18023 KMU-AS-KR-KR - Korea Maritime and Ocean University, KR
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS3786 LGDACOM-KR - LG DACOM Corporation, KR
AS4766 KIXS-AS-KR-KR - Korea Telecom, KR
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 6494 AS18023 ORIGIN Originate: 21760 /17.59 Transit: 0 /0.00 KMU-AS-KR-KR - Korea Maritime and Ocean University, KR
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 % 3209 AS18023 KMU-AS-KR-KR - Korea Maritime and Ocean Unive 41 29 13 25 16 39.02% Prefix AS Path Aggregation Suggestion 61.82.252.0/22 4608 7575 3786 18023 61.82.252.0/22 4777 2497 4766 18023 + Announce - aggregate of 61.82.252.0/23 (4777 2497 4766 18023) and 61.82.254.0/23 (4777 2497 4766 18023) 61.82.252.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 61.82.254.0/23 (4777 2497 4766 18023) 61.82.254.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 61.82.252.0/23 (4777 2497 4766 18023) 121.144.249.0/24 4608 7575 3786 18023 121.144.250.0/24 4608 7575 3786 18023 203.230.240.0/23 4777 2497 4766 18023 203.230.240.0/21 4608 7575 3786 18023 + Announce - aggregate of 203.230.240.0/22 (4608 7575 3786 18023) and 203.230.244.0/22 (4608 7575 3786 18023) 203.230.240.0/24 4608 7575 3786 18023 - Withdrawn - aggregated with 203.230.241.0/24 (4608 7575 3786 18023) 203.230.241.0/24 4608 7575 3786 18023 - Withdrawn - aggregated with 203.230.240.0/24 (4608 7575 3786 18023) 203.230.242.0/23 4608 7575 3786 18023 - Withdrawn - aggregated with 203.230.240.0/23 (4608 7575 3786 18023) 203.230.242.0/23 4777 2497 4766 18023 + Announce - aggregate of 203.230.242.0/24 (4777 2497 4766 18023) and 203.230.243.0/24 (4777 2497 4766 18023) 203.230.242.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.243.0/24 (4777 2497 4766 18023) 203.230.243.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.242.0/24 (4777 2497 4766 18023) 203.230.244.0/22 4608 7575 3786 18023 - Withdrawn - aggregated with 203.230.240.0/22 (4608 7575 3786 18023) 203.230.244.0/22 4777 2497 4766 18023 + Announce - aggregate of 203.230.244.0/23 (4777 2497 4766 18023) and 203.230.246.0/23 (4777 2497 4766 18023) 203.230.244.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.246.0/23 (4777 2497 4766 18023) 203.230.246.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.244.0/23 (4777 2497 4766 18023) 203.230.248.0/22 4608 7575 3786 18023 203.230.248.0/22 4777 2497 4766 18023 + Announce - aggregate of 203.230.248.0/23 (4777 2497 4766 18023) and 203.230.250.0/23 (4777 2497 4766 18023) 203.230.248.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.250.0/23 (4777 2497 4766 18023) 203.230.250.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.248.0/23 (4777 2497 4766 18023) 203.230.252.0/23 4608 7575 3786 18023 203.230.252.0/23 4777 2497 4766 18023 + Announce - aggregate of 203.230.252.0/24 (4777 2497 4766 18023) and 203.230.253.0/24 (4777 2497 4766 18023) 203.230.252.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.253.0/24 (4777 2497 4766 18023) 203.230.253.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 203.230.252.0/24 (4777 2497 4766 18023) 203.234.92.0/22 4608 7575 3786 18023 203.234.92.0/22 4777 2497 4766 18023 + Announce - aggregate of 203.234.92.0/23 (4777 2497 4766 18023) and 203.234.94.0/23 (4777 2497 4766 18023) 203.234.92.