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:         [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:        Daejeon Yuseong-gu Daehak-ro 245
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
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:         [email protected]
nic-hdl:        IA18-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:        Daejeon Yuseong-gu Daehak-ro 245
address:        KISTI
country:        KR
phone:          +82-42-869-0707
e-mail:         [email protected]
nic-hdl:        IM18-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

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
203.250.218.54	xn--vf4b29as5d3mo7c.com	7
203.250.218.56	koar.kr	7
203.250.218.77	kesli.kr	6
203.250.198.114	jksimd.or.kr	5
203.250.215.81	ndsl.kr	5
203.250.218.61	jafeb.org	3
203.250.216.136	epops.kr	2
203.250.218.22	koreascience.or.kr	2
203.250.198.112	iksfc.or.kr	2
203.250.215.56	doi.or.kr	2
203.250.215.48	xn--2e0bz9u5mj.kr	2
203.250.198.116	kpubs.org	2
203.250.214.112	smartk2c.re.kr	1
203.250.218.86	starvalue.or.kr	1
203.250.218.76	nktech.net	1
203.250.233.81	nationalquantum.kr	1
203.250.213.61	ickm.re.kr	1
203.250.213.32	eliahdb.org	1
203.250.216.95	smartk2c.or.kr	1
203.250.218.87	astinet.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

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

IP Address	ASN	Details
203.250.207.16	AS1237 KISTI	`23.43ms` from Seoul, KR
203.250.214.61	AS1237 KISTI	`3.15ms` from Seoul, KR
203.250.233.81	AS1237 KISTI	`2.87ms` from Seoul, KR
203.250.202.124	AS1237 KISTI	`4.77ms` from Seoul, KR
203.250.224.10	AS1237 KISTI	`3.25ms` from Seoul, KR
203.250.248.74	AS1237 KISTI	`6.26ms` from Seoul, KR
203.250.213.61	AS1237 KISTI	`3.12ms` from Seoul, KR
203.250.200.1	AS1237 KISTI	`6.57ms` from Seoul, KR
203.250.240.153	AS1237 KISTI	`3.08ms` from Seoul, KR
203.250.241.40	AS1237 KISTI	`23.18ms` from Seoul, KR
203.250.215.77	AS1237 KISTI	`23.14ms` from Seoul, KR
203.250.203.160	AS1237 KISTI	`4.37ms` from Seoul, KR
203.250.218.57	AS1237 KISTI	`23.18ms` from Seoul, KR
203.250.237.121	AS1237 KISTI	`23.75ms` from Seoul, KR
203.250.197.12	AS1237 KISTI	`3.09ms` from Seoul, KR
203.250.216.149	AS1237 KISTI	`3.21ms` from Seoul, KR
203.250.198.22	AS1237 KISTI	`3.19ms` from Seoul, KR
203.250.217.149	AS1237 KISTI	`3.16ms` from Seoul, KR
203.250.196.12	AS1237 KISTI	`3.10ms` 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
62.131.216.114	AS1136 KPN B.V.	`1.01ms` from Amsterdam, NL
159.253.0.66	AS206281 Stichting DIGI NL	`1.18ms` from Amsterdam, NL
120.14.174.50	AS4837 CHINA UNICOM China169 Backbone	`10.03ms` from Beijing, CN
178.148.94.178	AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.	`5.38ms` from Belgrade, RS
59.144.137.18	AS9498 BHARTI Airtel Ltd.	`0.64ms` from Bengaluru, IN
50.245.3.130	AS7922 Comcast Cable Communications, LLC	`7.48ms` from Boston, US
3.145.14.66	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
51.138.179.210	AS8075 Microsoft Corporation	`0.14ms` from Dublin, IE
20.166.18.114	AS8075 Microsoft Corporation	`0.16ms` from Dublin, IE
62.143.113.50	AS3209 Vodafone GmbH	`10.33ms` from Frankfurt am Main, DE
84.34.248.162	AS1759 Telia Finland Oyj	`11.30ms` from Helsinki, FI
103.152.247.66	AS152475 BGPNET PTE. LTD.	`0.85ms` from Hong Kong, HK
58.177.232.226	AS9269 Hong Kong Broadband Network Ltd.	`0.91ms` from Hong Kong, HK
108.80.100.210	AS7018 AT&T Enterprises, LLC	`3.37ms` from Houston, US
24.51.87.226	AS15146 Cable Bahamas	`3.16ms` from Miami, US
12.86.255.50	AS7018 AT&T Enterprises, LLC	`1.49ms` from Miami, US
188.209.95.66	AS31638 Lepida S.c.p.A.	`3.88ms` from Milan, IT
95.181.197.50	AS49063 Data Storage Center JSC	`1.35ms` from Moscow, RU
118.105.59.146	AS18126 Chubu Telecommunications Company, Inc.	`9.75ms` from Osaka, JP
191.30.14.98	AS18881 TELEFÔNICA BRASIL S.A	`5.91ms` from Osasco, BR
62.145.187.34	AS13170 Kaisanet Oy	`2.79ms` from Oulu, FI
178.72.253.210	AS41046 O2 Czech Republic, a.s.	`5.54ms` from Prague, CZ
179.215.23.226	AS28573 Claro NXT Telecomunicacoes Ltda	`10.86ms` from Rio de Janeiro, BR
189.201.161.242	AS28438 IP Matrix, S.A. de C.V.	`6.71ms` from Santiago de Queretaro, MX
78.154.166.130	AS35320 Eurotranstelecom Ltd	`0.29ms` from Warsaw, PL

Traceroute

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

traceroute -a -n -q1 -m9 203.250.223.88

traceroute to 203.250.223.88 (203.250.223.88): 9 hops max, 52 byte packets

1 [AS15169] 64.233.174.23 171.923 ms

2 [AS17579] 134.75.108.97 197.843 ms

3 *

4 [AS17579] 134.75.103.121 194.383 ms

5 [AS1237] 134.75.8.74 200.031 ms

6 [AS1237] 134.75.5.194 195.668 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On December 28th 2025

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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