Autonomous system
AS7562 HCNSEOCHO-AS-KR HCN Dongjak
Residential APNIC
Summary
HCN (KT HCN)
isp legacy
HCNSEOCHO-AS-KR is one of the regional networks of HCN, a South Korean cable operator. HCN was formerly Hyundai HCN, was acquired by KT Skylife in 2021, and now trades as KT HCN. The registry describes this AS as the Dongjak network, run from HCN's offices on Banpo-daero in Seoul.
What it's used for
- Cable broadband and cable television for homes in HCN's Seoul franchise areas. Korean cable operators are licensed by district, and this AS carries one such regional network.
- The AS holds over a hundred thousand addresses across more than a hundred prefixes, which is subscriber-scale rather than corporate-scale.
Notable
- An eyeball network. The addresses sit in front of residential cable modem customers, so they should be read as consumer broadband and not as hosting or business space.
- The handle and the description disagree about which district this is: the handle says Seocho, the registry description says Dongjak. Both are Seoul districts, and the registered address is HCN's own office rather than the franchise area, so neither should be leaned on for fine-grained geolocation within Seoul.
- Reverse DNS is absent across the space. That is normal for Korean access networks and is not in itself a warning sign.
Interesting
- KT Skylife's purchase of HCN drew antitrust conditions in Korea, because the KT group already led both pay-TV and fixed broadband and HCN was dominant in several of its local markets.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Korea Internet Neutral Exchange KINX | Seoul, South Korea | 139.150.100.36 |
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 133 prefixes · 109K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 133 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS7562- Registry name
- HCNSEOCHO-AS-KR-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1997-05-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 1% valid · 2 valid, 136 with no ROA
- ROAs
- 2 authorising AS7562
- ASPA
- no ASPA record
- IRR
- 76% registered · 105 of 138 announcements 20 other origin
- Route objects
- 138 naming AS7562
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: 442 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