23581 HYNIX-AS-KR Hynix Semiconductor Inc., KR
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS4766 KIXS-AS-KR Korea Telecom, KR
AS9318 SKB-AS SK Broadband Co Ltd, KR
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 18252 AS23581 ORIGIN Originate: 3840 /20.09 Transit: 0 /0.00 HYNIX-AS-KR Hynix Semiconductor Inc., 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 % 8618 AS23581 HYNIX-AS-KR Hynix Semiconductor Inc., KR 15 8 3 10 5 33.33% Prefix AS Path Aggregation Suggestion 166.125.0.0/24 4777 2497 4766 23581 166.125.239.0/24 4777 2497 4766 23581 166.125.240.0/22 4777 2497 4766 23581 + Announce - aggregate of 166.125.240.0/23 (4777 2497 4766 23581) and 166.125.242.0/23 (4777 2497 4766 23581) 166.125.240.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.241.0/24 (4777 2497 4766 23581) 166.125.241.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.240.0/24 (4777 2497 4766 23581) 166.125.242.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.243.0/24 (4777 2497 4766 23581) 166.125.243.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.242.0/24 (4777 2497 4766 23581) 166.125.244.0/23 4777 2497 9318 23581 + Announce - aggregate of 166.125.244.0/24 (4777 2497 9318 23581) and 166.125.245.0/24 (4777 2497 9318 23581) 166.125.244.0/24 4777 2497 9318 23581 - Withdrawn - aggregated with 166.125.245.0/24 (4777 2497 9318 23581) 166.125.245.0/24 4777 2497 9318 23581 - Withdrawn - aggregated with 166.125.244.0/24 (4777 2497 9318 23581) 166.125.246.0/24 4777 2497 4766 23581 166.125.248.0/24 4777 2497 4766 23581 166.125.250.0/23 4777 2497 4766 23581 + Announce - aggregate of 166.125.250.0/24 (4777 2497 4766 23581) and 166.125.251.0/24 (4777 2497 4766 23581) 166.125.250.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.251.0/24 (4777 2497 4766 23581) 166.125.251.0/24 4777 2497 4766 23581 - Withdrawn - aggregated with 166.125.250.0/24 (4777 2497 4766 23581) 166.125.252.0/24 4777 2497 4766 23581 166.125.253.0/24 4777 2497 9318 23581 166.125.254.0/24 4777 2497 4766 23581
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS23581 15 More Specifics 15 Total Advertisements HYNIX-AS-KR Hynix Semiconductor Inc., KR
166.125.0.0/24 166.125.0.0/16
166.125.239.0/24 166.125.0.0/16
166.125.240.0/24 166.125.0.0/16
166.125.241.0/24 166.125.0.0/16
166.125.242.0/24 166.125.0.0/16
166.125.243.0/24 166.125.0.0/16
166.125.244.0/24 166.125.0.0/16
166.125.245.0/24 166.125.0.0/16
166.125.246.0/24 166.125.0.0/16
166.125.248.0/24 166.125.0.0/16
166.125.250.0/24 166.125.0.0/16
166.125.251.0/24 166.125.0.0/16
166.125.252.0/24 166.125.0.0/16
166.125.253.0/24 166.125.0.0/16
166.125.254.0/24 166.125.0.0/16
whois: 402332
IANA has recorded AS23581 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS23581\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS23552 - AS23601'
as-block: AS23552 - AS23601
descr: KRNIC-ASBLOCK-AP
descr: KRNIC
descr: Korea Network Information Center
country: KR
admin-c: HM127-AP
tech-c: HM127-AP
remarks: Block of 50 AS numbers from AS23552to AS23601
remarks: for assignment to KRNIC members
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can also be
remarks: queried at whois.nic.or.kr
mnt-by: APNIC-HM
mnt-lower: MNT-KRNIC-AP
last-modified: 2008-09-04T06:40:26Z
source: APNIC
person: Host Master
address: Jeollanam-do Naju-si Jinheung-gil
country: KR
phone: +82-2-405-5118
e-mail: hostmaster@nic.or.kr
nic-hdl: HM127-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2019-05-22T01:20:31Z
source: APNIC
% Information related to 'AS23552 - AS24575'
as-block: AS23552 - AS24575
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
remarks: AS23889 has been transfered to AfriNIC
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 'AS23581'
% Abuse contact for 'AS23581' is 'irt@nic.or.kr'
aut-num: AS23581
as-name: HYNIX-AS-KR
descr: Hynix Semiconductor Inc.
country: KR
admin-c: AM1848-AP
tech-c: AM1848-AP
import: from AS4670
action pref=150;
accept ANY
import: from AS4766
action pref=100;
accept ANY
export: to AS4670
announce AS23581
export: to AS4677
announce AS23581
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2019-05-09T01:18:02Z
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: Gyeonggi-do Icheon-si Gyeongchung-daero 2091
country: KR
phone: +82-31-5185-4114
e-mail: eunha2.lee@sk.com
nic-hdl: AM1848-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2026-02-20T07:14:03Z
source: APNIC
% Information related to 'AS23581'
aut-num: AS23581
as-name: HYNIX-AS-KR-KR
descr: Hynix Semiconductor Inc.
country: KR
import: from AS4670 action pref=150 accept ANY
import: from AS4766 action pref=100 accept ANY
export: to AS4670 announce AS23581
export: to AS4677 announce AS23581
admin-c: SC536-KR
tech-c: SC536-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
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
person: AS Manager
address: Gyeonggi-do Icheon-si Gyeongchung-daero 2091
address: 2091
country: KR
phone: +82-31-5185-4114
e-mail: eunha2.lee@sk.com
nic-hdl: SC536-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 1.88.36-SNAPSHOT (WHOIS-AU5)