route: 203.228.128.0/17
descr: contact nmc[at]mgate.shinbiro.com if necessary
origin: AS4670
mnt-by: MAINT-AS3786
changed: ysjeon7[at]bora.net 20000410
source: RADB
last-modified: 2023-11-13T16:09:30Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.128.0/17
descr: REACH (Customer Route)
tech-c: RRNOC1-REACH
origin: AS4670
remarks: This auto-generated route object was created
remarks: for a REACH customer route
remarks:
remarks: This route object was created because
remarks: some REACH peers filter based on these objects
remarks: and this route may be rejected
remarks: if this object is not created.
remarks:
remarks: Please contact irr[at]team.telstra.com if you have any
remarks: questions regarding this object.
notify: irr[at]team.telstra.com
mnt-by: MAINT-REACH-NOC
changed: irr[at]team.telstra.com 20050112
source: REACH
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.128.0/18
descr: SejongTelecom.co.ltd
origin: AS4670
notify: network[at]sejongtelecom.net
mnt-by: MAINT-AS4670
changed: network[at]sejongtelecom.net 20171229 #05:09:13Z
source: RADB
last-modified: 2023-11-13T15:52:43Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.128.0/17
descr: SeJong Telecom
origin: AS4760
mnt-by: MAINT-AS4766
changed: nw[at]kornet.net 20110327
source: RADB
last-modified: 2023-11-13T16:15:45Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.128.0/18
descr: SeJong Telecom
origin: AS4760
mnt-by: MAINT-AS4766
changed: nw[at]kornet.net 20110327
source: RADB
last-modified: 2023-11-13T16:15:45Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.180.0/24
descr: AS4670
origin: AS4670
mnt-by: MAINT-AS9318
changed: noc[at]skbroadband.com 20180105 #10:07:56Z
source: RADB
last-modified: 2023-11-13T15:52:44Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.180.0/24
descr: SejongTelecom.co.ltd
origin: AS38429
notify: network[at]sejongtelecom.net
mnt-by: MAINT-AS4670
changed: network[at]sejongtelecom.net 20180105 #08:47:07Z
source: RADB
last-modified: 2023-11-13T15:52:44Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

route: 203.228.180.128/25
descr: SeJong Telecom
origin: AS38429
mnt-by: MAINT-AS4766
changed: nw[at]kornet.net 20110327
source: RADB
last-modified: 2023-11-13T16:15:45Z
rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to '203.228.128.0 - 203.228.255.255'

% Abuse contact for '203.228.128.0 - 203.228.255.255' is 'irt[at]nic.or.kr'

inetnum: 203.228.128.0 - 203.228.255.255
netname: SEJONG
descr: SEJONG NETWORKS
country: KR
admin-c: IM686-AP
tech-c: IM686-AP
status: ALLOCATED PORTABLE
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2024-09-10T08:50:05Z
source: APNIC

irt: IRT-KRNIC-KR
address: 9, Jinheung-gil, Naju-si, Jeollanam-do
e-mail: irt[at]nic.or.kr
abuse-mailbox: irt[at]nic.or.kr
admin-c: IM574-AP
tech-c: IM574-AP
auth: # Filtered
remarks: irt[at]nic.or.kr was validated on 2020-04-09
mnt-by: MNT-KRNIC-AP
last-modified: 2025-09-04T01:00:01Z
source: APNIC

person: IP Manager
address: 12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
country: KR
phone: +82-2-1688-2200
e-mail: ip[at]sejongnetworks.com
nic-hdl: IM686-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2024-09-10T08:42:02Z
source: APNIC

% Information related to '203.228.128.0 - 203.228.255.255'

inetnum: 203.228.128.0 - 203.228.255.255
netname: SEJONG-KR
descr: SEJONG NETWORKS
country: KR
admin-c: IA10-KR
tech-c: IM10-KR
status: ALLOCATED PORTABLE
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
changed: hostmaster[at]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: IP Manager
address: 12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address: (Galhyeondong)
country: KR
phone: +82-2-1688-2200
e-mail: ip[at]sejongnetworks.com
nic-hdl: IA10-KR
mnt-by: MNT-KRNIC-AP
changed: hostmaster[at]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: IP Manager
address: 12 Gwacheon-daero 7-gil, Gwacheon-si, Gyeonggi-do
address: (Galhyeondong)
country: KR
phone: +82-2-1688-2200
e-mail: ip[at]sejongnetworks.com
nic-hdl: IM10-KR
mnt-by: MNT-KRNIC-AP
changed: hostmaster[at]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 1.88.34 (WHOIS-JP1)