Autonomous system
AS9943 KNCTV-AS KangNam CableTV
Residential RIPE
Summary
KangNam Cable TV (D'LIVE)
isp residential legacy
AS9943 (KNCTV-AS-KR) is held by KangNam Cable TV, the cable system operator for the Gangnam district of Seoul. The company is part of D'LIVE, the Seoul/Gyeonggi cable MSO that traded as C&M Communications until it rebranded in 2016; KangNam Cable TV today operates under the D'LIVE brand.
What it's used for
This is a residential cable broadband network. RIS sees 113 IPv4 prefixes carrying 229,632 addresses and no IPv6. The shape of the space is what a Korean cable SO's estate looks like after two decades of piecemeal growth: a handful of large residential aggregates — 27.1.0.0/18, 27.1.64.0/18, 27.1.128.0/18, 27.1.192.0/18, 14.138.0.0/18, 14.138.64.0/18, 14.138.128.0/18 — carrying the bulk of the subscribers, surrounded by dozens of scattered /22s picked up individually from ranges as varied as 110.92.x, 113.10.x, 117.53.x, 123.98.x, 202.136.x, 203.130.x and 211.41.x.
Two observed neighbours confirms the eyeball role. A quarter of a million addresses with only two BGP adjacencies means this network buys transit from a Korean carrier and sells access to households. There is no peering business and no wholesale function; the address count exists to serve subscribers, not to move other people's traffic.
Notable
- A cable-TV company owning its own ASN and a six-figure address block is characteristic of the South Korean market, where broadcast SOs became major broadband ISPs in their own right.
- KangNam Cable TV has changed hands repeatedly — it passed through GS Home Shopping's ownership before joining C&M, which became D'LIVE — but the ASN and the
KNCTVhandle have persisted through every change.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 50 prefixes · 226K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 50 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9943- Registry name
- KNCTV-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 2000-04-14
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 113 with no ROA
- ROAs
- 0 authorising AS9943
- ASPA
- no ASPA record
- IRR
- 100% registered · 113 of 113 announcements
- Route objects
- 142 naming AS9943
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 440 networks and 1,773 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere