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: [email protected] abuse-mailbox: [email protected] admin-c: IM574-AP tech-c: IM574-AP auth: # Filtered remarks: [email protected] 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: [email protected] 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: [email protected] nic-hdl: IA9-KR mnt-by: MNT-KRNIC-AP changed: [email protected] 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: [email protected] nic-hdl: IM9-KR mnt-by: MNT-KRNIC-AP changed: [email protected] 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 |
|---|---|---|---|
| 203.251.7.0/24 | AS4766 | Hangukcheoldosiseolgongdan | 256 |
| 203.251.77.0/24 | AS38124 | Korea Telecom | 256 |
| 203.251.112.0/24 | AS4766 | Busanjangsindaehakgyo | 256 |
Nearby Ranges
BGP prefixes that overlap with 203.251.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 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 |
| 203.251.192.0/18 | AS9848 | 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 |
| 203.251.77.0/24 | AS38124 | Korea Telecom | 256 |
| 203.251.251.0/24 | AS9980 | Hyundai Information Technology Co. Ltd. | 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 460 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 |
|---|---|---|
| 203.251.80.85 | k-metal.org | 137 |
| 203.251.81.155 | jymotonics.co.kr | 67 |
| 203.251.81.76 | ysomija.kr | 35 |
| 203.251.81.78 | xn--950b43dh5volb.kr | 32 |
| 203.251.81.11 | leebongju.com | 20 |
| 203.251.80.131 | kbsrd.or.kr | 13 |
| 203.251.81.79 | viablevision.or.kr | 13 |
| 203.251.109.225 | mogyefund.co.kr | 12 |
| 203.251.81.77 | u-tas.com | 8 |
| 203.251.57.109 | qxo.kr | 8 |
| 203.251.109.230 | cdws.or.kr | 7 |
| 203.251.83.210 | kb-one.co.kr | 5 |
| 203.251.81.82 | ycherbs.com | 5 |
| 203.251.81.7 | edualgo20.com | 5 |
| 203.251.109.231 | oceang.kr | 5 |
| 203.251.57.106 | amp.farm | 4 |
| 203.251.114.66 | hompi.info | 4 |
| 203.251.80.15 | totalleisureone.co.kr | 4 |
| 203.251.81.216 | dosanim.net | 4 |
| 203.251.81.15 | printvill.net | 3 |
Hosted domains API
Pingable IPs
11,624 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.251.100.254 |
6.28ms from Seoul,
KR
|
|
| 203.251.74.222 |
4.68ms from Seoul,
KR
|
|
| 203.251.47.118 |
4.54ms from Seoul,
KR
|
|
| 203.251.96.18 |
5.82ms from Seoul,
KR
|
|
| 203.251.51.70 |
6.39ms from Seoul,
KR
|
|
| 203.251.113.13 |
6.77ms from Seoul,
KR
|
|
| 203.251.50.17 |
5.11ms from Seoul,
KR
|
|
| 203.251.24.116 |
4.16ms from Seoul,
KR
|
|
| 203.251.118.136 |
6.47ms from Seoul,
KR
|
|
| 203.251.33.100 |
3.10ms from Seoul,
KR
|
|
| 203.251.110.230 |
4.35ms from Seoul,
KR
|
|
| 203.251.54.97 |
5.39ms from Seoul,
KR
|
|
| 203.251.64.147 |
5.94ms from Seoul,
KR
|
|
| 203.251.81.148 |
6.62ms from Seoul,
KR
|
|
| 203.251.114.190 |
6.42ms from Seoul,
KR
|
|
| 203.251.103.1 |
6.72ms from Seoul,
KR
|
|
| 203.251.4.225 |
3.00ms from Seoul,
KR
|
|
| 203.251.63.62 |
5.24ms from Seoul,
KR
|
|
| 203.251.34.29 |
3.04ms from Seoul,
KR
|
|
| 203.251.14.171 |
10.24ms from Seoul,
KR
|
|
| 203.251.73.254 |
4.45ms from Seoul,
KR
|
|
| 203.251.106.193 |
6.65ms from Seoul,
KR
|
|
| 203.251.68.46 |
5.01ms from Seoul,
KR
|
|
| 203.251.44.84 |
4.23ms from Seoul,
KR
|
|
| 203.251.35.222 |
3.62ms 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 |
|---|---|---|
| 217.104.89.1 |
4.95ms from Amsterdam,
NL
|
|
| 24.216.60.81 |
5.28ms from Atlanta,
US
|
|
| 69.61.34.97 |
0.24ms from Atlanta,
US
|
|
| 36.129.80.1 |
19.61ms from Beijing,
CN
|
|
| 92.82.221.1 |
11.52ms from Bucharest,
RO
|
|
| 64.237.119.81 |
0.53ms from Chicago,
US
|
|
| 172.99.176.129 |
8.60ms from Chicago,
US
|
|
| 98.226.101.241 |
9.55ms from Chicago,
US
|
|
| 82.3.180.1 |
2.40ms from Erith,
GB
|
|
| 217.216.167.1 |
0.48ms from Frankfurt am Main,
DE
|
|
| 204.141.85.1 |
0.43ms from Frankfurt am Main,
DE
|
|
| 2.200.128.1 |
5.77ms from Frankfurt am Main,
DE
|
|
| 183.238.63.177 |
4.24ms from Guangzhou,
CN
|
|
| 190.95.185.81 |
1.41ms from Guayaquil,
EC
|
|
| 183.129.38.1 |
4.34ms from Hangzhou,
CN
|
|
| 1.55.244.241 |
0.51ms from Hanoi,
VN
|
|
| 72.234.154.1 |
0.83ms from Honolulu,
US
|
|
| 114.232.29.1 |
9.15ms from Huai'an,
CN
|
|
| 125.167.148.1 |
6.64ms from Jakarta,
ID
|
|
| 112.9.64.1 |
6.51ms from Jinan,
CN
|
|
| 122.129.77.193 |
17.49ms from Karachi,
PK
|
|
| 60.164.131.1 |
4.58ms from Lanzhou,
CN
|
|
| 209.21.78.33 |
0.24ms from Las Vegas,
US
|
|
| 190.81.58.97 |
0.76ms from Lima,
PE
|
|
| 194.72.218.97 |
4.04ms from London,
GB
|
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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