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.234.94.0/23 (4777 2497 4766 18023) 203.234.94.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 203.234.92.0/23 (4777 2497 4766 18023) 203.255.212.0/22 4777 2497 4766 18023 203.255.212.0/22 4608 7575 3786 18023 + Announce - aggregate of 203.255.212.0/23 (4608 7575 3786 18023) and 203.255.214.0/23 (4608 7575 3786 18023) 203.255.212.0/23 4608 7575 3786 18023 - Withdrawn - aggregated with 203.255.214.0/23 (4608 7575 3786 18023) 203.255.214.0/23 4608 7575 3786 18023 - Withdrawn - aggregated with 203.255.212.0/23 (4608 7575 3786 18023) 211.197.72.0/23 4608 7575 3786 18023 + Announce - aggregate of 211.197.72.0/24 (4608 7575 3786 18023) and 211.197.73.0/24 (4608 7575 3786 18023) 211.197.72.0/24 4608 7575 3786 18023 - Withdrawn - aggregated with 211.197.73.0/24 (4608 7575 3786 18023) 211.197.73.0/24 4608 7575 3786 18023 - Withdrawn - aggregated with 211.197.72.0/24 (4608 7575 3786 18023) 211.220.46.0/24 4608 7575 3786 18023 218.154.144.0/22 4608 7575 3786 18023 218.154.144.0/22 4777 2497 4766 18023 + Announce - aggregate of 218.154.144.0/23 (4777 2497 4766 18023) and 218.154.146.0/23 (4777 2497 4766 18023) 218.154.144.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 218.154.146.0/23 (4777 2497 4766 18023) 218.154.146.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 218.154.144.0/23 (4777 2497 4766 18023) 220.69.252.0/23 4608 7575 3786 18023 220.69.252.0/23 4777 2497 4766 18023 + Announce - aggregate of 220.69.252.0/24 (4777 2497 4766 18023) and 220.69.253.0/24 (4777 2497 4766 18023) 220.69.252.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 220.69.253.0/24 (4777 2497 4766 18023) 220.69.253.0/24 4777 2497 4766 18023 - Withdrawn - aggregated with 220.69.252.0/24 (4777 2497 4766 18023) 220.149.72.0/22 4608 7575 3786 18023 220.149.72.0/21 4777 2497 4766 18023 + Announce - aggregate of 220.149.72.0/22 (4777 2497 4766 18023) and 220.149.76.0/22 (4777 2497 4766 18023) 220.149.72.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 220.149.74.0/23 (4777 2497 4766 18023) 220.149.74.0/23 4777 2497 4766 18023 - Withdrawn - aggregated with 220.149.72.0/23 (4777 2497 4766 18023) 220.149.76.0/22 4777 2497 4766 18023 - Withdrawn - aggregated with 220.149.72.0/22 (4777 2497 4766 18023) 220.149.76.0/22 4608 7575 3786 18023 + Announce - aggregate of 220.149.76.0/23 (4608 7575 3786 18023) and 220.149.78.0/23 (4608 7575 3786 18023) 220.149.76.0/23 4608 7575 3786 18023 - Withdrawn - aggregated with 220.149.78.0/23 (4608 7575 3786 18023) 220.149.78.0/23 4608 7575 3786 18023 - Withdrawn - aggregated with 220.149.76.0/23 (4608 7575 3786 18023)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS18023 40 More Specifics 41 Total Advertisements KMU-AS-KR-KR - Korea Maritime and Ocean University, KR
61.82.252.0/22 61.80.0.0/14
61.82.252.0/23 61.80.0.0/14
61.82.254.0/23 61.80.0.0/14
121.144.249.0/24 121.128.0.0/11
121.144.250.0/24 121.128.0.0/11
203.230.240.0/23 203.230.192.0/18
203.230.240.0/24 203.230.192.0/18
203.230.241.0/24 203.230.192.0/18
203.230.242.0/23 203.230.192.0/18
203.230.242.0/24 203.230.192.0/18
203.230.243.0/24 203.230.192.0/18
203.230.244.0/22 203.230.192.0/18
