Autonomous system
AS4766 KIXS-AS-KR Korea Telecom
Mobile DROP-listed space ARIN Cable/DSL/ISP
Summary
Korea Telecom (KT)
isp eyeball backbone
KT (KIXS-AS-KR Korea Telecom) — South Korea's incumbent telecom and largest fixed-broadband provider.
What it's used for
- Fixed broadband, mobile, and backbone connectivity for a large share of South Korean internet users.
Notable
- A major "eyeball" network in one of the world's most fibre-dense, high-speed broadband markets.
- Also carries substantial international connectivity for Korea.
Interesting
- KT's network helped make South Korea an early leader in nationwide high-speed broadband and, later, gigabit and 5G rollout.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 14 exchanges in 7 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.192.170 |
| LINX LON1 | London, United Kingdom | 195.66.224.147 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.129 |
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.118.191 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.229.142 |
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.89.122 |
| Seattle Internet Exchange | Seattle, United States | 206.81.80.131 |
| Coresite - Any2 West | Los Angeles, United States | 206.72.211.139 |
Transit providers
30 upstream, 560 downstream and 595 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6,433 prefixes · 46.38M addresses IPv6 113 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 6,546 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4766- Registry name
- KIXS-AS-KR-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1996-04-22
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- KT Corporation (Korea Telecom)
- Also known as
- KORNET
- Network type
- Cable/DSL/ISP
- Scope
- Global
- Traffic ratio
- Mostly Inbound
- Peering policy
- Selective
- IRR as-set
AS-KORNET- Present at
- 14 exchanges
- Facilities
- 8 facilities
- Website
- http://www.kt.com/eng/main.jsp
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 5% valid · 134 valid, 2,652 with no ROA 2 RPKI-invalid
- ROAs
- 166 authorising AS4766
- ASPA
- no ASPA record
- IRR
- 88% registered · 2,460 of 2,788 announcements 88 other origin
- Route objects
- 2,645 naming AS4766
Reputation
Classification and threat
Mobile Cellular carrier. Addresses are shared by many handsets via CGNAT.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
1 DROP match Announced space overlapping the DROP prefix list.
| Announced | DROP entry | Record |
|---|---|---|
| 115.144.64.0/18 | 115.144.69.0/24 | SBL506125 |
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
1 IC3 indicators addresses in this network appear in FBI IC3 cybersecurity advisories.
| Prefix | Advisory | Published |
|---|---|---|
222.99.101.22 | China-Linked Hacking Group QTFY Targets Military and Critical Infrastructure with Malicious Distributed Systems | 2026-08-26 |
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere