18031 SANGMYUNG-AS-KR Sangmyung University, KR
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS4766 KIXS-AS-KR Korea Telecom, KR
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 10761 AS18031 ORIGIN Originate: 9216 /18.83 Transit: 0 /0.00 SANGMYUNG-AS-KR Sangmyung 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 % 4999 AS18031 SANGMYUNG-AS-KR Sangmyung University, KR 19 12 2 9 10 52.63% Prefix AS Path Aggregation Suggestion 61.72.126.0/23 37100 4766 18031 61.72.128.0/23 37100 4766 18031 61.73.57.0/24 37100 4766 18031 117.16.40.0/21 37100 4766 18031 117.16.48.0/24 37100 4766 18031 117.16.108.0/22 37100 4766 18031 + Announce - aggregate of 117.16.108.0/23 (37100 4766 18031) and 117.16.110.0/23 (37100 4766 18031) 117.16.108.0/24 37100 4766 18031 - Withdrawn - aggregated with 117.16.109.0/24 (37100 4766 18031) 117.16.109.0/24 37100 4766 18031 - Withdrawn - aggregated with 117.16.108.0/24 (37100 4766 18031) 117.16.110.0/24 37100 4766 18031 - Withdrawn - aggregated with 117.16.111.0/24 (37100 4766 18031) 117.16.111.0/24 37100 4766 18031 - Withdrawn - aggregated with 117.16.110.0/24 (37100 4766 18031) 117.16.122.0/23 37100 4766 18031 203.237.168.0/21 37100 4766 18031 + Announce - aggregate of 203.237.168.0/22 (37100 4766 18031) and 203.237.172.0/22 (37100 4766 18031) 203.237.168.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.169.0/24 (37100 4766 18031) 203.237.169.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.168.0/24 (37100 4766 18031) 203.237.170.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.171.0/24 (37100 4766 18031) 203.237.171.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.170.0/24 (37100 4766 18031) 203.237.172.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.173.0/24 (37100 4766 18031) 203.237.173.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.172.0/24 (37100 4766 18031) 203.237.174.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.175.0/24 (37100 4766 18031) 203.237.175.0/24 37100 4766 18031 - Withdrawn - aggregated with 203.237.174.0/24 (37100 4766 18031) 220.149.24.0/21 37100 4766 18031
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS18031 18 More Specifics 18 Total Advertisements SANGMYUNG-AS-KR Sangmyung University, KR
61.72.126.0/23 61.72.0.0/14
61.72.128.0/23 61.72.0.0/14
117.16.40.0/21 117.16.0.0/15
117.16.48.0/24 117.16.0.0/15
117.16.108.0/24 117.16.0.0/15
117.16.109.0/24 117.16.0.0/15
117.16.110.0/24 117.16.0.0/15
117.16.111.0/24 117.16.0.0/15
117.16.122.0/23 117.16.0.0/15
203.237.168.0/24 203.237.128.0/17
203.237.169.0/24 203.237.128.0/17
203.237.170.0/24 203.237.128.0/17
203.237.171.0/24 203.237.128.0/17
203.237.172.0/24 203.237.128.0/17
203.237.173.0/24 203.237.128.0/17
203.237.174.0/24 203.237.128.0/17
203.237.175.0/24 203.237.128.0/17
220.149.24.0/21 220.149.0.0/16
whois: 402590
IANA has recorded AS18031 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS18031\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 'AS18031'
% Abuse contact for 'AS18031' is 'irt@nic.or.kr'
aut-num: AS18031
as-name: SANGMYUNG-AS-KR
descr: Sangmyung University
country: KR
admin-c: AM1337-AP
tech-c: AM1337-AP
import: from AS3786
action pref=100;
accept ANY
import: from AS4766
action pref=100;
accept ANY
export: to AS3786
announce AS18031
export: to AS4766
announce AS18031
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2022-08-25T01:18:01Z
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: Seoul Jongno-gu Hongjimun 2-gil 20
country: KR
phone: +82-2-2287-5247
e-mail: kjy1009@smu.ac.kr
nic-hdl: AM1337-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2025-03-18T05:16:02Z
source: APNIC
% Information related to 'AS18031'
aut-num: AS18031
as-name: SANGMYUNG-AS-KR-KR
descr: Sangmyung University
country: KR
import: from AS3786 action pref=100 accept ANY
import: from AS4766 action pref=100 accept ANY
export: to AS3786 announce NEW
export: to AS4766 announce NEW
admin-c: KL437-KR
tech-c: KL437-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: Seoul Jongno-gu Hongjimun 2-gil 20
address: enjinieoling BD 101
country: KR
phone: +82-2-2287-5247
e-mail: kjy1009@smu.ac.kr
nic-hdl: KL437-KR
mnt-by: MNT-KRNIC-AP
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)