121.144.144.0/22

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	121.144.144.0-121.144.144.255

WHOIS Details

inetnum:            121.144.144.0 - 121.144.144.255
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 121.144.144.0/22

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
43.224.222.22	AS133234 PLUSNET COMMUNICATION PVT. LTD.	`8.42ms` from Ahmedabad, IN
206.225.19.246	AS400480 Momentum Telecom, Inc.	`0.32ms` from Dallas, US
34.131.104.22	AS396982 Google LLC	`0.11ms` from Delhi, IN
50.158.6.182	AS22773 Cox Communications Inc.	`9.47ms` from Los Angeles, US
95.117.171.198	AS6805 Telefonica Germany GmbH & Co.OHG	`3.59ms` from Munich, DE
90.82.210.54	AS3215 Orange S.A.	`1.32ms` from Paris, FR
216.92.114.54	AS7859 pair Networks	`0.08ms` from Pittsburgh, US
71.216.152.182	AS209 CenturyLink Communications, LLC	`16.09ms` from Seattle, US
36.225.124.86	AS3462 Data Communication Business Group	`1.05ms` from Taipei, TW
71.136.85.214	AS55960 Beijing Guanghuan Xinwang Digital	`3.80ms` from Tianjin, CN
38.122.68.198	AS174 Cogent Communications, LLC	`0.18ms` from Toronto, CA
109.137.125.230	AS5432 Proximus NV	`2.15ms` from Brussels, BE
172.125.133.6	AS7018 AT&T Enterprises, LLC	`7.36ms` from Chicago, US
107.192.203.214	AS7018 AT&T Enterprises, LLC	`2.32ms` from Dallas, US
138.74.241.38	AS15108 Allo Communications LLC	`3.57ms` from Denver, US
84.158.103.6	AS3320 Deutsche Telekom AG	`2.86ms` from Duesseldorf, DE
87.246.107.166	AS12703 Pulsant (Scotland) Ltd	`0.37ms` from Edinburgh, GB
141.2.151.22	AS20633 Johann Wolfgang Goethe-Universitat Frankfurt am Main	`0.87ms` from Frankfurt am Main, DE
102.216.21.22	AS329050 Julius Berger Nigeria PLC	`1.14ms` from Lagos, NG
47.147.55.182	AS5650 Frontier Communications of America, Inc.	`2.16ms` from Los Angeles, US
88.5.134.214	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.45ms` from Madrid, ES
85.93.35.38	AS12389 PJSC Rostelecom	`15.94ms` from Moscow, RU
62.213.119.182	AS25227 JSC Avantel	`0.80ms` from Moscow, RU
122.29.141.214	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.07ms` from Osaka, JP
92.113.30.86	AS47583 Hostinger International Limited	`0.37ms` from Paris, 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 -m8 121.144.147.27

traceroute to 121.144.147.27 (121.144.147.27): 8 hops max, 52 byte packets

3 [AS3257] 89.149.128.174 176.765 ms

4 [AS3257] 76.74.48.138 984.518 ms

5 [AS4766] 112.174.89.21 768.316 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Madrid, ES

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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