AS4671 KTOA 🇰🇷 KR

Announcing 15 prefixes, seen at the RIS collectors.

IPv4 prefixes

552 (2 × /24)

IPv6 prefixes

3 × /48

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS4671
Name: KTOA
Organisation: KTOA
Country: 🇰🇷 KR
RIR: APNIC
Allocated: 1995-05-30

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 15 no ROA (100.0%)

Whois

Fetched from whois.apnic.net

as-block:       AS4608 - AS4865
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:  2019-05-20T03:52:26Z
source:         APNIC

role:           APNIC Hostmaster
address:        PO Box 3646
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:  2026-08-26T00:40:00Z
source:         APNIC

aut-num:        AS4671
as-name:        KTOA-AS-KR
descr:          KTOA
country:        KR
admin-c:        AM1097-AP
tech-c:         AM1097-AP
import:         from AS3786
                action pref=0;
                accept ANY
import:         from AS4766
                action pref=0;
                accept ANY
import:         from AS9318
                action pref=0;
                accept ANY
export:         to AS3786
                announce AS4671
export:         to AS4766
                announce AS4671
export:         to AS9318
                announce AS4671
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2020-09-11T01:06:04Z
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:  2026-10-07T08:37:09Z
source:         APNIC

person:         AS Manager
address:        Seoul Gangnam-gu Bongeunsa-ro 435
country:        KR
phone:          +82-2-2015-9074
e-mail:         allen@ktoa.or.kr
nic-hdl:        AM1097-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-11-24T07:24:02Z
source:         APNIC

aut-num:        AS4671
as-name:        KTOA-AS-KR-KR
descr:          KTOA
country:        KR
import:         from AS4766 action pref=0 accept ANY
import:         from AS3786 action pref=0 accept ANY
import:         from AS9318 action pref=0 accept ANY
export:         to AS4766 announce AS4671
export:         to AS3786 announce AS4671
export:         to AS9318 announce AS4671
admin-c:        GY5031-KR
tech-c:         GY5031-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 Gangnam-gu Bongeunsa-ro 435
address:        KTOA building Samsung-dong
country:        KR
phone:          +82-2-2015-9074
e-mail:         allen@ktoa.or.kr
nic-hdl:        GY5031-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