203.236.78.0/24

AS9696 · Oscar Enterprise

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9696
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
77.174.87.168	AS1136 KPN B.V.	`0.93ms` from Amsterdam, NL
217.145.49.200	AS47292 Sentia Denmark A/S	`0.22ms` from Copenhagen, DK
41.149.158.168	AS37457 Telkom SA Ltd.	`4.62ms` from Durban, ZA
124.158.7.72	AS38732 CMC Telecom Infrastructure Company	`0.64ms` from Hanoi, VN
129.227.132.8	AS21859 Zenlayer Inc	`0.81ms` from Hong Kong, HK
103.120.170.248	AS63859 PT. Eka Mas Republik	`1.67ms` from Jakarta, ID
85.138.132.216	AS2860 NOS COMUNICACOES, S.A.	`7.13ms` from Lisbon, PT
184.185.154.8	AS22773 Cox Communications Inc.	`3.58ms` from Los Angeles, US
89.254.206.232	AS12389 PJSC Rostelecom	`15.94ms` from Moscow, RU
31.34.114.232	AS5410 Bouygues Telecom SA	`6.55ms` from Paris, FR
54.163.36.88	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
14.53.222.72	AS4766 Korea Telecom	`1.72ms` from Seoul, KR
78.21.47.200	AS6848 Telenet BV	`8.53ms` from Brussels, BE
47.108.16.200	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.08ms` from Chengdu, CN
64.218.88.136	AS7018 AT&T Enterprises, LLC	`8.02ms` from Chicago, US
87.193.137.24	AS20676 Plusnet GmbH	`18.72ms` from Duesseldorf, DE
110.12.82.152	AS9318 SK Broadband Co Ltd	`1.41ms` from Incheon, KR
38.242.224.72	AS51167 Contabo GmbH	`0.13ms` from Lauterbourg, FR
172.118.66.40	AS20001 Charter Communications Inc	`4.61ms` from Los Angeles, US
167.56.180.168	AS6057 Administracion Nacional de Telecomunicaciones	`1.87ms` from Montevideo, UY
201.76.196.8	AS22356 Durand do Brasil Ltda	`0.57ms` from New York City, US
180.54.91.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.71ms` from Osaka, JP
79.163.191.8	AS5617 Orange Polska Spolka Akcyjna	`3.03ms` from Poznan, PL
50.19.20.232	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
194.214.26.72	AS2200 Renater	`1.31ms` from Saint-Denis, FR

Traceroute

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

traceroute -a -n -q1 -f3 -m12 203.236.78.105

traceroute to 203.236.78.105 (203.236.78.105): 12 hops max, 52 byte packets

3 [AS3356] 4.68.72.198 30.578 ms

4 *

5 [AS4766] 112.174.91.117 160.974 ms

6 [AS4766] 112.174.47.170 170.464 ms

7 *

8 [AS4766] 218.145.88.238 169.653 ms

9 [AS9696] 203.236.71.12 182.444 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Casper, US

On January 30th 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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