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AS55592 Korea Data Telecommunication Co., Ltd.

South Korea KDT-AS-KR APNIC 121 IPv4 prefixes 0 IPv6 prefixes
IPv4 addresses
31,744
IPv6 /48 networks
0
RPKI
0 valid121 no ROA
Peers and downstreams
0

Holder

AS name
KDT-AS-KR
Description
Korea Data Telecommunication Co., Ltd.
Organisation
Korea Data Telecommunication Co., Ltd.
Abuse contact
Not published
Assigned
2010-07-20
101.55.0.0/24101.55.102.0/24101.55.104.0/24101.55.109.0/24101.55.11.0/24101.55.111.0/24101.55.112.0/23101.55.115.0/24101.55.116.0/24101.55.117.0/24101.55.118.0/24101.55.12.0/24101.55.122.0/24101.55.123.0/24101.55.124.0/24101.55.125.0/24101.55.126.0/24101.55.127.0/24101.55.13.0/24101.55.14.0/24101.55.17.0/24101.55.19.0/24101.55.2.0/24101.55.20.0/24101.55.22.0/24101.55.25.0/24101.55.26.0/24101.55.27.0/24101.55.28.0/24101.55.29.0/24101.55.3.0/24101.55.30.0/24101.55.31.0/24101.55.32.0/24101.55.33.0/24101.55.36.0/24101.55.37.0/24101.55.38.0/24101.55.40.0/22101.55.40.0/24101.55.45.0/24101.55.46.0/24101.55.47.0/24101.55.5.0/24101.55.50.0/24101.55.51.0/24101.55.52.0/24101.55.53.0/24101.55.54.0/24101.55.55.0/24101.55.57.0/24101.55.58.0/24101.55.6.0/24101.55.60.0/24101.55.61.0/24101.55.62.0/24101.55.63.0/24101.55.64.0/24101.55.65.0/24101.55.66.0/24101.55.68.0/24101.55.69.0/24101.55.70.0/24101.55.71.0/24101.55.72.0/24101.55.73.0/24101.55.74.0/24101.55.75.0/24101.55.77.0/24101.55.78.0/24101.55.79.0/24101.55.8.0/24101.55.80.0/24101.55.81.0/24101.55.83.0/24101.55.84.0/24101.55.87.0/24101.55.88.0/24101.55.89.0/24101.55.90.0/24101.55.91.0/24101.55.92.0/24101.55.93.0/24101.55.94.0/24101.55.95.0/24101.55.96.0/24101.55.98.0/24101.55.99.0/24103.5.144.0/24103.5.145.0/24103.5.146.0/24103.5.147.0/24121.140.104.0/24121.140.118.0/24121.140.137.0/24121.140.50.0/24121.170.147.0/24175.197.50.0/24175.197.89.0/24175.198.65.0/24203.234.201.0/24203.234.216.0/24203.234.240.0/24203.234.243.0/24203.236.48.0/24210.113.113.0/24210.121.190.0/24210.124.164.0/24210.126.13.0/24210.183.25.0/24211.193.48.0/24211.197.0.0/24211.40.118.0/24211.44.3.0/24211.44.63.0/24218.146.101.0/24221.150.114.0/2445.64.153.0/2445.64.154.0/2445.64.155.0/2461.82.148.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths
AS6939 Hurricane Electric LLC AS6939 · US Hurricane Electric LLC AS174 AS174 AS174 AS174 AS3356 Level 3 Parent, LLC AS3356 · US Level 3 Parent, LLC AS1299 Arelion Sweden AB AS1299 · SE Arelion Sweden AB AS4766 Korea Telecom AS4766 · KR Korea Telecom AS55592 Korea Data Telecommunication Co., Ltd. AS55592 · KR Korea Data Telecommun…

Network health

Grade E · 31/100
fail Prefixes covered by valid ROAs
0 of 121 announced prefixes are RPKI valid, 121 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
partly More than one upstream
1 upstream seen in BGP.		 5/10
n/a Working abuse contact
We have no registry record to check.
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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Routing changes

Last 30 days
2026-10-06 07:41 UTCNew prefix 101.55.122.0/24
2026-10-06 07:41 UTCNew prefix 101.55.87.0/24