121.144.250.0/24

AS18023 · Korea Maritime and Ocean University

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Summary

Country	South Korea
Domain	kt.com
ASN	AS18023
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.144.250.0-121.144.250.255

WHOIS Details

inetnum:            121.144.250.0 - 121.144.250.255
descr:              Haeyangdaehakgyo
network-type:       CUSTOMER
address:            Dongsam2-Dong Yeongdo-Gu Busangwangyeok-Si
zip-code:           606082
created:            2021-04-16
admin:              GENERATED-KRNIC-IP-MANAGER-KORNETIP
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-KORNETIP
person:             IP Manager
name:               IP Manager
phone:              +82-2-500-6630
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.144.250.0/24

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS18333	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.144.0.0/16

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS38122	Korea Telecom	2,097,152
121.128.0.0/11	AS4766	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.128.0.0/11	AS18333	Korea Telecom	2,097,152
121.144.249.0/24	AS18023	Haeyangdaehakgyo	256
121.144.149.0/24	AS9870	Donguidaehakgyo	256
121.144.148.0/24	AS9870	Donguidaehakgyo	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

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

IP Address	ASN	Details
121.144.250.2	AS18023 Korea Maritime and Ocean University	`6.60ms` 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
120.15.177.72	AS4837 CHINA UNICOM China169 Backbone	`10.38ms` from Beijing, CN
60.93.64.152	AS17676 SoftBank Corp.	`3.57ms` from Osaka, JP
40.91.85.168	AS8075 Microsoft Corporation	`0.31ms` from Quincy, US
34.166.117.72	AS396982 Google LLC	`6.24ms` from Riyadh, SA
95.245.9.200	AS3269 Telecom Italia S.p.A.	`4.56ms` from Rome, IT
189.164.127.104	AS8151 UNINET	`5.73ms` from Santiago de Queretaro, MX
75.253.9.232	AS6167 Verizon Business	`8.47ms` from Seattle, US
58.126.188.152	AS9318 SK Broadband Co Ltd	`4.15ms` from Seoul, KR
221.130.195.8	AS9808 China Mobile Communications Group Co., Ltd.	`0.36ms` from Shanghai, CN
114.34.248.8	AS3462 Data Communication Business Group	`3.22ms` from Taipei, TW
210.151.50.248	AS4725 SoftBank Corp.	`2.11ms` from Tokyo, JP
154.254.66.40	AS36947 Telecom Algeria	`12.73ms` from Algiers, DZ
20.122.135.72	AS8075 Microsoft Corporation	`0.31ms` from Boydton, US
223.31.13.232	AS9583 Sify Limited	`6.47ms` from Chennai, IN
79.247.144.24	AS3320 Deutsche Telekom AG	`5.55ms` from Frankfurt am Main, DE
60.174.109.216	AS4134 CHINANET-BACKBONE	`10.64ms` from Huai'an, CN
129.169.108.248	AS786 Jisc Services Limited	`2.41ms` from London, GB
176.192.239.232	AS12714 PJSC MegaFon	`10.07ms` from Moscow, RU
88.120.97.184	AS12322 Free SAS	`8.72ms` from Paris, FR
82.120.149.168	AS3215 Orange S.A.	`11.68ms` from Paris, FR
87.110.224.248	AS12578 SIA Tet	`0.53ms` from Riga, LV
72.25.64.8	AS11414 Nvidia Corporation	`8.95ms` from Salt Lake City, US
203.56.193.72	AS7545 TPG Telecom Limited	`1.21ms` from Sydney, AU
94.212.87.136	AS33915 Vodafone Libertel B.V.	`4.27ms` from Amsterdam, NL
40.114.213.72	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 -f5 121.144.250.1

traceroute to 121.144.250.1 (121.144.250.1): 64 hops max, 52 byte packets

5 [AS3257] 67.199.141.33 0.438 ms

6 [AS3257] 89.149.131.10 372.49 ms

7 [AS3257] 213.254.227.14 371.229 ms

8 [AS4766] 112.174.87.77 371.988 ms

9 [AS4766] 112.174.86.61 370.996 ms

10 *

11 *

12 [AS18023] 121.144.250.1 290.144 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

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.

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