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
90.129.94.71	AS1257 Tele2 Sverige AB	`0.46ms` from Goeteborg, SE
206.161.77.215	AS4760 HKT Limited	`6.79ms` from Hong Kong, HK
103.168.95.103	AS141856 A S C S C DIGITAL PRIVATE LIMITED	`2.60ms` from Kolkata, IN
101.141.71.151	AS17511 OPTAGE Inc.	`1.98ms` from Osaka, JP
187.3.45.199	AS28573 Claro NXT Telecomunicacoes Ltda	`6.27ms` from Osasco, BR
31.97.27.119	AS47583 Hostinger International Limited	`0.36ms` from Osasco, BR
176.186.70.87	AS5410 Bouygues Telecom SA	`2.42ms` from Paris, FR
73.235.234.87	AS7922 Comcast Cable Communications, LLC	`4.83ms` from Santa Clara, US
189.147.39.119	AS8151 UNINET	`3.91ms` from Santiago de Queretaro, MX
27.102.110.55	AS45996 DAOU TECHNOLOGY	`1.12ms` from Seoul, KR
13.210.44.87	AS16509 Amazon.com, Inc.	`0.13ms` from Sydney, AU
60.116.49.39	AS17676 SoftBank Corp.	`3.44ms` from Tokyo, JP
126.141.109.23	AS17676 SoftBank Corp.	`2.98ms` from Tokyo, JP
136.57.3.23	AS16591 Google Fiber Inc.	`5.51ms` from Atlanta, US
98.251.238.87	AS7922 Comcast Cable Communications, LLC	`19.18ms` from Dallas, US
20.52.138.199	AS8075 Microsoft Corporation	`0.28ms` from Frankfurt am Main, DE
176.71.96.71	AS1257 Tele2 Sverige AB	`0.47ms` from Goeteborg, SE
221.103.49.231	AS17676 SoftBank Corp.	`4.23ms` from Osaka, JP
131.129.32.87	AS4685 Asahi Net	`4.96ms` from Osaka, JP
73.30.97.39	AS7922 Comcast Cable Communications, LLC	`9.20ms` from Piscataway, US
100.26.203.215	AS14618 Amazon.com, Inc.	`0.38ms` from Reston, US
98.89.30.167	AS14618 Amazon.com, Inc.	`0.41ms` from Reston, US
73.221.224.151	AS7922 Comcast Cable Communications, LLC	`9.68ms` from Seattle, US
180.83.36.135	AS17858 LG POWERCOMM	`3.02ms` from Seoul, KR
175.204.21.199	AS4766 Korea Telecom	`4.36ms` from Seoul, KR

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 121.144.147.241

traceroute to 121.144.147.241 (121.144.147.241): 6 hops max, 52 byte packets

2 [AS58061] 38.180.36.1 0.29 ms

3 [AS200590] 188.94.153.128 1.003 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

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.

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