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.
- Baseline (neutral) 65
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: KINX
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS1237 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 |
|---|---|---|
| 203.253.230.0/23 | 941,416 | 2026-07-22 16:49:53 |
| 203.247.188.0/24 | 941,362 | 2026-07-22 16:49:53 |
| 210.110.232.0/24 | 940,230 | 2026-07-22 16:49:53 |
| 203.250.156.0/24 | 939,739 | 2026-07-22 16:49:53 |
| 210.107.146.0/24 | 939,237 | 2026-07-22 16:49:53 |
| 210.117.212.0/24 | 939,011 | 2026-07-22 16:49:53 |
| 203.247.184.0/24 | 938,559 | 2026-07-22 16:49:53 |
| 210.117.214.0/23 | 938,090 | 2026-07-22 16:49:53 |
| 210.219.56.0/21 | 936,740 | 2026-07-22 16:49:53 |
| 210.98.14.0/23 | 936,518 | 2026-07-22 16:49:53 |
| 210.119.64.0/19 | 936,065 | 2026-07-22 16:49:53 |
| 210.218.206.0/23 | 935,541 | 2026-07-22 16:49:53 |
| 203.250.156.0/22 | 935,275 | 2026-07-22 16:49:53 |
| 203.253.96.0/20 | 934,637 | 2026-07-22 16:49:53 |
| 210.117.209.0/24 | 934,592 | 2026-07-22 16:49:53 |
| 210.107.252.0/23 | 934,403 | 2026-07-22 16:49:53 |
| 210.110.182.0/24 | 934,208 | 2026-07-22 16:49:53 |
| 202.30.60.0/22 | 933,979 | 2026-07-22 16:49:53 |
| 203.230.60.0/22 | 933,919 | 2026-07-22 16:49:53 |
| 210.117.216.0/24 | 933,746 | 2026-07-22 16:49:53 |
| 203.253.224.0/23 | 933,624 | 2026-07-22 16:49:53 |
| 210.110.189.0/24 | 933,599 | 2026-07-22 16:49:53 |
| 203.250.182.0/24 | 933,275 | 2026-07-22 16:49:53 |
| 210.119.71.0/24 | 933,215 | 2026-07-22 16:49:53 |
| 210.117.236.0/24 | 932,840 | 2026-07-22 16:49:53 |
| 210.218.203.0/24 | 932,831 | 2026-07-22 16:49:53 |
| 210.119.37.0/24 | 932,809 | 2026-07-22 16:49:53 |
| 210.110.192.0/22 | 932,718 | 2026-07-22 16:49:53 |
| 203.230.126.0/24 | 932,588 | 2026-07-22 16:49:53 |
| 134.75.0.0/16 | 932,482 | 2026-07-22 16:49:53 |
| 210.110.183.0/24 | 932,475 | 2026-07-22 16:49:53 |
| 210.117.240.0/21 | 932,247 | 2026-07-22 16:49:53 |
| 210.219.62.0/23 | 932,216 | 2026-07-22 16:49:53 |
| 203.230.6.0/24 | 931,986 | 2026-07-22 16:49:53 |
| 203.247.170.0/23 | 931,871 | 2026-07-22 16:49:53 |
| 203.247.160.0/22 | 931,710 | 2026-07-22 16:49:53 |
| 203.241.164.0/24 | 931,656 | 2026-07-22 16:49:53 |
| 203.230.108.0/22 | 931,143 | 2026-07-22 16:49:53 |
| 210.98.12.0/24 | 931,092 | 2026-07-22 16:49:53 |
| 210.125.84.0/23 | 930,866 | 2026-07-22 16:49:53 |
| 203.247.187.0/24 | 930,846 | 2026-07-22 16:49:53 |
| 203.247.216.0/22 | 930,720 | 2026-07-22 16:49:53 |
| 203.253.140.0/22 | 930,706 | 2026-07-22 16:49:53 |
| 203.254.40.0/24 | 930,690 | 2026-07-22 16:49:53 |
| 210.219.45.0/24 | 930,589 | 2026-07-22 16:49:53 |
| 210.98.26.0/24 | 930,502 | 2026-07-22 16:49:53 |
| 210.117.225.0/24 | 930,061 | 2026-07-22 16:49:53 |
| 210.107.144.0/24 | 929,953 | 2026-07-22 16:49:53 |
| 203.247.73.0/24 | 929,940 | 2026-07-22 16:49:53 |
| 210.119.72.0/24 | 929,644 | 2026-07-22 16:49:53 |
Showing top 50 of 212 announced prefixes by sample volume.
Frequently Asked Questions
What is AS1237?
AS1237 is an Autonomous System Number assigned to KISTI. 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 AS1237 announce?
AS1237 announces 292.9K IPv4 addresses distributed across 212 routed CIDR prefixes. The network is registered in South Korea.
Who operates AS1237?
AS1237 is operated by KISTI. The organization is based in South Korea. You can view all IP ranges and related ASNs on the organization page.
What country is AS1237 registered in?
AS1237 is registered in South Korea. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
