121.126.100.0/24

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	haion.net
ASN	AS4766
Registry	APNIC
ID	HAIONNET

WHOIS Details

inetnum:        121.126.0.0 - 121.126.255.255
netname:        HAIONNET
descr:          HAIonNet
admin-c:        IM851-AP
tech-c:         IM851-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T02:44:02Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        Seoul Guro-gu Digital-ro
country:        KR
phone:          +82-2-3281-3456
e-mail:         opt@haion.net
nic-hdl:        IM851-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-11-16T08:20:03Z
source:         APNIC

inetnum:        121.126.0.0 - 121.126.255.255
netname:        HAIONNET-KR
descr:          HAIonNet
country:        KR
admin-c:        HP88-KR
tech-c:         HP88-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.kisa.or.kr.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Guro-gu Digital-ro
address:        DaeRyungPostTower 1Cha 1105
country:        KR
phone:          +82-2-3281-3456
e-mail:         opt@haion.net
nic-hdl:        HP88-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 121.126.0.0/16

Range	ASN	Company	Num of IPs
121.126.142.0/24	AS4766	corporation	256
121.126.143.0/24	AS4766	HOME	256
121.126.144.0/24	AS4766	HOME	256
121.126.211.0/24	AS4766	corporation	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

14 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
121.126.100.59	AS4766 Korea Telecom	`0.91ms` from Seoul, KR

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
82.170.52.152	AS1136 KPN B.V.	`3.06ms` from Amsterdam, NL
216.231.34.120	AS5065 Bunny Communications	`0.26ms` from Ashburn, US
181.82.63.120	AS7303 Telecom Argentina S.A.	`11.24ms` from Buenos Aires, AR
84.133.249.120	AS3320 Deutsche Telekom AG	`6.88ms` from Frankfurt am Main, DE
139.159.207.56	AS55990 Huawei Cloud Service data center	`1.53ms` from Guangzhou, CN
132.239.197.248	AS7377 University of California, San Diego	`2.73ms` from Los Angeles, US
87.151.205.88	AS3320 Deutsche Telekom AG	`5.52ms` from Nuernberg, DE
168.196.74.8	AS61942 TURBONET TELECOM LTDA	`9.28ms` from Osasco, BR
119.176.247.24	AS4837 CHINA UNICOM China169 Backbone	`4.56ms` from Qingdao, CN
3.88.107.88	AS14618 Amazon.com, Inc.	`0.46ms` from Reston, US
116.233.114.168	AS4812 China Telecom (Group)	`3.46ms` from Shanghai, CN
122.248.207.24	AS16509 Amazon.com, Inc.	`0.10ms` from Singapore, SG
5.53.221.232	AS13124 A1 Bulgaria EAD	`3.36ms` from Sofia, BG
220.108.3.120	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.27ms` from Tokyo, JP
60.61.139.56	AS9824 JCOM Co., Ltd.	`13.76ms` from Tokyo, JP
77.175.85.104	AS1136 KPN B.V.	`1.55ms` from Amsterdam, NL
76.131.49.120	AS7922 Comcast Cable Communications, LLC	`3.21ms` from Denver, US
73.155.200.248	AS7922 Comcast Cable Communications, LLC	`4.24ms` from Houston, US
72.89.15.200	AS701 Verizon Business	`2.39ms` from New York City, US
59.19.60.8	AS4766 Korea Telecom	`7.26ms` from Seoul, KR
220.71.178.152	AS4766 Korea Telecom	`5.53ms` from Seoul, KR
119.245.83.24	AS2514 NTT PC Communications, Inc.	`2.30ms` from Tokyo, JP
116.220.44.56	AS9824 JCOM Co., Ltd.	`9.40ms` from Tokyo, JP
38.113.181.184	AS174 Cogent Communications, LLC	`2.30ms` from Toronto, CA
91.135.165.40	AS39878 Peter Rauter GmbH	`4.12ms` from Vienna, AT

Traceroute

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

traceroute -a -n -q1 121.126.100.84

traceroute to 121.126.100.84 (121.126.100.84): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.42 0.076 ms

2 *

3 *

4 *

5 *

6 [AS4766] 112.191.117.39 1.331 ms

7 [AS4766] 112.189.27.247 1.15 ms

8 [AS4766] 121.189.11.230 1.329 ms

9 [AS4766] 124.198.8.217 1.322 ms

10 [AS4766] 124.198.4.6 1.155 ms

11 [AS4766] 121.126.100.84 66.752 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 2026

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