121.144.140.0/23

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:             [email protected]
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.144.140.0/23

Range	ASN	Company	Num of IPs
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	AS17588	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	AS4766	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
150.136.198.199	AS31898 Oracle Corporation	`0.34ms` from Ashburn, US
44.236.164.199	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
197.56.174.71	AS8452 TE-AS	`2.51ms` from Cairo, EG
104.231.105.23	AS10796 Charter Communications Inc	`11.94ms` from Columbus, US
96.16.19.7	AS16625 Akamai Technologies, Inc.	`0.54ms` from Dallas, US
141.216.245.231	AS394769 University of Michigan - Flint	`2.39ms` from Detroit, US
86.138.201.183	AS2856 British Telecommunications PLC	`6.36ms` from Erith, GB
90.100.207.151	AS3215 Orange S.A.	`11.56ms` from Frankfurt am Main, DE
179.61.182.231	AS153656 OWGELS INTERNATIONAL CO., LIMITED	`1.11ms` from Hong Kong, HK
178.166.167.7	AS12389 PJSC Rostelecom	`1.05ms` from Krasnoyarsk, RU
185.15.110.23	AS47232 ISP Alliance a.s.	`4.07ms` from Prague, CZ
34.203.105.151	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
159.0.229.215	AS25019 Saudi Telecom Company JSC	`2.00ms` from Riyadh, SA
107.206.170.135	AS7018 AT&T Enterprises, LLC	`5.08ms` from San Jose, US
13.73.32.55	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
20.220.132.151	AS8075 Microsoft Corporation	`0.17ms` from Toronto, CA
123.120.55.215	AS4808 China Unicom Beijing Province Network	`3.24ms` from Beijing, CN
107.138.234.199	AS7018 AT&T Enterprises, LLC	`18.20ms` from Chicago, US
174.105.36.103	AS10796 Charter Communications Inc	`7.65ms` from Columbus, US
3.14.66.135	AS16509 Amazon.com, Inc.	`0.69ms` from Columbus, US
194.17.203.199	AS3301 Telia Company AB	`0.81ms` from Goeteborg, SE
2.22.195.39	AS16625 Akamai Technologies, Inc.	`0.09ms` from Johannesburg, ZA
79.17.46.231	AS3269 Telecom Italia S.p.A.	`5.91ms` from Milan, IT
79.227.154.23	AS3320 Deutsche Telekom AG	`8.40ms` from Nuernberg, DE
47.101.108.247	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.56ms` from Shanghai, CN

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 121.144.141.207

traceroute to 121.144.141.207 (121.144.141.207): 6 hops max, 52 byte packets

2 [AS9002] 87.245.239.24 0.226 ms

3 [AS9002] 87.245.232.102 6.566 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Riga, LV

On November 28th 2025

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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