203.226.240.0/21

AS9644 · SK Telecom

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

Summary

Country	South Korea
Domain	sktelecom.com
ASN	AS9644
Registry	APNIC
ID	SK-TELECOM-NET

WHOIS Details

inetnum:        203.226.240.0 - 203.226.247.255
netname:        SK-TELECOM-NET
descr:          SK Telecom
country:        KR
admin-c:        IM687-AP
tech-c:         IM687-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T07:04:05Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        Seoul Jung-gu Eulji-ro 65
country:        KR
phone:          +82-2-1599-0011
e-mail:         sktsec@sk.com
nic-hdl:        IM687-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-10-10T00:50:38Z
source:         APNIC

inetnum:        203.226.240.0 - 203.226.247.255
netname:        SK-TELECOM-NET-KR
descr:          SK Telecom
country:        KR
admin-c:        IA110-KR
tech-c:         IA110-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.
source:         KRNIC

person:         IP Manager
address:        Seoul Jung-gu Eulji-ro 65
address:        T tower
country:        KR
phone:          +82-2-1599-0011
e-mail:         sktsec@sk.com
nic-hdl:        IA110-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
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.
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.226.0.0/16

Range	ASN	Company	Num of IPs
203.226.64.0/18	AS10194	Doosan Enerbility co., LTD.	16,384
203.226.192.0/19	AS9644	SK Telecom	8,192
203.226.224.0/20	AS9644	SK Telecom	4,096
203.226.248.0/22	AS9644	SK Telecom	1,024
203.226.254.0/23	AS4792	NATE Communications Corporation	512
203.226.253.0/24	AS4792	NATE Communications 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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
80.113.174.53	AS33915 Vodafone Libertel B.V.	`3.98ms` from Amsterdam, NL
114.255.129.117	AS4808 China Unicom Beijing Province Network	`3.01ms` from Beijing, CN
125.17.44.69	AS9498 BHARTI Airtel Ltd.	`1.27ms` from Chennai, IN
34.57.220.229	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
201.65.145.69	AS4230 CLARO S.A.	`10.81ms` from Fortaleza, BR
110.39.186.165	AS38264 National WiMAX/IMS environment	`1.56ms` from Lahore, PK
31.127.119.213	AS2856 British Telecommunications PLC	`4.08ms` from London, GB
67.182.25.21	AS7922 Comcast Cable Communications, LLC	`10.92ms` from Los Angeles, US
43.205.126.21	AS16509 Amazon.com, Inc.	`0.13ms` from Mumbai, IN
180.116.64.5	AS4134 CHINANET-BACKBONE	`5.29ms` from Nanjing, CN
173.68.205.149	AS701 Verizon Business	`2.57ms` from New York City, US
118.105.174.133	AS18126 Chubu Telecommunications Company, Inc.	`7.58ms` from Osaka, JP
4.242.34.165	AS8075 Microsoft Corporation	`0.41ms` from Quincy, US
95.245.21.229	AS3269 Telecom Italia S.p.A.	`7.75ms` from Rende, IT
136.60.249.165	AS16591 Google Fiber Inc.	`1.48ms` from Salt Lake City, US
162.213.153.117	AS36776 Five9 Inc.	`1.33ms` from San Jose, US
66.232.143.229	AS9952 Hostway IDC	`1.08ms` from Seoul, KR
223.112.71.69	AS56046 China Mobile communications corporation	`2.89ms` from Suzhou, CN
117.72.96.5	AS141679 China Telecom Beijing Tianjin Hebei Big Data Industry Park Branch	`0.21ms` from Tianjin, CN
61.209.118.37	AS4725 SoftBank Corp.	`3.30ms` from Tokyo, JP
111.175.225.69	AS4134 CHINANET-BACKBONE	`0.92ms` from Wuhan, CN
109.111.103.37	AS6752 Andorra Telecom	`3.24ms` from Barcelona, ES
180.150.188.37	AS23724 IDC, China Telecommunications Corporation	`2.94ms` from Beijing, CN
61.51.214.149	AS4808 China Unicom Beijing Province Network	`2.81ms` from Beijing, CN
110.230.235.245	AS4837 CHINA UNICOM China169 Backbone	`9.58ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -f4 -m12 203.226.242.223

traceroute to 203.226.242.223 (203.226.242.223): 12 hops max, 52 byte packets

4 [] 185.1.192.47 10.787 ms

5 *

6 *

7 [AS6939] 184.105.64.121 79.577 ms

8 *

9 [AS6939] 65.19.129.150 136.366 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Valencia, ES

On February 7th 2026

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