Autonomous system
AS45361 JCN-AS-KR Ulsan Jung-Ang Broadcasting Network
Residential APNIC
Summary
JCNTV
cable isp residential korea
The AS handle JCN-AS-KR is held by JCNTV (Ulsan Jung-Ang Broadcasting Network).
What it's used for
- The address space carries residential and business internet access, identified by the netname
JCN-KRacross all announced prefixes. - The network announces 151040 IPv4 addresses across 17 prefixes with 5 observed neighbours, a ratio indicative of an access provider rather than a transit carrier.
- Traffic consists of subscriber eyeballs for cable and DSL services in the Ulsan region of South Korea.
Notable
- All registrants are listed as
IRT-KRNIC-KRwith the netnameJCN-KR, consistent with the announcer. - The address inventory is subdivided into multiple blocks, including /17, /18, and /19 prefixes, reflecting internal segmentation of the service area.
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 | 139.150.100.214 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 151K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 17 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS45361- Registry name
- JCN-AS-KR-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 2008-08-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 20 with no ROA
- ROAs
- 0 authorising AS45361
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 74 naming AS45361
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 1,778 prefixes, as published 2026-10-20. 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