203.253.96.0/20

AS1237 · KISTI

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Summary

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

WHOIS Details

inetnum:        203.253.96.0 - 203.253.111.255
netname:        KREONet
descr:          KISTI
admin-c:        IM702-AP
tech-c:         IM702-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T07:21:39Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
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:  2021-06-15T06:21:49Z
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:        203.253.96.0 - 203.253.111.255
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.
changed:        [email protected]
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]
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]
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.253.0.0/16

Range	ASN	Company	Num of IPs
203.253.192.0/19	AS18026	JEJU NATIONAL UNIVERSITY	8,192
203.253.64.0/20	AS9572	Hankuk University of Foreign Studies Computer Center	4,096
203.253.80.0/20	AS9572	Hankuk University of Foreign Studies Computer Center	4,096
203.253.32.0/20	AS4766	KONGJU NATIONAL UNIVERSITY	4,096
203.253.240.0/21	AS9637	Korea Basic Science Institute	2,048
203.253.128.0/22	AS4766	Korea Telecom	1,024
203.253.132.0/23	AS2385	KISTI	512
203.253.134.0/24	AS2385	KISTI	256
203.253.236.0/24	AS1237	KISTI	256
203.253.232.0/24	AS17576	National Research Foundation of Korea	256
203.253.135.0/24	AS1237	KISTI	256
203.253.237.0/24	AS9275	Korea Astronomy Observatory	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
203.253.111.70	AS1237 KISTI	`3.22ms` 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
184.73.110.20	AS14618 Amazon.com, Inc.	`0.60ms` from Ashburn, US
52.146.64.180	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
39.102.54.132	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.04ms` from Beijing, CN
84.224.171.68	AS213155 Yettel Hungary Ltd.	`14.21ms` from Budapest, HU
150.165.250.212	AS1916 Rede Nacional de Ensino e Pesquisa	`2.62ms` from Campina Grande, BR
105.216.64.212	AS16637 MTN SA	`4.39ms` from Cape Town, ZA
35.188.221.148	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
161.35.17.164	AS14061 DigitalOcean, LLC	`0.17ms` from Frankfurt am Main, DE
110.64.7.196	AS4538 China Education and Research Network Center	`1.35ms` from Guangzhou, CN
123.30.181.68	AS45899 VNPT Corp	`0.58ms` from Hanoi, VN
72.191.51.68	AS11427 Charter Communications Inc	`9.43ms` from Houston, US
108.255.74.100	AS7018 AT&T Enterprises, LLC	`1.76ms` from Houston, US
62.128.133.4	AS13768 Aptum Technologies	`1.64ms` from London, GB
109.151.107.180	AS2856 British Telecommunications PLC	`6.21ms` from London, GB
199.71.238.84	AS46746 NTT Managed Services Americas, LLC	`5.80ms` from Los Angeles, US
107.2.65.228	AS7922 Comcast Cable Communications, LLC	`5.67ms` from Minneapolis, US
151.249.163.244	AS42772 Unitary enterprise A1	`4.39ms` from Minsk, BY
109.188.88.212	AS25159 PJSC MegaFon	`1.93ms` from Moscow, RU
24.46.125.212	AS6128 Cablevision Systems Corp.	`2.02ms` from New York City, US
195.154.79.164	AS12876 SCALEWAY S.A.S.	`0.88ms` from Paris, FR
50.47.230.180	AS20055 Wholesail networks LLC	`1.07ms` from Seattle, US
61.85.36.100	AS4766 Korea Telecom	`4.76ms` from Seoul, KR
185.28.39.100	AS399471 Des Equity LLC	`1.41ms` from Amsterdam, NL
74.244.59.180	AS14593 Space Exploration Technologies Corporation	`12.73ms` from Atlanta, US
216.231.166.84	AS22561 CenturyLink Communications, LLC	`10.91ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 -f3 -m11 203.253.101.98

traceroute to 203.253.101.98 (203.253.101.98): 11 hops max, 52 byte packets

3 [] 193.239.117.61 9.625 ms

4 [AS24482] 124.6.32.66 200.723 ms

5 *

6 *

7 *

8 [AS1237] 134.75.5.118 265.805 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Copenhagen, DK

On January 9th 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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