121.50.240.0/24

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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:        [email protected]
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:         [email protected]
nic-hdl:        IM12-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 121.50.240.0/24

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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
121.50.240.1	AS17857 SK Broadband Co Ltd	`7.63ms` 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
13.221.55.56	AS14618 Amazon.com, Inc.	`0.70ms` from Ashburn, US
73.86.111.120	AS7922 Comcast Cable Communications, LLC	`7.29ms` from Ashburn, US
186.17.254.88	AS23201 Telecel S.A.	`6.96ms` from Asuncion, PY
97.235.40.248	AS6167 Verizon Business	`15.93ms` from Chicago, US
202.168.170.200	AS58834 Guangdong Cable Corporation Limited	`0.95ms` from Guangzhou, CN
50.158.218.104	AS22773 Cox Communications Inc.	`9.67ms` from Los Angeles, US
71.82.215.72	AS20115 Charter Communications LLC	`17.06ms` from Minneapolis, US
37.29.15.24	AS31133 PJSC MegaFon	`0.81ms` from Samara, RU
201.110.242.72	AS8151 UNINET	`3.31ms` from Santiago de Queretaro, MX
135.225.123.152	AS8075 Microsoft Corporation	`0.19ms` from Gaevle, SE
70.178.237.200	AS22773 Cox Communications Inc.	`11.71ms` from Kansas City, US
109.148.99.184	AS2856 British Telecommunications PLC	`2.42ms` from London, GB
5.138.83.104	AS12389 PJSC Rostelecom	`17.83ms` from Moscow, RU
161.153.49.72	AS31898 Oracle Corporation	`0.94ms` from Phoenix, US
67.87.180.216	AS6128 Cablevision Systems Corp.	`6.55ms` from Secaucus, US
15.165.37.248	AS16509 Amazon.com, Inc.	`0.60ms` from Seoul, KR
14.63.6.72	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
100.21.170.24	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
124.171.77.248	AS7545 TPG Telecom Limited	`1.74ms` from Brisbane, AU
194.78.194.24	AS5432 Proximus NV	`1.03ms` from Brussels, BE
51.37.33.104	AS15502 Vodafone Ireland Limited	`2.14ms` from Dublin, IE
193.123.186.168	AS31898 Oracle Corporation	`0.24ms` from London, GB
101.186.167.136	AS1221 Telstra Limited	`4.88ms` from Melbourne, AU
124.169.160.72	AS7545 TPG Telecom Limited	`2.29ms` from Melbourne, AU
185.76.61.88	AS206150 F.N.S. HOLDINGS LIMITED	`0.30ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 121.50.240.161

traceroute to 121.50.240.161 (121.50.240.161): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.58 0.068 ms

2 [AS9318] 1.255.14.55 0.6 ms

3 [AS9318] 1.255.14.54 1.89 ms

4 *

5 *

6 *

7 *

8 [AS17857] 121.50.240.161 15.944 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 28th 2025

What are IP address ranges?

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