203.237.221.0/24
AS9318 · SK Broadband Co Ltd
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| Country |
South Korea
|
| Domain | kren.kr |
| ASN | AS9318 |
| Parent Range | 203.237.128.0/17 |
| Registry | APNIC |
| ID | KREN |
WHOIS Details
inetnum: 203.237.128.0 - 203.237.255.255 netname: KREN descr: Korean Education Network admin-c: IM70-AP tech-c: IM70-AP country: KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR last-modified: 2017-02-02T04:55:27Z 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: 57 Daehak-ro, Jongno-gu, Seoul country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IM70-AP mnt-by: MNT-KRNIC-AP last-modified: 2025-11-17T00:10:02Z source: APNIC inetnum: 203.237.128.0 - 203.237.255.255 netname: KREN-KR descr: Korean Education Network country: KR admin-c: IA142-KR tech-c: IM142-KR status: ALLOCATED PORTABLE mnt-by: MNT-KRNIC-AP mnt-irt: IRT-KRNIC-KR 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: 57 Daehak-ro, Jongno-gu, Seoul address: 1 country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IA142-KR mnt-by: MNT-KRNIC-AP 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: 57 Daehak-ro, Jongno-gu, Seoul address: 1 country: KR phone: +82-2-882-5363 e-mail: kindman@kren.kr nic-hdl: IM142-KR mnt-by: MNT-KRNIC-AP 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 contain 203.237.221.0/24
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.237.128.0/17 | AS17614 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS4766 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18026 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS23983 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18031 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS3786 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS38694 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS9318 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18319 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18329 | Korean Education Network | 32,768 |
Nearby Ranges
BGP prefixes that overlap with 203.237.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.237.128.0/17 | AS17614 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18026 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18031 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18319 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS18329 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS23983 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS3786 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS38694 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS4766 | Korean Education Network | 32,768 |
| 203.237.128.0/17 | AS9318 | Korean Education Network | 32,768 |
| 203.237.96.0/19 | AS9754 | Korean Education Network | 8,192 |
| 203.237.64.0/19 | AS9778 | KISTI | 8,192 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
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 |
|---|---|---|
| 20.21.245.184 |
0.28ms from Az Za`ayin,
QA
|
|
| 182.43.47.88 |
0.45ms from Guiyang,
CN
|
|
| 124.88.45.8 |
14.11ms from Hami,
CN
|
|
| 71.226.195.88 |
5.39ms from New York City,
US
|
|
| 217.81.74.248 |
5.59ms from Nuernberg,
DE
|
|
| 179.104.219.8 |
6.18ms from Osasco,
BR
|
|
| 34.153.43.120 |
0.56ms from Santiago de Queretaro,
MX
|
|
| 218.151.95.136 |
4.40ms from Seoul,
KR
|
|
| 114.205.62.104 |
1.91ms from Seoul,
KR
|
|
| 194.181.240.120 |
8.87ms from Warsaw,
PL
|
|
| 58.250.159.248 |
5.28ms from Guangzhou,
CN
|
|
| 37.14.74.40 |
9.27ms from Madrid,
ES
|
|
| 95.236.240.24 |
4.92ms from Milan,
IT
|
|
| 82.65.46.152 |
1.85ms from Paris,
FR
|
|
| 122.165.37.216 |
10.50ms from Saint Thomas Mount,
IN
|
|
| 112.156.45.152 |
2.14ms from Seoul,
KR
|
|
| 140.32.23.200 |
0.52ms from Atlanta,
US
|
|
| 35.236.134.120 |
0.12ms from Chang-hua,
TW
|
|
| 104.230.194.72 |
7.16ms from Columbus,
US
|
|
| 80.146.109.40 |
3.06ms from Duesseldorf,
DE
|
|
| 84.153.157.136 |
3.37ms from Hamburg,
DE
|
|
| 148.71.165.216 |
7.08ms from Lisbon,
PT
|
|
| 45.148.193.24 |
13.65ms from Milan,
IT
|
|
| 37.230.207.216 |
0.51ms from Saint Petersburg,
RU
|
|
| 121.169.57.168 |
2.87ms from Seoul,
KR
|
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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