37891 JTIS JR TOKAI Information Systems Company, JP
Adjacency: 3 Upstream: 3 Downstream: 0
Upstream Adjacent AS list
AS2516 KDDI KDDI CORPORATION, JP
AS2497 IIJ Internet Initiative Japan Inc., JP
AS4713 OCN NTT DOCOMO BUSINESS,Inc., JP
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 18164 AS37891 ORIGIN Originate: 3840 /20.09 Transit: 0 /0.00 JTIS JR TOKAI Information Systems Company, JP
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 16234 AS37891 JTIS JR TOKAI Information Systems Company, JP 8 4 2 6 2 25.00% Prefix AS Path Aggregation Suggestion 58.147.160.0/21 4777 4713 37891 58.147.162.0/23 4777 2497 37891 + Announce - aggregate of 58.147.162.0/24 (4777 2497 37891) and 58.147.163.0/24 (4777 2497 37891) 58.147.162.0/24 4777 2497 37891 - Withdrawn - aggregated with 58.147.163.0/24 (4777 2497 37891) 58.147.163.0/24 4777 2497 37891 - Withdrawn - aggregated with 58.147.162.0/24 (4777 2497 37891) 58.147.165.0/24 4777 2497 37891 58.147.166.0/23 4777 2497 37891 + Announce - aggregate of 58.147.166.0/24 (4777 2497 37891) and 58.147.167.0/24 (4777 2497 37891) 58.147.166.0/24 4777 2497 37891 - Withdrawn - aggregated with 58.147.167.0/24 (4777 2497 37891) 58.147.167.0/24 4777 2497 37891 - Withdrawn - aggregated with 58.147.166.0/24 (4777 2497 37891) 192.218.65.0/24 4777 4713 37891 192.218.66.0/24 4777 4713 37891
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS37891 7 More Specifics 8 Total Advertisements JTIS JR TOKAI Information Systems Company, JP
58.147.162.0/24 58.147.160.0/21
58.147.163.0/24 58.147.160.0/21
58.147.165.0/24 58.147.160.0/21
58.147.166.0/24 58.147.160.0/21
58.147.167.0/24 58.147.160.0/21
192.218.65.0/24 192.218.0.0/16
192.218.66.0/24 192.218.0.0/16
whois: 402332
IANA has recorded AS37891 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS37891\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS37888 - AS37927'
as-block: AS37888 - AS37927
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
% Information related to 'AS37888 - AS38911'
as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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
% Information related to 'AS37891'
aut-num: AS37891
as-name: JTIS
descr: JR TOKAI Information Systems Company
import:
export:
country: JP
admin-c: RO1261JP
tech-c: RO1261JP
last-modified: 2006-06-20T19:15:43Z
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 1.88.36-SNAPSHOT (WHOIS-AU5)