203.251.0.0/17
AS4766 · Korea Telecom
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| Country |
South Korea
|
| Domain | kt.com |
| ASN | AS4766 |
| Registry | APNIC |
| ID | KORNET |
WHOIS Details
inetnum: 203.251.0.0 - 203.251.127.255 netname: KORNET descr: Korea Telecom country: KR admin-c: IM667-AP tech-c: IM667-AP status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR last-modified: 2025-11-03T08:14:06Z source: APNIC irt: IRT-KRNIC-KR address: 9, Jinheung-gil, Naju-si, Jeollanam-do e-mail: irt@nic.or.kr abuse-mailbox: irt@nic.or.kr admin-c: IM574-AP tech-c: IM574-AP auth: # Filtered remarks: irt@nic.or.kr was validated on 2020-04-09 mnt-by: MNT-KRNIC-AP last-modified: 2025-09-04T01:00:01Z source: APNIC person: IP Manager address: Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90 country: KR phone: +82-2-500-6630 e-mail: kornet_ip@kt.com nic-hdl: IM667-AP mnt-by: MNT-KRNIC-AP last-modified: 2017-03-28T06:37:04Z source: APNIC inetnum: 203.251.0.0 - 203.251.127.255 netname: KORNET-KR descr: Korea Telecom country: KR admin-c: IA9-KR tech-c: IM9-KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC person: IP Manager address: Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90 address: KT Head Office country: KR phone: +82-2-500-6630 e-mail: kornet_ip@kt.com nic-hdl: IA9-KR mnt-by: MNT-KRNIC-AP changed: hostmaster@nic.or.kr 20240912 remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC person: IP Manager address: Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90 address: KT Head Office country: KR phone: +82-2-500-6630 e-mail: kornet_ip@kt.com nic-hdl: IM9-KR mnt-by: MNT-KRNIC-AP changed: hostmaster@nic.or.kr 20240912 remarks: This information has been partially mirrored by APNIC from remarks: KRNIC. To obtain more specific information, please use the remarks: KRNIC whois server at whois.kisa.or.kr. source: KRNIC
Overlapping Ranges
BGP prefixes that are contained by 203.251.0.0/17
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.251.112.0/24 | AS4766 | Busanjangsindaehakgyo | 256 |
| 203.251.7.0/24 | AS4766 | Hangukcheoldosiseolgongdan | 256 |
| 203.251.77.0/24 | AS38124 | Korea Telecom | 256 |
Nearby Ranges
BGP prefixes that overlap with 203.251.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.251.192.0/18 | AS9848 | SEJONG NETWORKS | 16,384 |
| 203.251.192.0/18 | AS4670 | SEJONG NETWORKS | 16,384 |
| 203.251.128.0/18 | AS4766 | Korea Telecom | 16,384 |
| 203.251.192.0/18 | AS4664 | SEJONG NETWORKS | 16,384 |
| 203.251.205.0/24 | AS4670 | SEJONG NETWORKS | 256 |
| 203.251.112.0/24 | AS4766 | Busanjangsindaehakgyo | 256 |
| 203.251.135.0/24 | AS4766 | Korea Telecom | 256 |
| 203.251.136.0/24 | AS4766 | Korea Telecom | 256 |
| 203.251.137.0/24 | AS4766 | Korea Telecom | 256 |
| 203.251.7.0/24 | AS4766 | Hangukcheoldosiseolgongdan | 256 |
| 203.251.207.0/24 | AS7562 | Hyundai Department | 256 |
| 203.251.237.0/24 | AS7562 | Hyundai Department | 256 |
| 203.251.246.0/24 | AS9848 | SEJONG NETWORKS | 256 |
| 203.251.249.0/24 | AS9848 | SEJONG NETWORKS | 256 |
| 203.251.250.0/24 | AS9848 | SEJONG NETWORKS | 256 |
| 203.251.210.0/24 | AS9980 | Hyundai Information Technology Co. Ltd. | 256 |
| 203.251.251.0/24 | AS9980 | Hyundai Information Technology Co. Ltd. | 256 |
| 203.251.77.0/24 | AS38124 | Korea Telecom | 256 |
| 203.251.152.0/24 | AS45399 | Hanjinjeongbotongsin(ju) | 256 |
| 203.251.154.0/24 | AS45399 | Hanjinjeongbotongsin(ju) | 256 |
| 203.251.201.0/24 | AS4670 | SEJONG NETWORKS | 256 |
