121.50.243.0/24

AS17857 · SK Broadband Co Ltd

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Summary

Country	South Korea
Domain	skbroadband.com
ASN	AS17857
Parent Range	121.50.224.0/19
Registry	APNIC
ID	TBROAD

WHOIS Details

inetnum:        121.50.224.0 - 121.50.255.255
netname:        broadNnet
descr:          SK Broadband Co Ltd
country:        KR
admin-c:        IM670-AP
tech-c:         IM670-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2020-12-29T05:46:11Z
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 Jung-gu Toegye-ro 24
country:        KR
phone:          +82-80-828-2106
e-mail:         ip-adm@skbroadband.com
nic-hdl:        IM670-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-10-05T05:20:03Z
source:         APNIC

inetnum:        121.50.224.0 - 121.50.255.255
netname:        broadNnet-KR
descr:          SK Broadband Co Ltd
country:        KR
admin-c:        IM12-KR
tech-c:         IM12-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 Jung-gu Toegye-ro 24
address:        SK Namsan Green Bldg.
country:        KR
phone:          +82-80-828-2106
e-mail:         ip-adm@skbroadband.com
nic-hdl:        IM12-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 121.50.243.0/24

Range	ASN	Company	Num of IPs
121.50.224.0/19	AS17857	SK Broadband Co Ltd	8,192

Nearby Ranges

BGP prefixes that overlap with 121.50.0.0/16

Range	ASN	Company	Num of IPs
121.50.224.0/19	AS17857	SK Broadband Co Ltd	8,192
121.50.176.0/20	AS18046	Chuan Chan Co. Ltd.	4,096
121.50.16.0/20	AS4668	LG CNS	4,096
121.50.192.0/20	AS9313	Network Technology (AUST) P/L	4,096
121.50.208.0/21	AS9313	Network Technology (AUST) P/L	2,048
121.50.152.0/21	AS10013	FreeBit Co., Ltd.	2,048
121.50.40.0/21	AS63997	Tsukaeru.net, Web Hosting Company, Japan	2,048
121.50.48.0/21	AS151374	Foresightwave INC.	2,048
121.50.160.0/21	AS2497	Hikari Cable TV Co., Ltd	2,048
121.50.218.0/24	AS132337	Axclusive	256
121.50.219.0/24	AS132337	Axclusive	256
121.50.220.0/24	AS132337	Axclusive	256
121.50.221.0/24	AS132337	Axclusive	256
121.50.222.0/24	AS132337	Axclusive	256
121.50.223.0/24	AS132337	Axclusive	256
121.50.176.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.177.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.179.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.181.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.183.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.190.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.191.0/24	AS18046	Chuan Chan Co. Ltd.	256
121.50.0.0/24	AS24109	WNS NASHIK OFFICE	256
121.50.57.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.3.0/24	AS24109	WNS Global Services	256
121.50.4.0/24	AS24109	WNS BANGLORE OFFICE	256
121.50.5.0/24	AS24109	WNS Chennai OFFICE	256
121.50.6.0/24	AS24109	WNS Philippines Office Network	256
121.50.7.0/24	AS24109	WNS CHENNAI SEZ OFFICE	256
121.50.33.0/24	AS38750	PT Telemedia Dinamika Sarana	256
121.50.34.0/24	AS38750	PT Telemedia Dinamika Sarana	256
121.50.35.0/24	AS38750	PT Telemedia Dinamika Sarana	256
121.50.36.0/24	AS38750	PT Telemedia Dinamika Sarana	256
121.50.39.0/24	AS38750	PT Telemedia Dinamika Sarana	256
121.50.32.0/24	AS56237	Universitas Lampung	256
121.50.1.0/24	AS24109	WNS NASHIK OFFICE	256
121.50.58.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.59.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.60.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.61.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.62.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.63.0/24	AS10006	SECOM Trust Systems CO.,LTD.	256
121.50.216.0/24	AS132337	Axclusive	256
121.50.217.0/24	AS132337	Axclusive	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

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

IP Address	ASN	Details
121.50.243.1	AS17857 SK Broadband Co Ltd	`7.65ms` 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
8.22.166.152	AS21754 Markel Corporation	`3.85ms` from Ashburn, US
181.47.62.8	AS27747 Telecentro S.A.	`5.71ms` from Buenos Aires, AR
181.98.13.216	AS7303 Telecom Argentina S.A.	`3.52ms` from Buenos Aires, AR
160.178.164.216	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`5.16ms` from Casablanca, MA
75.8.104.56	AS7018 AT&T Enterprises, LLC	`3.26ms` from Dallas, US
67.197.31.168	AS14615 Comporium, Inc	`9.59ms` from Durham, US
119.121.248.120	AS4134 CHINANET-BACKBONE	`2.95ms` from Guangzhou, CN
14.162.212.40	AS45899 VNPT Corp	`1.15ms` from Hanoi, VN
24.243.170.216	AS11427 Charter Communications Inc	`18.00ms` from Houston, US
188.31.15.104	AS206067 Hutchison 3G UK Limited	`14.34ms` from London, GB
41.78.17.152	AS37119 UNITEL SA	`0.90ms` from Luanda, AO
79.11.43.200	AS3269 Telecom Italia S.p.A.	`6.04ms` from Milan, IT
78.201.64.200	AS12322 Free SAS	`10.48ms` from Paris, FR
190.208.115.200	AS6535 Telmex Servicios Empresariales S.A.	`19.90ms` from Santiago, CL
50.46.143.104	AS20055 Wholesail networks LLC	`1.42ms` from Seattle, US
69.124.225.200	AS6128 Cablevision Systems Corp.	`6.62ms` from Secaucus, US
3.37.61.72	AS16509 Amazon.com, Inc.	`0.76ms` from Seoul, KR
101.184.135.168	AS1221 Telstra Limited	`7.49ms` from Sydney, AU
157.254.168.104	AS63473 HostHatch, LLC	`0.23ms` from Sydney, AU
1.173.145.104	AS3462 Data Communication Business Group	`4.87ms` from Taichung, TW
59.168.181.40	AS9824 JCOM Co., Ltd.	`8.97ms` from Tokyo, JP
58.19.150.56	AS4837 CHINA UNICOM China169 Backbone	`4.41ms` from Wuhan, CN
123.116.204.200	AS4808 China Unicom Beijing Province Network	`3.13ms` from Beijing, CN
73.176.82.72	AS7922 Comcast Cable Communications, LLC	`5.57ms` from Chicago, US
95.201.54.88	AS3301 Telia Company AB	`15.14ms` from Copenhagen, DK

Traceroute

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

traceroute -a -n -q1 -f6 121.50.243.255

traceroute to 121.50.243.255 (121.50.243.255): 64 hops max, 52 byte packets

6 [AS4637] 210.176.150.116 2.26 ms

7 [AS9318] 1.255.14.108 1.141 ms

8 *

9 *

10 *

11 [AS17857] 121.50.243.255 8.041 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 2026

What are IP address ranges?

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