121.144.146.0/23

AS9870 · DONG-EUI UNIVERSITY

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	South Korea
Domain	kt.com
ASN	AS9870
Parent Range	121.128.0.0/11
Registry	KRNIC
ID	121.144.146.0-121.144.146.255

WHOIS Details

inetnum:            121.144.146.0 - 121.144.146.255
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 121.144.146.0/23

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

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
35.220.106.103	AS396982 Google LLC	`0.14ms` from Brussels, BE
211.92.61.215	AS4837 CHINA UNICOM China169 Backbone	`5.90ms` from Chongqing, CN
51.199.109.135	AS5607 Sky UK Limited	`1.35ms` from Dublin, IE
76.14.124.55	AS11404 Wave Broadband	`5.70ms` from Fremont, US
99.69.200.151	AS7018 AT&T Enterprises, LLC	`14.88ms` from Kansas City, US
122.162.2.23	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.00ms` from Kolkata, IN
178.139.131.231	AS12430 VODAFONE ESPANA S.A.U.	`14.91ms` from Madrid, ES
99.9.209.7	AS7018 AT&T Enterprises, LLC	`3.73ms` from San Jose, US
201.214.244.135	AS22047 VTR BANDA ANCHA S.A.	`12.32ms` from Santiago, CL
118.37.44.135	AS4766 Korea Telecom	`0.94ms` from Seoul, KR
153.144.64.103	AS4713 NTT DOCOMO BUSINESS,Inc.	`16.98ms` from Tokyo, JP
186.93.2.183	AS8048 CANTV Servicios, Venezuela	`10.15ms` from Willemstad, CW
86.181.98.39	AS2856 British Telecommunications PLC	`3.42ms` from London, GB
67.49.50.183	AS20001 Charter Communications Inc	`8.03ms` from Los Angeles, US
153.250.76.215	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.63ms` from Osaka, JP
3.230.245.71	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
43.134.100.7	AS132203 Tencent Building, Kejizhongyi Avenue	`0.64ms` from Singapore, SG
13.230.80.151	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP
102.157.166.39	AS37705 TOPNET	`2.32ms` from Tunis, TN
70.188.241.135	AS22773 Cox Communications Inc.	`19.94ms` from Atlanta, US
84.134.194.87	AS3320 Deutsche Telekom AG	`2.87ms` from Berlin, DE
96.109.240.119	AS7922 Comcast Cable Communications, LLC	`0.88ms` from Chicago, US
173.185.137.119	AS7029 Windstream Communications LLC	`4.68ms` from Dallas, US
27.77.103.247	AS7552 Viettel Group	`2.04ms` from Ho Chi Minh City, VN
207.233.55.39	AS2152 CENIC	`3.50ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f5 -m8 121.144.147.71

traceroute to 121.144.147.71 (121.144.147.71): 8 hops max, 52 byte packets

5 [] 212.68.52.69 1.266 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Istanbul, TR

On January 19th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales