AS4766 Korea Telecom 🇰🇷 KR

Announcing 2,233 prefixes, seen at the RIS collectors.

IPv4 prefixes

2,168

69,950,976 (273,246 × /24)

IPv6 prefixes

4,506 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

518

transit customers observed

Customer cone

28,985

ASes reachable through it

Registry and operator data

AS number: AS4766
Name: Korea Telecom
Organisation: KT Corporation (Korea Telecom)
Country: 🇰🇷 KR
RIR: APNIC
Allocated: 1996-04-22
Network type: Cable/DSL/ISP
Traffic levels: 20-50Tbps
Scope: Global
Peering policy: Selective
IRR as-set: RADB::AS-KORNET
Website: http://www.kt.com/eng/main.jsp
PeeringDB: net/23
Exchanges: 14
Facilities: 8

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

144 valid (6.4%) 7 invalid (0.3%) 2,082 no ROA (93.2%)

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:        AS4766
as-name:        KIXS-AS-KR
descr:          Korea Telecom
country:        KR
admin-c:        AM1758-AP
tech-c:         AM1758-AP
import:         from AS9277
                action pref=100;
                accept ANY
import:         from AS9318
                action pref=10;
                accept ANY
export:         to AS9277
                announce AS4766
export:         to AS9318
                announce AS4766
default:        to AS9277
                action pref=10;
                networks ANY
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2016-11-23T01:18:18Z
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:        90 Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        AM1758-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2026-11-02T00:04:30Z
source:         APNIC

aut-num:        AS4766
as-name:        KIXS-AS-KR-KR
descr:          Korea Telecom
country:        KR
import:         from AS9277 action pref=100 accept ANY
import:         from AS9318 action pref=10 accept ANY
export:         to AS9277 announce AS4766
export:         to AS9318 announce AS4766
admin-c:        KB27-KR
tech-c:         27-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:        90 Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        KB27-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