203.230.244.0/23 203.230.192.0/18
203.230.246.0/23 203.230.192.0/18
203.230.248.0/22 203.230.192.0/18
203.230.248.0/23 203.230.192.0/18
203.230.250.0/23 203.230.192.0/18
203.230.252.0/23 203.230.192.0/18
203.230.252.0/24 203.230.192.0/18
203.230.253.0/24 203.230.192.0/18
203.234.92.0/22 203.234.64.0/19
203.234.92.0/23 203.234.64.0/19
203.234.94.0/23 203.234.64.0/19
203.255.212.0/23 203.255.212.0/22
203.255.214.0/23 203.255.212.0/22
211.197.72.0/24 211.192.0.0/13
211.197.73.0/24 211.192.0.0/13
211.220.46.0/24 211.220.0.0/14
218.154.144.0/22 218.144.0.0/12
218.154.144.0/23 218.144.0.0/12
218.154.146.0/23 218.144.0.0/12
220.69.252.0/23 220.68.0.0/15
220.69.252.0/24 220.68.0.0/15
220.69.253.0/24 220.68.0.0/15
220.149.72.0/22 220.149.0.0/16
220.149.72.0/23 220.149.0.0/16
220.149.74.0/23 220.149.0.0/16
220.149.76.0/22 220.149.0.0/16
220.149.76.0/23 220.149.0.0/16
220.149.78.0/23 220.149.0.0/16
whois: 402591
IANA has recorded AS18023 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18023\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17653 - AS18431'
as-block: AS17653 - AS18431
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: 2019-01-08T23:19:07Z
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 'AS18023'
% Abuse contact for 'AS18023' is 'irt@nic.or.kr'
aut-num: AS18023
as-name: KMU-AS-KR
descr: Korea Maritime and Ocean University
country: KR
admin-c: AM1202-AP
tech-c: AM1202-AP
import: from AS3786
action pref=1;
accept ANY
import: from AS4766
action pref=2;
accept ANY
export: to AS3786
announce AS18023
export: to AS4766
announce AS18023
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2019-11-21T08:50:06Z
source: APNIC
irt: IRT-KRNIC-KR
address: 9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail: irt@nic.or.kr
abuse-mailbox: irt@nic.or.kr
admin-c: IM574-AP
tech-c: IM574-AP
auth: # Filtered
remarks: irt@nic.or.kr was validated on 2020-04-09
mnt-by: MNT-KRNIC-AP
last-modified: 2025-09-04T01:00:01Z
source: APNIC
person: AS Manager
address: Busan Yeongdo-gu Taejong-ro 727
country: KR
phone: +82-51-410-5162
e-mail: int@kmou.ac.kr
nic-hdl: AM1202-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2019-11-21T08:50:06Z
source: APNIC
% Information related to 'AS18023'
aut-num: AS18023
as-name: KMU-AS-KR-KR
descr: Korea Maritime and Ocean University
country: KR
import: from 3786 action pref=1 accept ANY
import: from 4766 action pref=2 accept ANY
export: to 3786 announce NEW
export: to 4766 announce NEW
admin-c: HD432-KR
tech-c: HD432-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
remarks: This information has been partially mirrored by APNIC from
remarks: KRNIC. To obtain more specific information, please use the
remarks: KRNIC whois server at whois.kisa.or.kr.
source: KRNIC
person: AS Manager
address: Busan Yeongdo-gu Taejong-ro 727
address: 727 Busan Korea
country: KR
phone: +82-51-410-5162
e-mail: int@kmou.ac.kr
nic-hdl: HD432-KR
mnt-by: MNT-KRNIC-AP
changed: hostmaster@nic.or.kr 20240912
remarks: This information has been partially mirrored by APNIC from
remarks: KRNIC. To obtain more specific information, please use the
remarks: KRNIC whois server at whois.kisa.or.kr.
source: KRNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)