203.236.74.0/24

AS9490 · Oscar Enterprise

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9490
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        203.236.64.0 - 203.236.127.255
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:        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

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

Nearby Ranges

BGP prefixes that overlap with 203.236.0.0/16

Range	ASN	Company	Num of IPs
203.236.128.0/18	AS138195	SEJONG NETWORKS	16,384
203.236.128.0/18	AS23588	SEJONG NETWORKS	16,384
203.236.192.0/18	AS9286	KINX	16,384
203.236.128.0/18	AS9848	SEJONG NETWORKS	16,384
203.236.128.0/18	AS9973	SEJONG NETWORKS	16,384
203.236.0.0/19	AS9644	SK Telecom	8,192
203.236.32.0/21	AS9644	SK Telecom	2,048
203.236.188.0/22	AS23584	PUSAN CATV	1,024
203.236.40.0/22	AS9644	SK Telecom	1,024
203.236.135.0/24	AS9845	CJcablenet	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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
76.28.65.248	AS7922 Comcast Cable Communications, LLC	`9.45ms` from Boston, US
136.183.179.24	AS19933 Buffalo State College	`1.09ms` from Buffalo, US
84.190.204.104	AS3320 Deutsche Telekom AG	`2.28ms` from Frankfurt am Main, DE
119.13.76.184	AS136907 HUAWEI CLOUDS	`0.95ms` from Hong Kong, HK
122.45.159.136	AS17858 LG POWERCOMM	`1.60ms` from Incheon, KR
98.204.171.24	AS7922 Comcast Cable Communications, LLC	`8.66ms` from Manassas, US
99.115.36.72	AS7018 AT&T Enterprises, LLC	`4.25ms` from Miami, US
191.112.7.232	AS7418 TELEFÓNICA CHILE S.A.	`2.96ms` from Santiago, CL
8.153.60.216	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`6.12ms` from Shanghai, CN
119.99.131.8	AS4134 CHINANET-BACKBONE	`2.10ms` from Wuhan, CN
181.136.161.104	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`14.68ms` from Bogota, CO
80.135.100.72	AS3320 Deutsche Telekom AG	`4.17ms` from Duesseldorf, DE
119.188.237.168	AS4837 CHINA UNICOM China169 Backbone	`2.06ms` from Jinan, CN
87.2.122.216	AS3269 Telecom Italia S.p.A.	`3.95ms` from Milan, IT
73.88.142.24	AS7922 Comcast Cable Communications, LLC	`10.55ms` from Murfreesboro, US
204.235.106.152	AS26881 IPR International, LLC.	`3.31ms` from New York City, US
87.180.179.216	AS3320 Deutsche Telekom AG	`5.75ms` from Nuernberg, DE
180.147.186.24	AS17511 OPTAGE Inc.	`3.15ms` from Osaka, JP
45.90.224.8	AS60032 Coriolis Telecom SAS	`2.37ms` from Paris, FR
191.34.54.8	AS18881 TELEFÔNICA BRASIL S.A	`0.65ms` from Rio de Janeiro, BR
52.53.123.184	AS16509 Amazon.com, Inc.	`0.16ms` from San Jose, US
32.211.5.24	AS46690 Southern New England Telephone Company and SNET America, Inc.	`11.41ms` from Ashburn, US
84.255.244.24	AS34779 T-2, d.o.o.	`1.29ms` from Ljubljana, SI
99.86.155.152	AS16509 Amazon.com, Inc.	`0.21ms` from Milan, IT
79.0.40.8	AS3269 Telecom Italia S.p.A.	`4.04ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f2 -m6 203.236.74.207

traceroute to 203.236.74.207 (203.236.74.207): 6 hops max, 52 byte packets

2 [AS53340] 192.228.109.93 758.993 ms

3 [AS53340] 192.228.109.214 0.779 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Las Vegas, US

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.

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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