121.144.148.0/23

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	121.144.148.0-121.144.148.255

WHOIS Details

inetnum:            121.144.148.0 - 121.144.148.255
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 121.144.148.0/23

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

BGP prefixes that are contained by 121.144.148.0/23

Range	ASN	Company	Num of IPs
121.144.148.0/24	AS9870	Donguidaehakgyo	256
121.144.149.0/24	AS9870	Donguidaehakgyo	256

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

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
45.179.10.7	AS269058 MG NET IPATINGA LTDA	`12.76ms` from Belo Horizonte, BR
217.13.196.215	AS15657 Speedbone Internet & Connectivity GmbH	`0.76ms` from Berlin, DE
128.24.45.199	AS8075 Microsoft Corporation	`0.23ms` from Boydton, US
200.96.248.87	AS8167 V tal	`1.38ms` from Brasilia, BR
154.182.153.247	AS8452 TE-AS	`5.53ms` from Cairo, EG
151.137.196.7	AS17199 Swagelok Company	`7.30ms` from Cincinnati, US
34.28.226.23	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
34.10.29.103	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
103.28.38.247	AS131353 NhanHoa Software company	`0.15ms` from Hanoi, VN
158.125.62.231	AS786 Jisc Services Limited	`5.02ms` from London, GB
91.80.33.247	AS30722 Vodafone Italia S.p.A.	`2.60ms` from Milan, IT
72.185.212.247	AS33363 Charter Communications, Inc	`8.30ms` from Orlando, US
177.65.238.231	AS28573 Claro NXT Telecomunicacoes Ltda	`9.48ms` from Osasco, BR
88.172.238.103	AS12322 Free SAS	`7.73ms` from Paris, FR
73.240.89.39	AS7922 Comcast Cable Communications, LLC	`5.12ms` from Portland, US
188.48.179.71	AS25019 Saudi Telecom Company JSC	`2.60ms` from Riyadh, SA
71.204.181.215	AS7922 Comcast Cable Communications, LLC	`5.54ms` from San Jose, US
221.205.111.199	AS4837 CHINA UNICOM China169 Backbone	`2.43ms` from Taiyuan, CN
221.204.16.55	AS4837 CHINA UNICOM China169 Backbone	`1.64ms` from Taiyuan, CN
70.68.26.7	AS6327 Shaw Communications	`8.40ms` from Vancouver, CA
82.157.67.215	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.77ms` from Beijing, CN
44.232.220.55	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
186.128.29.23	AS22927 Telefonica de Argentina	`2.08ms` from Buenos Aires, AR
129.21.199.167	AS4385 Rochester Institute of Technology	`1.95ms` from Buffalo, US
217.231.131.7	AS3320 Deutsche Telekom AG	`2.28ms` from Duesseldorf, DE

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 121.144.148.159

traceroute to 121.144.148.159 (121.144.148.159): 8 hops max, 52 byte packets

3 [AS9312] 103.193.131.76 4.187 ms

4 *

5 [] 36.255.56.179 0.298 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

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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