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:             kornet_ip@kt.com
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
111.196.164.215	AS4808 China Unicom Beijing Province Network	`3.53ms` from Beijing, CN
73.167.144.87	AS7922 Comcast Cable Communications, LLC	`12.91ms` from Boston, US
205.234.130.247	AS23352 DEFT.COM	`0.22ms` from Chicago, US
128.142.33.23	AS513 CERN - European Organization for Nuclear Research	`1.00ms` from Geneve, CH
139.9.21.7	AS55990 Huawei Cloud Service data center	`2.17ms` from Guangzhou, CN
113.168.245.55	AS45899 VNPT Corp	`2.12ms` from Hanoi, VN
90.251.36.39	AS5378 Vodafone Limited	`11.89ms` from London, GB
66.215.202.23	AS20115 Charter Communications LLC	`5.53ms` from Los Angeles, US
71.104.39.167	AS701 Verizon Business	`2.54ms` from New York City, US
189.128.61.183	AS8151 UNINET	`1.13ms` from Santiago de Queretaro, MX
60.20.17.199	AS4837 CHINA UNICOM China169 Backbone	`8.74ms` from Tieling, CN
48.195.204.119	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
54.71.216.215	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
85.218.226.167	AS39642 Norlys Digital A/S	`13.92ms` from Copenhagen, DK
174.143.121.23	AS33070 Rackspace Hosting	`1.11ms` from Dallas, US
168.61.149.103	AS8075 Microsoft Corporation	`0.34ms` from Des Moines, US
93.131.85.167	AS6805 Telefonica Germany GmbH & Co.OHG	`3.90ms` from Duesseldorf, DE
18.158.209.151	AS16509 Amazon.com, Inc.	`0.31ms` from Frankfurt am Main, DE
3.127.130.231	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
47.114.187.103	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.22ms` from Hangzhou, CN
125.59.154.183	AS9908 HK Cable TV Ltd	`1.30ms` from Hong Kong, HK
110.35.119.247	AS10164 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
88.5.138.215	AS3352 TELEFONICA DE ESPANA S.A.U.	`4.80ms` from Madrid, ES
120.151.103.7	AS1221 Telstra Limited	`9.23ms` from Melbourne, AU
134.56.122.39	AS23089 Hotwire Communications	`10.34ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -f2 -m7 121.144.148.96

traceroute to 121.144.148.96 (121.144.148.96): 7 hops max, 52 byte packets

2 [] 146.70.0.48 2.442 ms

3 *

4 [] 146.70.1.221 1.024 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

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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