203.230.160.0/19

AS45377 · Jeju Special Self Governing Provincial office of Education

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Summary

Country	South Korea
Domain	kt.com
ASN	AS45377
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.230.160.0 - 203.230.191.255
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
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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-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 203.230.0.0/16

Range	ASN	Company	Num of IPs
203.230.32.0/20	AS17595	Korea Institute of Nuclear Safety	4,096
203.230.80.0/20	AS4766	Korean Education Network	4,096
203.230.24.0/21	AS1237	Korea Institute of Science and Technology Information	2,048
203.230.64.0/21	AS1237	KISTI	2,048
203.230.192.0/22	AS18329	SANGMYUNG UNIVERSITY	1,024
203.230.196.0/23	AS18329	SANGMYUNG UNIVERSITY	512
203.230.212.0/23	AS18028	Gyeongsang National University	512
203.230.4.0/23	AS45363	Sun Moon University	512
203.230.16.0/23	AS1237	Korea Institute of Science and Technology Information	512
203.230.199.0/24	AS3786	Kkottongnae Hyundo University of Social Welfare	256
203.230.218.0/24	AS3786	Korea Soongsil Cyber University	256
203.230.132.0/24	AS4766	Appeals Commission for Education	256
203.230.219.0/24	AS4766	Chungkang College Of Cultural Industries	256
203.230.254.0/24	AS4766	Choonhae College	256
203.230.255.0/24	AS4766	Choonhae College	256
203.230.133.0/24	AS9691	Kyungsung University	256
203.230.208.0/24	AS10053	Yeonsung University	256
203.230.215.0/24	AS9691	Kyungsung University	256
203.230.209.0/24	AS10053	Yeonsung University	256
203.230.240.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.241.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.242.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.243.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.252.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.253.0/24	AS18023	Korea Maritime University(KMU)	256
203.230.214.0/24	AS18028	Gyeongsang National University	256
203.230.198.0/24	AS18329	SANGMYUNG UNIVERSITY	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
109.245.24.99	AS15958 CETINdoo-NET	`0.65ms` from Belgrade, RS
18.236.88.195	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
190.112.31.99	AS28111 Grupo Solunet SRL	`1.25ms` from Buenos Aires, AR
161.115.198.3	AS13994 Owensboro Municipal Utilities	`11.78ms` from Chicago, US
52.85.12.243	AS16509 Amazon.com, Inc.	`0.10ms` from Chicago, US
66.76.8.67	AS19108 Optimum	`2.29ms` from Dallas, US
217.156.232.227	AS3549 Level 3 Parent, LLC	`0.63ms` from London, GB
212.161.31.83	AS8220 COLT Technology Services Group Limited	`0.62ms` from London, GB
81.34.181.51	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.12ms` from Madrid, ES
14.2.144.147	AS4739 Internode Pty Ltd	`13.26ms` from Melbourne, AU
15.157.45.195	AS16509 Amazon.com, Inc.	`0.17ms` from Montreal, CA
74.15.203.115	AS577 Bell Canada	`3.93ms` from Montreal, CA
67.85.97.243	AS6128 Cablevision Systems Corp.	`5.59ms` from New York City, US
125.114.23.115	AS4134 CHINANET-BACKBONE	`5.87ms` from Ningbo, CN
91.44.112.195	AS3320 Deutsche Telekom AG	`5.87ms` from Nuernberg, DE
34.204.134.115	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
38.173.223.83	AS54600 PEG TECH INC	`0.65ms` from San Jose, US
192.192.120.3	AS1659 Taiwan Academic Network (TANet) Information Center	`3.00ms` from Taipei, TW
102.67.203.195	AS36924 GVA Cote d'Ivoire SAS	`14.61ms` from Accra, GH
75.190.179.243	AS11426 Charter Communications Inc	`5.20ms` from Charlotte, US
218.206.21.227	AS9808 China Mobile Communications Group Co., Ltd.	`8.63ms` from Chongqing, CN
63.96.90.3	AS63321 Rent-A-Center Inc.	`1.35ms` from Dallas, US
140.246.183.163	AS58519 Cloud Computing Corporation	`0.36ms` from Guiyang, CN
218.50.231.83	AS9318 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
118.183.134.227	AS4134 CHINANET-BACKBONE	`3.13ms` from Lanzhou, CN

Traceroute

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

traceroute -a -n -q1 -f7 -m14 203.230.182.146

traceroute to 203.230.182.146 (203.230.182.146): 14 hops max, 52 byte packets

7 [AS4766] 112.174.87.241 604.96 ms

8 [AS4766] 112.174.91.213 128.755 ms

9 [AS4766] 112.174.49.230 136.097 ms

10 [AS4766] 112.188.224.214 135.075 ms

11 [AS4766] 59.8.46.206 135.341 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On February 7th 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.

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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