ASN Lookup Tool

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
[ is restricted to network administration purposes. For further information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,        ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

Autonomous System Information:
a. [AS Number]                  2501
b. [AS Name]                    UTnet
g. [Organization]               The University of Tokyo
m. [Administrative Contact]     MN010JP
n. [Technical Contact]          YS7474JP
n. [Technical Contact]          MN010JP
q. [Abuse]                      
o. [IMPORT]                     from AS2500 100 accept ANY
o. [IMPORT]                     from AS2907 100 accept ANY
p. [EXPORT]                     to AS2500 announce AS2501
p. [EXPORT]                     to AS2907 announce AS2501
[Assigned Date]                 
[Last Update]                   2014/03/18 15:59:42(JST)

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS2497 - AS2528'

as-block:       AS2497 - AS2528
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:  2017-06-12T03:54:29Z
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

% Information related to 'AS2501'

aut-num:        AS2501
as-name:        UTnet
descr:          The University of Tokyo
import:         from AS2500 100 accept ANY
import:         from AS2907 100 accept ANY
export:         to AS2500 announce AS2501
export:         to AS2907 announce AS2501
country:        JP
admin-c:        MN010JP
tech-c:         MN010JP
tech-c:         YS7474JP
last-modified:  2014-03-19T00:59:42Z
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

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)