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Autonomous System

AS9870

DONG-EUI UNIVERSITY

Announced IPs
22,784
CIDR prefixes
18
ASN
AS9870

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.

71/100
Moderate
How this score is built

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

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS9870 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
114.70.188.0/23 7,990 2026-07-23 21:19:47
114.70.189.0/24 7,976 2026-07-23 21:19:47
113.198.224.0/19 7,975 2026-07-23 21:19:47
114.70.188.0/24 7,975 2026-07-23 21:19:47
114.70.180.0/22 7,968 2026-07-23 21:19:47
114.70.186.0/23 7,965 2026-07-23 21:19:47
113.198.221.0/24 7,964 2026-07-23 21:19:47
114.70.180.0/23 7,963 2026-07-23 21:19:47
114.70.184.0/22 7,963 2026-07-23 21:19:47
220.119.44.0/24 7,959 2026-07-23 21:19:46
114.70.184.0/23 7,958 2026-07-23 21:19:47
114.70.182.0/23 7,957 2026-07-23 21:19:47
113.198.222.0/23 7,957 2026-07-23 21:19:47
210.107.244.0/24 7,949 2026-07-23 21:19:46
121.144.146.0/23 7,949 2026-07-23 21:19:47
203.241.200.0/21 7,946 2026-07-23 21:19:47
210.107.242.0/23 7,946 2026-07-23 21:19:46
121.144.149.0/24 7,945 2026-07-23 21:19:47
220.73.231.0/24 7,943 2026-07-23 21:19:46
203.241.192.0/21 7,943 2026-07-23 21:19:47
210.107.245.0/24 7,942 2026-07-23 21:19:46
210.107.240.0/23 7,942 2026-07-23 21:19:46
210.107.240.0/22 7,940 2026-07-23 21:19:46
121.144.144.0/23 7,940 2026-07-23 21:19:47
220.119.46.0/24 7,938 2026-07-23 21:19:46
121.144.142.0/23 7,937 2026-07-23 21:19:47
220.73.232.0/24 7,937 2026-07-23 21:19:46
121.144.140.0/22 7,937 2026-07-23 21:19:47
220.68.8.0/24 7,936 2026-07-23 21:19:46
121.144.148.0/23 7,935 2026-07-23 21:19:47
121.144.144.0/22 7,934 2026-07-23 21:19:47
121.144.148.0/24 7,934 2026-07-23 21:19:47
203.241.192.0/20 7,934 2026-07-23 21:19:47
220.119.45.0/24 7,933 2026-07-23 21:19:46
220.119.44.0/23 7,932 2026-07-23 21:19:46
220.68.6.0/23 7,931 2026-07-23 21:19:46
121.144.140.0/23 7,929 2026-07-23 21:19:47
220.68.4.0/23 7,926 2026-07-23 21:19:46
220.73.230.0/23 7,926 2026-07-23 21:19:46
220.73.232.0/23 7,924 2026-07-23 21:19:46
220.73.230.0/24 7,923 2026-07-23 21:19:46
220.68.4.0/22 7,923 2026-07-23 21:19:46
220.73.233.0/24 7,918 2026-07-23 21:19:46
113.198.222.0/24 7,894 2026-07-23 21:19:46
113.198.240.0/20 7,889 2026-07-23 21:19:46
114.70.187.0/24 7,889 2026-07-23 21:19:46
114.70.181.0/24 7,885 2026-07-23 21:19:46
113.198.224.0/20 7,881 2026-07-23 21:19:46
113.198.223.0/24 7,873 2026-07-23 21:19:46
134.75.226.0/24 2,263 2026-07-23 21:19:47

Showing top 50 of 58 announced prefixes by sample volume.

Frequently Asked Questions

What is AS9870?

AS9870 is an Autonomous System Number assigned to DONG-EUI UNIVERSITY. 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 AS9870 announce?

AS9870 announces 22.8K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in South Korea.

Who operates AS9870?

AS9870 is operated by DONG-EUI UNIVERSITY. The organization is based in South Korea. You can view all IP ranges and related ASNs on the organization page.

What country is AS9870 registered in?

AS9870 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: 2026-07-23 22:10:32 UTC
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