203.250.192.0/18

AS1237 · KISTI

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Summary

Country	South Korea
Domain	kreonet.net
ASN	AS1237
Registry	APNIC
ID	KREONET

WHOIS Details

inetnum:        203.250.128.0 - 203.250.255.255
netname:        KREONet
descr:          KISTI
country:        KR
admin-c:        IM702-AP
tech-c:         IM702-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T07:48:08Z
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:        Daejeon Yuseong-gu Daehak-ro 245
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IM702-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2022-01-11T12:18:02Z
source:         APNIC

inetnum:        203.250.128.0 - 203.250.255.255
netname:        KREONet-KR
descr:          KISTI
country:        KR
admin-c:        IA18-KR
tech-c:         IM18-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:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IA18-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:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         noc@kreonet.net
nic-hdl:        IM18-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

Nearby Ranges

BGP prefixes that overlap with 203.250.0.0/16

Range	ASN	Company	Num of IPs
203.250.0.0/19	AS1237	KISTI	8,192
203.250.120.0/21	AS9708	Pukyong National University	2,048
203.250.160.0/21	AS1237	KISTI	2,048
203.250.188.0/22	AS9982	Pai Chai University	1,024
203.250.168.0/22	AS17595	Korea Institute of Nuclear Safety	1,024
203.250.148.0/23	AS9769	Sejong University	512
203.250.111.0/24	AS55589	Korea Institute of Industrial Technology	256
203.250.183.0/24	AS1237	KRISO	256
203.250.182.0/24	AS1237	KRISO	256

Hosted domains

There are 59 domain names hosted across 30 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.250.218.56	koar.kr	7
203.250.218.54	xn--vf4b29as5d3mo7c.com	7
203.250.218.77	kesli.com	6
203.250.198.114	jmrd.org	5
203.250.215.81	ndsl.ac.kr	5
203.250.218.61	jafeb.org	3
203.250.215.56	doi.or.kr	2
203.250.198.112	ksgee.or.kr	2
203.250.216.136	epops.kr	2
203.250.215.48	xn--2e0bz9u5mj.kr	2
203.250.198.116	e-star.or.kr	2
203.250.218.22	koreascience.or.kr	2
203.250.213.35	vlabon.re.kr	1
203.250.218.221	mailon.kr	1
203.250.198.135	ndsl.or.kr	1
203.250.214.112	smartk2c.re.kr	1
203.250.218.78	kosen.kr	1
203.250.218.86	starvalue.or.kr	1
203.250.203.101	ntis.go.kr	1
203.250.215.49	kisti.re.kr	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

559 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.250.215.99	AS1237 KISTI	`23.54ms` from Seoul, KR
203.250.213.61	AS1237 KISTI	`3.57ms` from Seoul, KR
203.250.218.56	AS1237 KISTI	`23.56ms` from Seoul, KR
203.250.224.10	AS1237 KISTI	`3.41ms` from Seoul, KR
203.250.197.31	AS1237 KISTI	`3.46ms` from Seoul, KR
203.250.203.160	AS1237 KISTI	`5.05ms` from Seoul, KR
203.250.241.30	AS1237 KISTI	`23.61ms` from Seoul, KR
203.250.202.124	AS1237 KISTI	`4.64ms` from Seoul, KR
203.250.252.102	AS1237 KISTI	`4.99ms` from Seoul, KR
203.250.240.249	AS1237 KISTI	`3.42ms` from Seoul, KR
203.250.237.121	AS1237 KISTI	`23.91ms` from Incheon, KR
203.250.198.22	AS1237 KISTI	`3.62ms` from Seoul, KR
203.250.207.55	AS1237 KISTI	`23.58ms` from Seoul, KR
203.250.214.46	AS1237 KISTI	`3.54ms` from Seoul, KR
203.250.248.41	AS1237 KISTI	`6.62ms` from Seoul, KR
203.250.217.165	AS1237 KISTI	`3.59ms` from Seoul, KR
203.250.196.12	AS1237 KISTI	`3.50ms` from Seoul, KR
203.250.200.1	AS1237 KISTI	`7.30ms` from Seoul, KR
203.250.233.81	AS1237 KISTI	`3.27ms` from Seoul, KR
203.250.216.165	AS1237 KISTI	`3.56ms` 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
105.106.91.226	AS36947 Telecom Algeria	`14.27ms` from Algiers, DZ
20.85.207.146	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
191.91.218.178	AS27831 Colombia Móvil	`14.22ms` from Bogota, CO
62.10.98.178	AS8070 Microsoft Corporation	`0.66ms` from Boydton, US
89.152.16.226	AS2860 NOS COMUNICACOES, S.A.	`7.21ms` from Braga, PT
102.129.186.226	AS62390 NexonHost Srl	`0.14ms` from Bucharest, RO
35.192.205.66	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
34.251.246.162	AS16509 Amazon.com, Inc.	`0.15ms` from Dublin, IE
91.18.162.242	AS3320 Deutsche Telekom AG	`2.61ms` from Frankfurt am Main, DE
124.112.51.146	AS4134 CHINANET-BACKBONE	`8.29ms` from Huai'an, CN
81.143.202.162	AS2856 British Telecommunications PLC	`3.35ms` from London, GB
208.181.137.2	AS852 TELUS Communications Inc.	`1.48ms` from Los Angeles, US
161.111.124.2	AS766 RedIRIS Autonomous System	`0.97ms` from Madrid, ES
216.145.65.2	AS22792 MOUNTAINET	`12.97ms` from Manassas, US
107.197.20.194	AS7018 AT&T Enterprises, LLC	`6.36ms` from Miami, US
72.184.233.194	AS33363 Charter Communications, Inc	`7.64ms` from Orlando, US
61.120.91.226	AS2516 KDDI CORPORATION	`10.52ms` from Osaka, JP
178.164.22.34	AS34087 NTE TELEKOM AS	`8.90ms` from Oslo, NO
71.223.43.146	AS209 CenturyLink Communications, LLC	`10.89ms` from Phoenix, US
47.44.255.2	AS20115 Charter Communications LLC	`7.38ms` from San Jose, US
220.90.8.210	AS4766 Korea Telecom	`3.24ms` from Seoul, KR
119.212.22.50	AS4766 Korea Telecom	`1.87ms` from Seoul, KR
85.30.33.130	AS29518 Bredband2 AB	`7.30ms` from Stockholm, SE
220.131.255.2	AS3462 Data Communication Business Group	`1.43ms` from Taipei, TW
52.190.3.178	AS8075 Microsoft Corporation	`0.50ms` from Ashburn, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 -m11 203.250.199.12

traceroute to 203.250.199.12 (203.250.199.12): 11 hops max, 52 byte packets

4 [AS17579] 134.75.103.113 219.81 ms

5 [AS1237] 134.75.8.30 222.797 ms

6 [AS1237] 203.250.174.131 224.759 ms

7 [AS1237] 203.250.174.129 225.643 ms

8 [AS1237] 203.250.174.131 225.671 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On March 13th 2026

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.

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