| 203.251.202.0/24 | AS4670 | SEJONG NETWORKS | 256 |
Hosted domains
There are 458 domain names hosted across 68 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 203.251.109.225 | 0537907000.com | 12 |
| 203.251.57.109 | saemul.or.kr | 8 |
| 203.251.109.230 | eco-unmunsan.kr | 5 |
| 203.251.109.231 | oceang.kr | 5 |
| 203.251.83.210 | kbone.co.kr | 5 |
| 203.251.57.106 | amlease.co.kr | 4 |
| 203.251.114.66 | jdcsoft.co.kr | 4 |
| 203.251.60.232 | kjbank.co.kr | 3 |
| 203.251.73.18 | xn--j7q32d91g3ur.com | 3 |
| 203.251.109.226 | inply.net | 3 |
| 203.251.114.67 | dhgroove.com | 3 |
| 203.251.73.6 | xn--ob0bp8ivsaf07c.com | 3 |
| 203.251.29.52 | changoo.site | 2 |
| 203.251.21.9 | hanonsystems.com | 2 |
| 203.251.72.50 | jejo.info | 2 |
| 203.251.109.196 | singgreen.kr | 2 |
| 203.251.73.252 | coddi.com | 2 |
| 203.251.57.107 | soriview.or.kr | 2 |
| 203.251.24.15 | mirae.com | 2 |
| 203.251.79.177 | 3star.kr | 1 |
Hosted domains API
Pingable IPs
11,611 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.251.94.58 |
6.44ms from Incheon,
KR
|
|
| 203.251.29.43 |
3.31ms from Seoul,
KR
|
|
| 203.251.124.236 |
8.18ms from Seoul,
KR
|
|
| 203.251.32.48 |
3.11ms from Seoul,
KR
|
|
| 203.251.116.71 |
6.73ms from Seoul,
KR
|
|
| 203.251.4.225 |
3.35ms from Seoul,
KR
|
|
| 203.251.81.3 |
6.82ms from Seoul,
KR
|
|
| 203.251.1.166 |
3.85ms from Seoul,
KR
|
|
| 203.251.44.84 |
4.24ms from Seoul,
KR
|
|
| 203.251.100.254 |
6.41ms from Seoul,
KR
|
|
| 203.251.45.10 |
4.02ms from Seoul,
KR
|
|
| 203.251.73.254 |
4.43ms from Seoul,
KR
|
|
| 203.251.120.150 |
7.20ms from Seoul,
KR
|
|
| 203.251.121.142 |
6.70ms from Seoul,
KR
|
|
| 203.251.5.252 |
2.57ms from Seoul,
KR
|
|
| 203.251.19.1 |
3.51ms from Seoul,
KR
|
|
| 203.251.58.144 |
4.97ms from Seoul,
KR
|
|
| 203.251.79.154 |
4.30ms from Seoul,
KR
|
|
| 203.251.36.206 |
3.34ms from Seoul,
KR
|
|
| 203.251.3.6 |
3.47ms from Seoul,
KR
|
|
| 203.251.39.66 |
3.37ms from Seoul,
KR
|
|
| 203.251.18.188 |
3.10ms from Seoul,
KR
|
|
| 203.251.118.5 |
6.35ms from Seoul,
KR
|
|
| 203.251.115.254 |
6.47ms from Seoul,
KR
|
|
| 203.251.91.121 |
5.22ms from Seoul,
KR
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 86.97.222.1 |
5.38ms from Al Fujairah City,
AE
|
|
| 217.62.216.1 |
4.21ms from Amsterdam,
NL
|
|
| 24.132.119.1 |
3.39ms from Amsterdam,
NL
|
|
| 84.106.240.1 |
5.71ms from Amsterdam,
NL
|
|
| 64.47.204.161 |
0.49ms from Ashburn,
US
|
|
| 72.83.60.1 |
1.45ms from Ashburn,
US
|
|
| 96.115.136.209 |
0.74ms from Ashburn,
US
|
|
| 24.236.96.145 |
4.09ms from Atlanta,
US
|
|
| 140.248.239.49 |
0.17ms from Atlanta,
US
|
|
| 36.64.79.97 |
7.60ms from Batam,
ID
|
|
| 223.72.182.49 |
7.01ms from Beijing,
CN
|
|
| 190.13.83.145 |
5.13ms from Bogotá,
CO
|
|
| 204.199.2.161 |
0.25ms from Buenos Aires,
AR
|
|
| 181.228.141.1 |
14.20ms from Buenos Aires,
AR
|
|
| 108.159.18.241 |
0.36ms from Chennai,
IN
|
|
| 75.133.27.1 |
9.75ms from Chicago,
US
|
|
| 12.167.247.65 |
11.77ms from Chicago,
US
|
|
| 99.99.242.1 |
9.77ms from Chicago,
US
|
|
| 14.111.230.1 |
1.23ms from Chongqing,
CN
|
|
| 148.139.183.81 |
5.21ms from Dallas,
US
|
|
| 68.235.167.1 |
7.68ms from Dallas,
US
|
|
| 147.243.71.225 |
0.36ms from Duesseldorf,
DE
|
|
| 67.71.187.1 |
8.25ms from Edmonton,
CA
|
|
| 217.216.167.1 |
0.51ms from Frankfurt am Main,
DE
|
|
| 59.61.160.1 |
10.51ms from Fuzhou,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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