Autonomous System

AS17841

NATIONAL INFORMATION RESOURCES SERVICE

NATIONAL INFORMATION RESOURCES SERVICE South Korea 🌐 korea.kr

Announced IPs

227,840

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 v1.2.1 — 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

⚠ 12 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	2026-10-22 13:05:53
115.84.165.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.160.0/24	AS17574, AS17841	2026-10-22 13:05:53
210.90.46.0/24	AS17574, AS17841	2026-10-22 13:05:53
211.253.61.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.163.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.166.0/24	AS17574, AS17841	2026-10-22 13:05:53
211.253.60.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.162.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.167.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.164.0/24	AS17574, AS17841	2026-10-22 13:05:53
115.84.161.0/24	AS17574, AS17841	2026-10-22 13:05:53

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
27.101.0.0/16	65.5K	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
152.99.0.0/16	65.5K	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Daegu	Dalseo-gu
116.67.0.0/17	32.8K	0.4%	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	0.1%	NATIONAL INFORMATION RESOURCES SERVICE	KR	Sejong-si	Sejong
203.238.160.0/20	4.1K	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
115.84.160.0/21	2.0K	1.1%	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	1.5%	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	1.3%	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	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.238.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
101.79.44.0/23	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	0.6%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.99.24.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.103.82.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
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	0.6%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
211.253.98.0/23	512	0.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
58.184.121.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.226.0/24	256	4.3%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.72.230.0/24	256	0.4%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
61.104.76.0/24	256	100.0%	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	0.8%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.103.72.0/24	256	0.0%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.103.81.0/24	256	1.2%	NATIONAL INFORMATION RESOURCES SERVICE	KR	—	—
210.104.41.0/24	256	0.8%	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	0.4%	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	Guri-si
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	—	—
211.253.62.0/24	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
152.99.175.0/24	231,969	2026-10-22 13:03:06
152.99.176.0/24	231,788	2026-10-22 13:03:06
152.99.171.0/24	231,658	2026-10-22 13:03:06
152.99.174.0/24	231,644	2026-10-22 13:03:06
152.99.177.0/24	231,563	2026-10-22 13:03:06
152.99.170.0/24	231,474	2026-10-22 13:03:06
152.99.172.0/24	231,353	2026-10-22 13:03:06
152.99.173.0/24	231,326	2026-10-22 13:03:06
152.99.21.0/24	57,096	2026-10-22 12:57:36
152.99.22.0/24	57,078	2026-10-22 12:57:36
152.99.26.0/24	57,030	2026-10-22 12:57:36
152.99.24.0/24	57,016	2026-10-22 12:57:36
152.99.25.0/24	57,008	2026-10-22 12:57:36
152.99.27.0/24	57,004	2026-10-22 12:57:36
152.99.47.0/24	56,392	2026-10-22 13:03:04
152.99.38.0/24	56,297	2026-10-22 13:03:04
152.99.39.0/24	56,281	2026-10-22 13:03:04
152.99.44.0/24	56,226	2026-10-22 13:03:04
152.99.37.0/24	56,224	2026-10-22 13:03:04
152.99.28.0/24	56,191	2026-10-22 13:03:04
152.99.36.0/24	56,178	2026-10-22 13:03:04
152.99.29.0/24	56,167	2026-10-22 13:03:04
222.111.248.0/24	56,050	2026-10-22 12:57:36
152.99.164.0/24	55,240	2026-10-22 12:57:36
152.99.167.0/24	55,230	2026-10-22 12:57:36
152.99.137.0/24	55,210	2026-10-22 12:57:36
152.99.139.0/24	55,173	2026-10-22 12:57:36
152.99.134.0/24	55,165	2026-10-22 12:57:36
152.99.161.0/24	55,164	2026-10-22 12:57:36
152.99.135.0/24	55,159	2026-10-22 12:57:36
152.99.165.0/24	55,150	2026-10-22 12:57:36
152.99.162.0/24	55,145	2026-10-22 12:57:36
152.99.138.0/24	55,140	2026-10-22 12:57:36
152.99.163.0/24	55,127	2026-10-22 12:57:36
152.99.136.0/24	55,109	2026-10-22 12:57:36
27.101.95.0/24	53,613	2026-10-22 12:57:36
27.101.94.0/24	53,605	2026-10-22 12:57:36
27.101.96.0/24	53,580	2026-10-22 12:57:36
27.101.28.0/24	53,496	2026-10-22 12:57:36
27.101.33.0/24	53,479	2026-10-22 12:57:36
27.101.29.0/24	53,460	2026-10-22 12:57:36
27.101.31.0/24	53,421	2026-10-22 12:57:36
27.101.30.0/24	53,415	2026-10-22 12:57:36
27.101.32.0/24	53,411	2026-10-22 12:57:36
27.101.35.0/24	53,410	2026-10-22 12:57:36
27.101.26.0/24	53,406	2026-10-22 12:57:36
27.101.34.0/24	53,400	2026-10-22 12:57:36
27.101.37.0/24	53,399	2026-10-22 12:57:36
27.101.39.0/24	53,391	2026-10-22 12:57:36
27.101.27.0/24	53,388	2026-10-22 12:57:36

Showing top 50 of 739 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 227.8K IPv4 addresses distributed across 89 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: 2026-10-22 13:09:05 UTC