131923 MCAT MCAT Ltd., JP
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS2519 VECTANT ARTERIA Networks Corporation, JP
AS4713 OCN NTT DOCOMO BUSINESS,Inc., JP
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 6476 AS131923 ORIGIN Originate: 22528 /17.54 Transit: 0 /0.00 MCAT MCAT Ltd., 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 % 53197 AS131923 MCAT MCAT Ltd., JP 10 0 0 10 0 0.00% Prefix AS Path Aggregation Suggestion 103.95.104.0/22 4777 4713 131923 120.50.192.0/20 4777 4713 131923 133.88.87.0/24 4777 4713 131923 133.88.88.0/22 4777 4713 131923 133.88.92.0/23 4777 4713 131923 133.88.94.0/24 4777 4713 131923 133.247.136.0/21 4777 4713 131923 133.247.240.0/20 4777 4713 131923 218.45.64.0/19 4777 4713 131923 219.100.156.0/22 4777 4713 131923
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS131923 8 More Specifics 10 Total Advertisements MCAT MCAT Ltd., JP
133.88.87.0/24 133.0.0.0/8
133.88.88.0/22 133.0.0.0/8
133.88.92.0/23 133.0.0.0/8
133.88.94.0/24 133.0.0.0/8
133.247.136.0/21 133.0.0.0/8
133.247.240.0/20 133.0.0.0/8
218.45.64.0/19 218.40.0.0/13
219.100.156.0/22 219.96.0.0/11
whois: 402332
IANA has recorded AS131923 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS131923\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS131072 - AS132095'
as-block: AS131072 - AS132095
descr: APNIC 32-bit 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: 2009-09-29T05:34:08Z
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 'AS131905 - AS131992'
as-block: AS131905 - AS131992
descr: JPNIC-4Byte-ASBLOCK-AP
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: for assignment to JPNIC members
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can also be
remarks: queried at whois.nic.ad.jp
mnt-by: MAINT-JPNIC
mnt-lower: MAINT-JPNIC
last-modified: 2016-01-27T00:24:03Z
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 'AS131923'
aut-num: AS131923
as-name: MCAT
descr: MCAT Ltd.
import: from AS4713 100 accept ANY
import: from AS4725 100 accept ANY
import: from AS17676 100 accept ANY
export: to AS4713 announce AS131923
export: to AS4725 announce AS131923
export: to AS17676 announce AS131923
country: JP
admin-c: JP00148370
tech-c: JP00148370
last-modified: 2023-04-10T19:34:21Z
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
% Information related to 'AS131072 - AS132095'
as-block: AS131072 - AS132095
descr: APNIC 32-bit ASN block
admin-c: IA55-AP
tech-c: IH123-AP
mnt-by: MNT-APJII-ID
mnt-lower: MNT-APJII-ID
last-modified: 2026-02-25T07:12:54Z
source: IDNIC
role: ID-NIC ADMINISTRATORS
address: Indonesian Network Information Center
address: ID-NIC
address: Cyber Building 11th Floor
address: Jakarta 12710
country: ID
phone: +62-21-52960634
fax-no: +62-21-52960635
e-mail: hostmaster@idnic.net
admin-c: IH288-AP
tech-c: IH288-AP
nic-hdl: IA55-AP
notify: hostmaster@idnic.net
mnt-by: MNT-APJII-ID
last-modified: 2026-02-25T04:06:45Z
source: IDNIC
role: ID-NIC HOSTMASTERS
address: Indonesian Network Information Center
address: ID-NIC
address: Cyber Building 11th Floor
address: Jakarta 12710
country: ID
phone: +62-21-52960634
fax-no: +62-21-52960635
e-mail: hostmaster@idnic.net
remarks: spam and abuse report : abuse@apjii.or.id
remarks: technical and routing : support@apjii.or.id
remarks: administrative request : admin@apjii.or.id
remarks: IDNIC hostmasters role object
admin-c: IH1-AP
tech-c: IH1-AP
nic-hdl: IH123-AP
notify: hostmaster@idnic.net
mnt-by: MNT-APJII-ID
last-modified: 2024-07-10T05:48:59Z
source: IDNIC
% This query was served by the APNIC Whois Service version 1.88.47 (WHOIS-AU4)