121.144.148.0/24

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 121.144.148.0/24

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS17588	Korea Telecom	2,097,152
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	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

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

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
135.148.57.152	AS16276 OVH SAS	`1.33ms` from Ashburn, US
134.166.9.8	AS668 United States Department of Defense (DoD)	`0.52ms` from Atlanta, US
41.68.140.88	AS24835 Vodafone Data	`12.61ms` from Cairo, EG
52.252.226.72	AS8075 Microsoft Corporation	`0.44ms` from Chicago, US
122.173.117.200	AS24560 Bharti Airtel Ltd., Telemedia Services	`6.54ms` from Delhi, IN
54.154.62.152	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
3.121.221.152	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE
87.146.8.136	AS3320 Deutsche Telekom AG	`4.88ms` from Frankfurt am Main, DE
79.246.219.248	AS3320 Deutsche Telekom AG	`6.29ms` from Frankfurt am Main, DE
91.145.73.168	AS16086 DNA Oyj	`9.80ms` from Helsinki, FI
36.94.31.136	AS7713 PT Telekomunikasi Indonesia	`0.66ms` from Jakarta, ID
4.240.80.248	AS8075 Microsoft Corporation	`0.30ms` from Lohogaon, IN
146.174.44.168	AS4181 TDS TELECOM	`8.41ms` from Los Angeles, US
88.13.239.72	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.70ms` from Madrid, ES
67.247.145.248	AS11351 Charter Communications Inc	`19.99ms` from New York City, US
202.226.36.248	AS131965 Xserver Inc.	`0.45ms` from Osaka, JP
125.157.105.200	AS4766 Korea Telecom	`6.88ms` from Seoul, KR
187.10.247.248	AS27699 TELEFÔNICA BRASIL S.A	`3.27ms` from São Paulo, BR
37.14.92.184	AS12479 Orange Espagne SA	`5.94ms` from Zaragoza, ES
82.172.95.8	AS50266 Odido Netherlands B.V.	`3.35ms` from Amsterdam, NL
172.174.53.248	AS8075 Microsoft Corporation	`0.63ms` from Ashburn, US
52.89.1.40	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
102.97.20.88	AS36925 MEDITELECOM	`7.54ms` from Casablanca, MA
18.224.32.88	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
66.69.39.8	AS11427 Charter Communications Inc	`8.25ms` from Dallas, US

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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