121.150.105.0/24

AS17588 · The Daegu Bank, Ltd

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17588
Parent Range	121.128.0.0/11
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        121.128.0.0 - 121.159.255.255
netname:        KORNET
descr:          Korea Telecom
admin-c:        IM667-AP
tech-c:         IM667-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        [email protected] 20170203
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Seoul Songpa-gu Jungdae-ro 135
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20150513
source:         APNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 20170328
source:         APNIC

inetnum:        121.128.0.0 - 121.159.255.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.krnic.net.
changed:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
country:        KR
phone:          +82-2-500-6630
e-mail:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 121.150.105.0/24

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 121.150.0.0/16

Range	ASN	Company	Num of IPs
121.128.0.0/11	AS4766	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	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
121.150.39.0/24	AS4766	Gyeongbukdaehakgyo	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
46.144.161.104	AS1136 KPN B.V.	`0.49ms` from Amsterdam, NL
68.184.82.136	AS20115 Charter Communications LLC	`3.97ms` from Atlanta, US
222.30.204.184	AS4538 China Education and Research Network Center	`14.84ms` from Beijing, CN
74.128.69.184	AS10796 Charter Communications Inc	`17.59ms` from Cleveland, US
169.48.137.136	AS36351 IBM Cloud	`0.98ms` from Dallas, US
79.201.29.216	AS3320 Deutsche Telekom AG	`5.31ms` from Duesseldorf, DE
86.191.205.8	AS2856 British Telecommunications PLC	`7.11ms` from Erith, GB
198.189.255.88	AS2152 CENIC	`0.36ms` from Los Angeles, US
31.37.7.120	AS5410 Bouygues Telecom SA	`2.79ms` from Marseille, FR
1.159.50.200	AS1221 Telstra Limited	`5.63ms` from Melbourne, AU
133.48.58.136	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.22ms` from Osaka, JP
222.206.187.200	AS4538 China Education and Research Network Center	`14.41ms` from Qingdao, CN
52.206.253.24	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
49.1.83.72	AS10036 DLIVE	`1.76ms` from Seoul, KR
60.186.225.184	AS4134 CHINANET-BACKBONE	`7.44ms` from Shanghai, CN
84.159.133.24	AS3320 Deutsche Telekom AG	`1.93ms` from Berlin, DE
35.86.241.88	AS16509 Amazon.com, Inc.	`0.60ms` from Boardman, US
100.21.88.56	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
64.182.160.104	AS54489 CoreSpace, Inc.	`0.84ms` from Dallas, US
103.120.167.120	AS134562 DISCOVERY INTERNET	`1.20ms` from Dhaka, BD
62.155.175.168	AS3320 Deutsche Telekom AG	`5.10ms` from Duesseldorf, DE
83.20.120.72	AS5617 Orange Polska Spolka Akcyjna	`18.93ms` from Gdansk, PL
14.169.210.72	AS45899 VNPT Corp	`1.49ms` from Ho Chi Minh City, VN
221.207.38.24	AS4837 CHINA UNICOM China169 Backbone	`5.11ms` from Lanzhou, CN
78.145.175.72	AS13285 TalkTalk Communications Limited	`2.25ms` from London, GB

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 121.150.105.27

traceroute to 121.150.105.27 (121.150.105.27): 6 hops max, 52 byte packets

2 [AS133752] 64.120.119.4 0.221 ms

3 [] 31.31.38.192 0.322 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On January 30th 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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