,624 IPv4 IPv4 IPv6 IPv6
AS135607 INFINIVAN-AS-AP - Infinivan Incorporated, PH Philippines 34,080 8,589,934,592 IPv4 IPv4
AS17676 GIGAINFRA - SoftBank Corp., JP Japan 43,579,648 18,695,992,639,488 IPv4 IPv4 IPv6 IPv6
AS2500 WIDE-BB - WIDE Project, JP Japan 131,072 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS8966 Etisalat-AS - EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC, AE United Arab Emirates 16,384 4,295,426,048 IPv4 IPv4
AS15412 FLAG-AS - FLAG TELECOM UK LIMITED, GB United Kingdom 37,632 4,294,967,296 IPv4 IPv4
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 21,504 4,294,967,296 IPv4 IPv4
AS25152 K-ROOT-SERVER - Reseaux IP Europeens Network Coordination Centre (RIPE NCC), NL Netherlands 512 4,294,967,296 IPv6 IPv6
AS1828 UNITAS - Unitas Global LLC, US United States 228,864 47,244,640,256 IPv4 IPv4 IPv6 IPv6
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS17680 SCS - SCSK Corporation, JP Japan 6,144 0 IPv4 IPv4

Peers at this Exchange Point

Country / Region IX IPv4 IPv6 Port Speed Updated
Japan JPIX TOKYO 210.171.224.100 2001:de8:8::4693:1 10 Gbps 2019-06-03 04:00:14
Japan BBIX Tokyo - BroadBand Internet eXchange Tokyo 101.203.89.43 2001:de8:c::4693:1 10 Gbps 2022-06-28 16:56:09
Japan JPNAP Tokyo - JPNAP Tokyo 210.173.176.39 2001:7fa:7:1::4693:1 10 Gbps 2019-06-03 04:00:14

Private Peering Facilities

Country / Region Name City Website Updated
SCSK netXDC (SH1/SH2) Sanda-shi https://www.netxdc.com/eng/ 2020-12-03 09:27:02
SCSK netXDC (SI1/SI2/SI3)/NEC Inzai DC Inzai-shi https://www.netxdc.com/eng/ 2020-12-03 09:27:07
IP Address Domain NUMs Domains
203.140.1.70 1 ns3.highway.ne.jp.
203.140.1.178 1 www.hc-kohnan.co.jp
203.140.10.10 2 ns2.highway.ne.jp
203.140.10.140 1 dns1.csk.net
203.140.10.141 1 dns2.csk.net
203.140.10.149 1 www.csk.net
203.140.13.99 1 inetmng01.csk.net
203.140.21.16 1 www.pol.premium-l-s.com
203.140.21.26 1 ph-scope.jp
203.140.21.66 1 sharefile.tokyo.dtfa.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:        AS4693
as-name:        CSK
descr:          CSK-IT MANAGEMENT CORPORATION
import:
export:
country:        JP
admin-c:        TH9886JP
tech-c:         TH9886JP
last-modified:  2010-02-05T02:02:22Z
source:         JPNIC