AS17841 — NCIA-AS-KR NATIONAL INFORMATION RESOURCES SERVICE
AS17841 announces 87 IPv4 prefixes covering 225,024 addresses and 0 IPv6 prefixes.
About this network
NCIA-AS-KR is operated by National Information Resources Service.
What it's used for
- The address space carries government and public sector infrastructure, evidenced by netnames NIRS-KR and KORNET-KR registered to IRT-KRNIC-KR.
- The AS announces 224,768 IPv4 addresses across 186 prefixes with only 7 observed neighbours, indicating a large-scale access or internal corporate estate rather than a transit provider.
Notable
- Registrants consistently align with the announcer, with IRT-KRNIC-KR listed for all sampled prefixes.
- The inventory is heavily subdivided into /19, /20, and /21 blocks, particularly within the 152.99.0.0/19 and 27.101.0.0/17 ranges, suggesting site-by-site segmentation for a large organization.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 27.101.0.0/16
- 58.184.121.0/24
- 61.72.224.0/23
- 61.72.226.0/24
- 61.72.230.0/24
- 61.72.238.0/23
- 61.104.76.0/24
- 101.79.44.0/23
- 116.67.0.0/17
- 123.32.255.0/24
- 125.60.0.0/18
- 125.61.116.0/23
- 125.128.64.0/19
- 152.99.0.0/16
- 168.126.120.0/22
- 180.210.69.0/24
- 180.210.72.0/23
- 180.210.85.0/24
- 180.210.86.0/24
- 180.210.93.0/24
- 180.210.94.0/24
- 180.210.98.0/23
- 203.233.54.0/23
- 203.233.56.0/23
- 203.238.160.0/20
- 203.241.52.0/24
- 203.242.0.0/22
- 203.242.4.0/24
- 203.242.6.0/24
- 203.243.1.0/24
- 203.254.96.0/23
- 203.254.110.0/24
- 203.254.121.0/24
- 210.90.8.0/24
- 210.90.15.0/24
- 210.95.181.0/24
- 210.95.187.0/24
- 210.95.219.0/24
- 210.97.27.0/24
- 210.99.24.0/23
- 210.99.48.0/21
- 210.99.62.0/24
- 210.99.248.0/24
- 210.103.63.0/24
- 210.103.72.0/24
- 210.103.81.0/24
- 210.103.82.0/23
- 210.104.41.0/24
- 210.104.140.0/24
- 210.104.148.0/24
- 210.104.249.0/24
- 210.104.250.0/24
- 210.106.108.0/24
- 210.178.100.0/23
- 210.179.148.0/24
- 210.179.205.0/24
- 211.34.86.0/24
- 211.34.108.0/23
- 211.39.76.0/24
- 211.39.91.0/24
- 211.39.92.0/23
- 211.39.94.0/24
- 211.42.72.0/22
- 211.42.84.0/23
- 211.42.86.0/24
- 211.57.153.0/24
- 211.61.29.0/24
- 211.112.154.0/24
- 211.114.22.0/24
- 211.114.24.0/24
- 211.173.34.0/23
- 211.173.36.0/22
- 211.173.46.0/24
- 211.184.197.0/24
- 211.250.131.0/24
- 211.252.37.0/24
- 211.252.203.0/24
- 211.253.60.0/24
- 211.253.62.0/24
- 211.253.82.0/24
- 211.253.98.0/23
- 211.253.121.0/24
- 211.253.122.0/24
- 211.253.124.0/24
- 211.253.148.0/24
- 222.111.168.0/22
- 222.111.248.0/21
Upstream networks
- AS4766 Korea Telecom
- AS9318 SK Broadband Co Ltd
- AS3786 LG DACOM Corporation
- AS14841 AIRWAVE BROADBAND WIRELESS. INC.
Downstream networks
Adjacent networks
BGP / ASN / CIDR
awaiting query
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED