121.144.140.0/22

AS9870 · DONG-EUI UNIVERSITY

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Summary

Country	South Korea
Domain	kt.com
ASN	AS9870
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.144.140.0-121.144.140.255

WHOIS Details

inetnum:            121.144.140.0 - 121.144.140.255
descr:              Donguidaehakgyo
network-type:       CUSTOMER
address:            Gaya1-Dong Busanjin-Gu Busangwangyeok-Si
zip-code:           614-011
created:            2015-03-17
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 121.144.140.0/22

Range	ASN	Company	Num of IPs
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	AS17588	Korea Telecom	2,097,152
121.128.0.0/11	AS9856	Korea Telecom	2,097,152
121.128.0.0/11	AS9647	Korea Telecom	2,097,152
121.128.0.0/11	AS18333	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
121.144.250.0/24	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

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
54.203.205.230	AS16509 Amazon.com, Inc.	`0.23ms` from Boardman, US
178.164.171.54	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`0.89ms` from Budapest, HU
72.241.9.150	AS13490 Buckeye Cablevision, Inc.	`8.66ms` from Detroit, US
45.60.153.134	AS19551 Incapsula Inc	`0.10ms` from Johannesburg, ZA
4.234.202.182	AS8075 Microsoft Corporation	`0.25ms` from London, GB
47.202.229.134	AS5650 Frontier Communications of America, Inc.	`5.52ms` from Miami, US
62.16.196.38	AS2119 Telenor Norge AS	`11.10ms` from Oslo, NO
87.70.237.198	AS12400 Partner Communications Ltd.	`2.28ms` from Rosh Ha‘Ayin, IL
51.146.77.198	AS215935 Alphinity labs L.L.C-FZ	`0.09ms` from Sydney, AU
36.232.47.22	AS3462 Data Communication Business Group	`2.60ms` from Taichung, TW
1.175.235.6	AS3462 Data Communication Business Group	`4.30ms` from Taichung, TW
120.75.58.214	AS2527 Sony Network Communications Inc.	`16.80ms` from Tokyo, JP
66.119.160.182	AS20161 TeraGo Networks Inc.	`0.92ms` from Vancouver, CA
220.181.65.6	AS23724 IDC, China Telecommunications Corporation	`5.95ms` from Beijing, CN
190.112.19.246	AS28111 Grupo Solunet SRL	`1.36ms` from Buenos Aires, AR
176.95.196.70	AS3209 Vodafone GmbH	`3.83ms` from Duesseldorf, DE
75.7.141.134	AS7018 AT&T Enterprises, LLC	`3.09ms` from Durham, US
161.156.198.102	AS36351 IBM Cloud	`1.51ms` from London, GB
187.60.174.86	AS28156 Linhares Serviços Online LTDA EPP	`15.66ms` from Muriae, BR
37.194.137.134	AS31200 Novotelecom Ltd	`1.19ms` from Novosibirsk, RU
60.134.83.150	AS17676 SoftBank Corp.	`3.62ms` from Osaka, JP
185.184.244.134	AS202940 ITC NG ltd	`4.29ms` from Tel Aviv, IL
111.48.115.38	AS9808 China Mobile Communications Group Co., Ltd.	`3.28ms` from Wuhan, CN
219.142.194.102	AS4847 China Networks Inter-Exchange	`4.27ms` from Beijing, CN
39.156.160.182	AS9808 China Mobile Communications Group Co., Ltd.	`2.19ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -m5 121.144.142.197

traceroute to 121.144.142.197 (121.144.142.197): 5 hops max, 52 byte packets

1 [AS15169] 108.170.241.37 38.279 ms

2 [AS15169] 142.251.199.66 1.493 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On April 13th 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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