1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.50.0.0/16
  4. AS17857  | 121.50.232.0/21

121.50.232.0/21

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 121.50.232.0/21

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

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

IP Address ASN Details
121.50.238.0 AS17857 SK Broadband Co Ltd 7.74ms from Seoul, KR
121.50.233.0 AS17857 SK Broadband Co Ltd 7.72ms from Seoul, KR
121.50.239.0 AS17857 SK Broadband Co Ltd 7.81ms from Seoul, KR
121.50.236.0 AS17857 SK Broadband Co Ltd 7.82ms from Seoul, KR
121.50.235.0 AS17857 SK Broadband Co Ltd 7.68ms from Seoul, KR
121.50.232.1 AS17857 SK Broadband Co Ltd 8.07ms 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
92.68.152.117 AS1136 KPN B.V. 2.60ms from Amsterdam, NL
125.32.157.5 AS4837 CHINA UNICOM China169 Backbone 3.52ms from Changchun, CN
175.31.253.165 AS4134 CHINANET-BACKBONE 9.46ms from Dalian, CN
24.243.198.229 AS11427 Charter Communications Inc 4.45ms from Dallas, US
84.167.229.69 AS3320 Deutsche Telekom AG 3.46ms from Frankfurt am Main, DE
47.121.196.165 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.47ms from Heyuan, CN
97.64.215.53 AS30036 Mediacom Communications Corp 16.37ms from Kansas City, US
68.224.33.149 AS22773 Cox Communications Inc. 6.29ms from Los Angeles, US
176.132.150.181 AS5410 Bouygues Telecom SA 15.27ms from Paris, FR
61.78.145.245 AS4766 Korea Telecom 1.26ms from Seoul, KR
24.217.214.69 AS20115 Charter Communications LLC 3.94ms from St. Louis, US
58.161.37.53 AS1221 Telstra Limited 7.48ms from Sydney, AU
197.2.26.69 AS37705 TOPNET 2.10ms from Tunis, TN
151.232.177.69 AS58224 Iran Telecommunication Company PJS 14.85ms from Az Za`ayin, QA
116.142.102.69 AS4837 CHINA UNICOM China169 Backbone 2.95ms from Changchun, CN
74.62.164.149 AS11427 Charter Communications Inc 14.17ms from Dallas, US
50.77.204.53 AS7922 Comcast Cable Communications, LLC 6.64ms from Detroit, US
73.26.72.213 AS7922 Comcast Cable Communications, LLC 14.36ms from Greenwood Village, US
111.126.237.165 AS4134 CHINANET-BACKBONE 3.27ms from Hohhot, CN
161.132.221.245 AS27843 WIN EMPRESAS S.A.C. 0.25ms from Lima, PE
119.225.58.197 AS7474 SingTel Optus Pty Ltd 1.10ms from Melbourne, AU
179.26.209.245 AS6057 Administracion Nacional de Telecomunicaciones 1.69ms from Montevideo, UY
126.139.2.117 AS17676 SoftBank Corp. 1.05ms from Tokyo, JP
194.44.101.5 AS57519 LTD Bukovel 10.07ms from Warsaw, PL
4.180.250.5 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -f9 -m22 121.50.237.170
traceroute to 121.50.237.170 (121.50.237.170): 22 hops max, 52 byte packets
10 *
11 [AS16276] 192.99.146.129 70.711 ms
12 *
13 [] 206.72.210.167 71.199 ms
14 *
15 *
16 *
17 *
18 *
19 [AS17857] 123.99.64.129 200.581 ms
20 *
21 *
22 *
Measurement taken from IPinfo ProbeNet in Beauharnois, CA
On

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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