ASN AS3559 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS3559?

AS3559 is listed under Korea Telecom.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS3559 Korea Telecom | IPGeolocation.io

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Korea Telecom kt.com

KR 5 Routes

AS Data

AS3559

AS3559 – Korea Telecom

AS Number	3559
AS Name	KORNET-AS-KR
Organization	Korea Telecom
Country	KR
Website	kt.com
Number of IPv4 Routes	0
Number of IPv6 Routes	5
ASN type	ISP
Registry	KRNIC
Date Allocated	2002-08-01

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Use ASN data for AS3559 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2001:e60:4000::/36	AS3559	Korea Telecom	Korea Telecom	~5×10²⁷
2001:e60:e990::/48	AS3559	Korea Telecom	Korea Telecom	~1×10²⁴
2001:e60::/34	AS3559	Korea Telecom	Korea Telecom	~20×10²⁷
2001:e60:8000::/34	AS3559	Korea Telecom	Korea Telecom	~20×10²⁷
2001:e60:c000::/35	AS3559	Korea Telecom	Korea Telecom	~1×10³⁰

Raw Whois Response

query : AS3559


# KOREAN(UTF8)

조회하신 AS번호는 한국인터넷진흥원으로부터 아래의 AS번호 사용기관에게 할당되었으며, 할당 정보는 다음과 같습니다.

AS번호             : AS3559
AS이름             : KORNET-AS-KR

[ AS번호 기관 정보 ]
기관명             : 주식회사 케이티
주소               : 경기도 성남시 분당구 불정로 90 (정자동, KT본사)
우편번호           : 13606

이름               : AS번호 담당자
전화번호           : +82-2-500-6630
전자우편           : kornet_ip@kt.com


# ENGLISH

KRNIC is not an ISP but a National Internet Registry similar to APNIC.

AS Number          : AS3559
AS Name            : KORNET-AS-KR

[ Organization Information ]
Name               : Korea Telecom
Address            : KT Head Office, Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
Zip Code           : 13606

Name               : AS Manager
Phone              : +82-2-500-6630
E-Mail             : kornet_ip@kt.com


- KISA/KRNIC WHOIS Service -


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

% Information related to 'AS3559'

% Abuse contact for 'AS3559' is 'irt@nic.or.kr'

aut-num:        AS3559
as-name:        KORNET-AS-KR
descr:          Korea Telecom
country:        KR
admin-c:        AM1657-AP
tech-c:         AM1657-AP
import:         from AS9277
                action pref=100;
                accept ANY
import:         from AS9318
                action pref=10;
                accept ANY
export:         to AS9277
                announce AS3559
export:         to AS9277
                announce AS3559
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2022-06-02T02:40:02Z
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:  2026-08-12T06:19:00Z
source:         APNIC

person:         AS Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        AM1657-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2016-10-31T01:09:01Z
source:         APNIC

% Information related to 'AS3559'

aut-num:        AS3559
as-name:        KORNET-AS-KR-KR
descr:          Korea Telecom
country:        KR
import:         from AS9318 action pref=10 accept ANY
import:         from AS9277 action pref=100 accept ANY
export:         to AS9277 announce AS3559
export:         to AS9277 announce AS3559
admin-c:        KB6-KR
tech-c:         6-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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        6-KR
mnt-by:         MNT-KRNIC-AP
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 Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        KB6-KR
mnt-by:         MNT-KRNIC-AP
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

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "aut_nums" : [ {
    "aut_num" : "AS3559",
    "as_name" : "KORNET-AS-KR",
    "description" : [ "Korea Telecom" ],
    "country" : "KR",
    "import" : [ "from AS9277", "from AS9318" ],
    "export" : [ "to AS9277", "to AS9277" ],
    "admin_contacts" : [ "AM1657-AP" ],
    "tech_contacts" : [ "AM1657-AP" ],
    "mnt_irt" : [ "IRT-KRNIC-KR" ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2022-06-02",
    "source" : "APNIC"
  }, {
    "aut_num" : "AS3559",
    "as_name" : "KORNET-AS-KR-KR",
    "description" : [ "Korea Telecom" ],
    "country" : "KR",
    "import" : [ "from AS9318 action pref=10 accept ANY", "from AS9277 action pref=100 accept ANY" ],
    "export" : [ "to AS9277 announce AS3559", "to AS9277 announce AS3559" ],
    "admin_contacts" : [ "KB6-KR" ],
    "tech_contacts" : [ "6-KR" ],
    "remarks" : [ "This information has been partially mirrored by APNIC from", "KRNIC. To obtain more specific information, please use the", "KRNIC whois server at whois.kisa.or.kr." ],
    "mnt_irt" : [ "IRT-KRNIC-KR" ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "source" : "KRNIC"
  } ],
  "irt" : {
    "handle" : "IRT-KRNIC-KR",
    "address" : [ "9, Jinheung-gil, Naju-si, Jeollanam-do" ],
    "street" : "Jinheung-gil",
    "city" : "Naju-si",
    "state" : "JEOLLANAM-DO",
    "email" : [ "irt@nic.or.kr" ],
    "abuse_mailbox" : [ "irt@nic.or.kr" ],
    "admin_contacts" : [ "IM574-AP" ],
    "tech_contacts" : [ "IM574-AP" ],
    "remarks" : [ "irt@nic.or.kr was validated on 2020-04-09" ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2026-08-12",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "AM1657-AP",
    "name" : "AS Manager",
    "address" : [ "Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90" ],
    "street" : "Gyeonggi-do Bundang-gu Seongnam-si Buljeong-ro",
    "country" : "KR",
    "email" : [ "kornet_ip@kt.com" ],
    "phone" : [ "+82-2-500-6630" ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2016-10-31",
    "source" : "APNIC"
  }, {
    "handle" : "KB6-KR",
    "name" : "AS Manager",
    "address" : [ "Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90", "KT Head Office" ],
    "street" : "Gyeonggi-do Bundang-gu Seongnam-si Buljeong-ro",
    "country" : "KR",
    "email" : [ "kornet_ip@kt.com" ],
    "phone" : [ "+82-2-500-6630" ],
    "remarks" : [ "This information has been partially mirrored by APNIC from", "KRNIC. To obtain more specific information, please use the", "KRNIC whois server at whois.kisa.or.kr." ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2024-09-12",
    "source" : "KRNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "AM1657-AP",
    "name" : "AS Manager",
    "address" : [ "Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90" ],
    "street" : "Gyeonggi-do Bundang-gu Seongnam-si Buljeong-ro",
    "country" : "KR",
    "email" : [ "kornet_ip@kt.com" ],
    "phone" : [ "+82-2-500-6630" ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2016-10-31",
    "source" : "APNIC"
  }, {
    "handle" : "6-KR",
    "name" : "AS Manager",
    "address" : [ "Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90", "KT Head Office" ],
    "street" : "Gyeonggi-do Bundang-gu Seongnam-si Buljeong-ro",
    "country" : "KR",
    "email" : [ "kornet_ip@kt.com" ],
    "phone" : [ "+82-2-500-6630" ],
    "remarks" : [ "This information has been partially mirrored by APNIC from", "KRNIC. To obtain more specific information, please use the", "KRNIC whois server at whois.kisa.or.kr." ],
    "mnt_by" : [ "MNT-KRNIC-AP" ],
    "date_updated" : "2024-09-12",
    "source" : "KRNIC"
  } ]
}

Peers

AS Number	Description	Country
AS9277	SK Broadband Co Ltd	KR
AS9318	SK Broadband Co Ltd	KR
AS4766	Korea Telecom	KR

Upstreams

AS Number	Description	Country
AS4766	Korea Telecom	KR

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ASN Summary

AS3559 – Korea Telecom

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