221.157.112.0/22

AS4766 · Korea 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	kt.com
ASN	AS4766
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        221.144.0.0 - 221.168.255.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
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


person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-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

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-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

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

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

IP Address	ASN	Details
221.157.112.254	AS4766 Korea Telecom	`4.67ms` 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
104.81.14.118	AS16625 Akamai Technologies, Inc.	`0.34ms` from Berlin, DE
172.200.55.150	AS8075 Microsoft Corporation	`0.30ms` from Boydton, US
156.205.242.54	AS8452 TE-AS	`5.24ms` from Cairo, EG
220.225.193.54	AS18101 Reliance Communications Ltd.DAKC MUMBAI	`10.61ms` from Chennai, IN
88.134.217.198	AS3209 Vodafone GmbH	`0.51ms` from Frankfurt am Main, DE
176.70.19.182	AS1257 Tele2 Sverige AB	`0.67ms` from Goeteborg, SE
177.228.246.166	AS13999 Mega Cable, S.A. de C.V.	`16.44ms` from Guadalajara, MX
3.169.216.54	AS16509 Amazon.com, Inc.	`0.45ms` from Houston, US
96.95.249.182	AS7922 Comcast Cable Communications, LLC	`8.40ms` from Houston, US
103.152.186.246	AS139139 Shenyang Agricultural University	`2.29ms` from Liaoyang, CN
113.232.89.38	AS4837 CHINA UNICOM China169 Backbone	`14.13ms` from Liaoyang, CN
75.82.185.70	AS20001 Charter Communications Inc	`4.45ms` from Los Angeles, US
208.54.49.166	AS21928 T-Mobile USA, Inc.	`1.88ms` from New York City, US
34.95.161.102	AS396982 Google LLC	`0.13ms` from Sao Paulo, BR
78.83.118.38	AS29580 A1 Bulgaria EAD	`0.97ms` from Sofia, BG
167.179.64.182	AS20473 The Constant Company, LLC	`0.14ms` from Tokyo, JP
195.199.171.22	AS1955 KIFU (Governmental Info Tech Development Agency)	`5.11ms` from Budapest, HU
98.24.244.86	AS11426 Charter Communications Inc	`11.54ms` from Charlotte, US
89.41.91.86	AS8926 Moldtelecom SA	`5.12ms` from Chisinau, MD
87.65.19.86	AS5432 Proximus NV	`4.68ms` from Gravelines, FR
20.193.155.134	AS8075 Microsoft Corporation	`0.15ms` from Lohogaon, IN
199.231.69.118	AS213990 AOFB Telecom Networks Ltd	`2.35ms` from London, GB
82.68.17.70	AS13037 Zen Internet Ltd	`1.07ms` from Manchester, GB
213.82.6.86	AS3269 Telecom Italia S.p.A.	`2.02ms` from Milan, IT
87.145.8.22	AS3320 Deutsche Telekom AG	`1.91ms` from Nuernberg, DE

Traceroute

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

traceroute -a -n -q1 -f7 221.157.112.241

traceroute to 221.157.112.241 (221.157.112.241): 64 hops max, 52 byte packets

7 [AS4766] 112.174.116.38 7.609 ms

8 *

9 *

10 [AS4766] 221.157.112.241 5.198 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On October 9th 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