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AS45361 Ulsan Jung-Ang Broadcasting Network

South Korea JCN-AS-KR APNIC 20 IPv4 prefixes 0 IPv6 prefixes
IPv4 addresses
151,040
IPv6 /48 networks
0
RPKI
0 valid20 no ROA
Peers and downstreams
1

Holder

AS name
JCN-AS-KR
Description
Ulsan Jung-Ang Broadcasting Network
Organisation
Ulsan Jung-Ang Broadcasting Network
Abuse contact
Not published
Assigned
2008-08-18

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS2914 NTT America, Inc. AS2914 · US NTT America, Inc. AS701 Uunet AS701 · US Uunet AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS6057 Administracion Nacional de Telecomunicaciones AS6057 · UY Administracion Nacion… AS25091 IP-Max SA AS25091 · CH IP-Max SA AS3491 PCCW Global (HK) Ltd. AS3491 · HK PCCW Global (HK) Ltd. AS9318 SK Broadband Co Ltd AS9318 · KR SK Broadband Co Ltd AS4766 Korea Telecom AS4766 · KR Korea Telecom AS3786 LG DACOM Corporation AS3786 · KR LG DACOM Corporation AS9848 SEJONG NETWORKS AS9848 · KR SEJONG NETWORKS AS45361 Ulsan Jung-Ang Broadcasting Network AS45361 · KR Ulsan Jung-Ang Broadc…

Network health

Grade D · 47/100
fail Prefixes covered by valid ROAs
0 of 20 announced prefixes are RPKI valid, 20 have no ROA.		 0/25
pass No RPKI invalid announcements
None of the announcements is RPKI invalid.		 10/10
fail Announces IPv6
No IPv6 prefixes are announced.		 0/15
pass More than one upstream
4 upstreams seen in BGP.		 10/10
pass Working abuse contact
hostmaster@nic.or.kr is published.		 15/15
fail Publishes a geofeed
No geofeed found. Without one, location databases have to guess.		 0/10
pass No prefixes smaller than /24 or /48
All prefixes are /24 (IPv4) or /48 (IPv6) or larger.		 10/10
n/a Registry record maintained
We have no change date for this record.
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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AS45361 health AS45361 RPKI
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Routing changes

Last 30 days
2026-10-05 15:22 UTCRelationship changed AS9957 upstream to peer

WHOIS

aut-num:        AS45361
as-name:        JCN-AS-KR-KR
handle:         AS45361
remarks:        Ulsan Jung-Ang Broadcasting Network
administrative,technical:CK1641-KR (AS Manager) <ckcho@jcntv.co.kr>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
source:         APNIC (RDAP)