210.221.128.0/19

AS9318 · SK Broadband Co Ltd

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	South Korea
Domain	skbroadband.com
ASN	AS9318
Registry	APNIC
ID	SK-TELECOM-NET

WHOIS Details

inetnum:        210.221.128.0 - 210.221.159.255
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:  2020-11-02T07:36:03Z
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:        210.221.128.0 - 210.221.159.255
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

Nearby Ranges

BGP prefixes that overlap with 210.221.0.0/16

Range	ASN	Company	Num of IPs
210.221.0.0/17	AS9318	SK Broadband Co Ltd	32,768
210.221.0.0/17	AS10177	SK Broadband Co Ltd	32,768
210.221.0.0/17	AS9784	SK Broadband Co Ltd	32,768
210.221.224.0/19	AS3786	LG DACOM Corporation	8,192
210.221.192.0/19	AS3786	LG DACOM Corporation	8,192

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
210.221.128.54	AS18302 SK Telecom	`2.21ms` from Seoul, KR
210.221.131.193	AS18302 SK Telecom	`2.90ms` 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
185.176.9.3	AS50926 AXARNET COMUNICACIONES, S.L.	`4.45ms` from Barcelona, ES
73.159.18.3	AS7922 Comcast Cable Communications, LLC	`7.77ms` from Boston, US
198.111.188.211	AS237 Merit Network Inc.	`1.45ms` from Detroit, US
95.189.194.115	AS12389 PJSC Rostelecom	`8.81ms` from Novosibirsk, RU
88.94.63.83	AS2119 Telenor Norge AS	`10.84ms` from Sandefjord, NO
98.237.243.195	AS7922 Comcast Cable Communications, LLC	`6.72ms` from Seattle, US
14.7.7.35	AS17858 LG POWERCOMM	`1.90ms` from Seoul, KR
96.35.59.3	AS20115 Charter Communications LLC	`9.21ms` from St. Louis, US
54.178.181.195	AS16509 Amazon.com, Inc.	`0.18ms` from Tokyo, JP
174.182.72.35	AS7922 Comcast Cable Communications, LLC	`12.34ms` from Chicago, US
116.97.68.147	AS7552 Viettel Group	`3.15ms` from Hanoi, VN
146.212.212.163	AS21283 A1 Slovenija telekomunikacijske storitve,d.d.	`0.90ms` from Ljubljana, SI
13.134.140.131	AS16509 Amazon.com, Inc.	`0.17ms` from London, GB
20.191.116.211	AS8075 Microsoft Corporation	`0.16ms` from Quincy, US
191.112.130.35	AS7418 TELEFÓNICA CHILE S.A.	`3.45ms` from Santiago, CL
121.138.56.163	AS4766 Korea Telecom	`1.04ms` from Seoul, KR
61.73.145.179	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
8.135.103.147	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.73ms` from Shenzhen, CN
111.52.167.3	AS56042 China Mobile communications corporation	`5.39ms` from Taiyuan, CN
60.117.81.195	AS17676 SoftBank Corp.	`2.95ms` from Tokyo, JP
61.136.72.99	AS4837 CHINA UNICOM China169 Backbone	`5.31ms` from Zhengzhou, CN
84.46.159.99	AS136787 PacketHub S.A.	`0.08ms` from Zuerich, CH
181.236.191.115	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`18.54ms` from Bogota, CO
194.64.224.51	AS61157 PlusServer GmbH	`6.51ms` from Duesseldorf, DE
57.128.84.179	AS16276 OVH SAS	`0.11ms` from Gravelines, FR

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 210.221.129.184

traceroute to 210.221.129.184 (210.221.129.184): 6 hops max, 52 byte packets

2 [AS9009] 193.27.15.94 1.359 ms

3 [] 27.111.230.155 0.571 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On November 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales