Autonomous System

AS17841

NATIONAL INFORMATION RESOURCES SERVICE

NATIONAL INFORMATION RESOURCES SERVICE South Korea 🌐 korea.kr

Announced IPs

227,328

CIDR prefixes

ASN

AS17841

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

57/100

Caution

How this score is built

Baseline (neutral) 65
Active-threat / abuse risk −12
Enterprise allocation +4
Trust score 57 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About National Information Resources Service

Parent

Ministry of the Interior and Safety

Official website ↗ Data from Wikidata

⚠ 11 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS17841 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

Prefix	Origin ASNs	Last detected (UTC)
210.90.47.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.165.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.160.0/24	AS17574, AS17841	2026-09-01 02:39:15
210.90.46.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.163.0/24	AS17574, AS17841	2026-09-01 02:39:15
211.253.60.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.162.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.167.0/24	AS17574, AS17841	2026-09-01 02:39:15
115.84.164.0/24	AS17574, AS17841	2026-09-01 02:39:15
211.253.61.0/24	AS17574, AS17841	2026-08-31 07:54:09
115.84.166.0/24	AS17574, AS17841	2026-08-30 17:09:03

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
27.101.0.0/16	65.5K	0.1%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
152.99.0.0/16	65.5K	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	North Chungcheong	Cheongju-si
116.67.0.0/17	32.8K	0.3%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
125.60.0.0/18	16.4K	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
125.128.64.0/19	8.2K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Seoul	Seoul
203.238.160.0/20	4.1K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
115.84.160.0/21	2.0K	0.3%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.99.48.0/21	2.0K	0.1%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
222.111.248.0/21	2.0K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
168.126.120.0/22	1.0K	1.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.242.0.0/22	1.0K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.42.72.0/22	1.0K	0.1%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.173.36.0/22	1.0K	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
222.111.168.0/22	1.0K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.224.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.238.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
125.61.116.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.72.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.98.0/23	512	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.233.54.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.233.56.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.254.96.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.90.46.0/23	512	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.99.24.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Ulsan	Nam-gu
210.103.82.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Busan	Saha-gu
210.178.100.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.34.108.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.39.92.0/23	512	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.42.84.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.173.34.0/23	512	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.60.0/23	512	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.98.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
58.184.121.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.226.0/24	256	4.3%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.230.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.104.76.0/24	256	10.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
123.32.255.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.69.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.85.0/24	256	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.86.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.93.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
180.210.94.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.241.52.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.242.4.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.242.6.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.243.1.0/24	256	4.3%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.254.110.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
203.254.121.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.90.8.0/24	256	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.90.15.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.95.181.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.95.187.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Chungcheongnam-do	Hongseong-gun
210.95.219.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.97.27.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.99.62.0/24	256	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.99.248.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.103.63.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.103.72.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Daejeon	Seo-gu
210.103.81.0/24	256	1.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.41.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.140.0/24	256	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.148.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.249.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.250.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.106.108.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.179.148.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.179.205.0/24	256	1.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.34.86.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.39.76.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.39.91.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.39.94.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.42.86.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.57.153.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.61.29.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.112.154.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.114.22.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Gyeonggi-do	Suwon
211.114.24.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.173.46.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.184.197.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.250.131.0/24	256	3.9%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.252.37.0/24	256	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.252.203.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.60.0/24	256	0.0%	—	KR	—	—
211.253.62.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.82.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.121.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.122.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.124.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.148.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS17841 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
152.99.21.0/24	28,468	2026-08-31 23:35:10
152.99.22.0/24	28,458	2026-08-31 23:35:10
152.99.26.0/24	28,426	2026-08-31 23:35:10
152.99.24.0/24	28,398	2026-08-31 23:35:10
152.99.27.0/24	28,390	2026-08-31 23:35:10
152.99.25.0/24	28,380	2026-08-31 23:35:10
152.99.164.0/24	26,539	2026-08-31 23:35:10
152.99.167.0/24	26,525	2026-08-31 23:35:10
152.99.161.0/24	26,523	2026-08-31 23:35:10
152.99.137.0/24	26,522	2026-08-31 23:35:10
152.99.139.0/24	26,521	2026-08-31 23:35:10
152.99.165.0/24	26,517	2026-08-31 23:35:10
152.99.134.0/24	26,514	2026-08-31 23:35:10
152.99.135.0/24	26,513	2026-08-31 23:35:10
152.99.162.0/24	26,512	2026-08-31 23:35:10
152.99.138.0/24	26,494	2026-08-31 23:35:10
152.99.163.0/24	26,465	2026-08-31 23:35:10
152.99.136.0/24	26,455	2026-08-31 23:35:10
222.111.248.0/24	25,973	2026-08-31 23:35:10
152.99.146.0/24	24,334	2026-08-31 23:35:10
152.99.147.0/24	24,275	2026-08-31 23:35:10
152.99.47.0/24	24,182	2026-08-31 23:35:10
152.99.148.0/24	24,178	2026-08-31 23:35:10
152.99.149.0/24	24,170	2026-08-31 23:35:10
152.99.142.0/24	24,140	2026-08-31 23:35:10
152.99.144.0/24	24,139	2026-08-31 23:35:10
152.99.143.0/24	24,123	2026-08-31 23:35:10
152.99.145.0/24	24,095	2026-08-31 23:35:10
152.99.39.0/24	24,094	2026-08-31 23:35:10
152.99.38.0/24	24,093	2026-08-31 23:35:10
152.99.141.0/24	24,089	2026-08-31 23:35:10
152.99.160.0/24	24,076	2026-08-31 23:35:10
152.99.37.0/24	24,069	2026-08-31 23:35:10
152.99.44.0/24	24,057	2026-08-31 23:35:10
152.99.36.0/24	24,054	2026-08-31 23:35:10
152.99.28.0/24	24,047	2026-08-31 23:35:10
152.99.29.0/24	24,037	2026-08-31 23:35:10
27.101.95.0/24	23,431	2026-08-31 23:35:10
27.101.94.0/24	23,426	2026-08-31 23:35:10
27.101.96.0/24	23,386	2026-08-31 23:35:10
27.101.28.0/24	23,276	2026-08-31 23:35:10
27.101.29.0/24	23,260	2026-08-31 23:35:10
27.101.31.0/24	23,247	2026-08-31 23:35:10
152.99.41.0/24	23,241	2026-08-31 23:35:10
27.101.26.0/24	23,237	2026-08-31 23:35:10
27.101.30.0/24	23,220	2026-08-31 23:35:10
27.101.27.0/24	23,220	2026-08-31 23:35:10
27.101.32.0/24	23,215	2026-08-31 23:35:10
152.99.42.0/24	23,212	2026-08-31 23:35:10
152.99.43.0/24	23,203	2026-08-31 23:35:10

Showing top 50 of 737 announced prefixes by sample volume.

Frequently Asked Questions

What is AS17841?

AS17841 is an Autonomous System Number assigned to NATIONAL INFORMATION RESOURCES SERVICE. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS17841 announce?

AS17841 announces 227.3K IPv4 addresses distributed across 88 routed CIDR prefixes. The network is registered in South Korea.

Who operates AS17841?

AS17841 is operated by NATIONAL INFORMATION RESOURCES SERVICE. The organization is based in South Korea. You can view all IP ranges and related ASNs on the organization page.

What country is AS17841 registered in?

AS17841 is registered in South Korea. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-09-01 02:39:06 UTC