IP range details

163.220.252.0/22

AS37917 · University of Tsukuba

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Summary

Country	Japan
Domain	tsukuba.ac.jp
ASN	AS37917
Registry	jpnic
Hosted IPs	1,024
ID	UTINS-CIDR-BLK-JP

WHOIS Details

inetnum:        163.220.252.0 - 163.220.255.255
netname:        UTINS
descr:          University of Tsukuba
country:        JP
admin-c:        KK17-AP
tech-c:         KK17-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
changed:        hm-changed@apnic.net 20150611
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
mnt-by:         MAINT-JPNIC
changed:        abuse@apnic.net 20101108
changed:        hm-changed@apnic.net 20101111
changed:        ip-apnic@nic.ad.jp 20140702
source:         APNIC

person:         Kazuki Katagishi
address:        University of Tsukuba 1-1-1 Tennoudai, Tsukuba305-8577
country:        JP
phone:          +81-298-53-6221
fax-no:         +81-298-53-2983
e-mail:         katagisi@cc.tsukuba.ac.jp
nic-hdl:        KK17-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  KK631-ARIN
remarks:        is-role:     N
remarks:        last-name:   Katagishi
remarks:        first-name:  Kazuki
remarks:        street:      University of Tsukuba 1-1-1 Tennoudai, Tsukuba305-8577
remarks:        country:     JP
remarks:        mailbox:     katagisi@cc.tsukuba.ac.jp
remarks:        fax-phone:   +81-298-53-2983
remarks:        bus-phone:   +81-298-53-6221
remarks:        reg-date:    2001-05-29
remarks:        changed:     hostmaster@arin.poc 20010529
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         katagisi@cc.tsukuba.ac.jp
mnt-by:         MNT-ERX-TSUKUBAUNI-NON-JP
changed:        hostmaster@arin.poc 20010529
changed:        hm-changed@apnic.net 20031020
source:         APNIC

inetnum:        163.220.252.0 - 163.220.255.255
netname:        UTINS-CIDR-BLK-JP
descr:          University of Tsukuba
country:        JP
admin-c:        AS3586JP
tech-c:         JP00083371
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)
changed:        apnic-ftp@nic.ad.jp 20150602
changed:        apnic-ftp@nic.ad.jp 20150710
source:         JPNIC

Hosted domains

There are no domains currently hosted on this ASN.

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What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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