IP / ASN / Domain Lookup
IP Lookup Result
IP Address
203.243.128.4
Location
South Korea,Seoul,Seoul
ASN
Company
ISP
SEJONG NETWORKS
Longitude
126.9784
126.9784
Latitude
37.566
37.566
Native IP
Residential
19%Risk Score
19% Risk Score
IP Address (Decimal)
3421732868
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 203.243.128.0/24 | ISP SEJONG NETWORKS | South Korea | 📅 2025-06-18 21:15 | 📅 2025-10-27 01:40 | |
| 203.243.128.0/21 | ISP SEJONG NETWORKS | South Korea | 📅 2025-06-18 14:18 | 📅 2025-10-20 11:55 | |
| 203.243.128.0/17 | ISP SEJONG NETWORKS | South Korea | 📅 2004-02-06 13:45 | 📅 2025-10-20 11:55 | |
| 203.243.128.0/21 | ISP PUSAN CABLE TV SYSTEM CO., LTD. | South Korea | 📅 2017-01-01 08:36 | 📅 2023-07-25 16:19 | |
| 203.243.128.0/17 | IDC I.Net Technologies Inc. | South Korea | 📅 2001-10-29 03:18 | 📅 2003-10-28 05:22 | |
| 203.243.128.0/17 | ISP Availo Networks AB | Sweden | 📅 2002-04-17 06:19 | 📅 2002-04-17 06:22 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ISP APNIC-AP | 203.0.0.0/8 | 📅 2023-09-05 09:46 | 📅 2025-10-27 08:42 |
IDC NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 203.202.234.0/10 | 📅 2024-12-30 23:33 | 📅 2025-10-27 08:37 |
ISP SEJONG-KR | 203.243.128.0/17 | 📅 - | 📅 2025-10-27 01:40 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 203.0.0.0/8 |  APNIC | Australia | 📅 2023-09-05 09:46 | 📅 2025-10-27 08:42 | |
| 203.202.234.0/10 |  RIPE | European Union | 📅 2024-12-30 23:33 | 📅 2025-10-27 08:37 | |
| 203.243.128.0/17 | APNIC | South Korea | 📅 - | 📅 2025-10-27 01:40 |
