210.99.16.0/22

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	APNIC
ID	KORNET

WHOIS Details

inetnum:        210.99.16.0 - 210.99.23.255
netname:        KORNET
descr:          Korea Telecom
country:        KR
admin-c:        IM667-AP
tech-c:         IM667-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T08:14:17Z
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:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        210.99.16.0 - 210.99.23.255
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
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

Nearby Ranges

BGP prefixes that overlap with 210.99.0.0/16

Range	ASN	Company	Num of IPs
210.99.177.0/24	AS4766	Korea Telecom	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

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

IP Address	ASN	Details
210.99.19.2	AS4766 Korea Telecom	`5.37ms` from Seoul, KR
210.99.16.6	AS4766 Korea Telecom	`5.17ms` 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
100.48.39.230	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
35.80.8.54	AS16509 Amazon.com, Inc.	`0.58ms` from Boardman, US
216.125.144.22	AS394534 City of Chicago	`1.39ms` from Chicago, US
50.77.40.230	AS7922 Comcast Cable Communications, LLC	`12.70ms` from Denver, US
4.185.173.230	AS8075 Microsoft Corporation	`0.20ms` from Frankfurt am Main, DE
46.163.207.246	AS51935 BLC Telecom Oy	`7.81ms` from Helsinki, FI
166.104.210.182	AS9321 Hanyang University	`1.88ms` from Incheon, KR
5.252.220.70	AS25180 Exponential-E Ltd.	`0.93ms` from London, GB
81.39.27.230	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.69ms` from Madrid, ES
67.253.169.198	AS11351 Charter Communications Inc	`17.75ms` from New York City, US
37.195.199.86	AS31200 Novotelecom Ltd	`1.34ms` from Novosibirsk, RU
39.90.187.6	AS4837 CHINA UNICOM China169 Backbone	`7.00ms` from Qingdao, CN
34.176.30.182	AS396982 Google LLC	`0.09ms` from Santiago, CL
15.218.87.182	AS20055 Wholesail networks LLC	`1.72ms` from Seattle, US
210.220.133.214	AS4766 Korea Telecom	`0.95ms` from Seoul, KR
14.94.102.22	AS4766 Korea Telecom	`1.49ms` from Seoul, KR
113.239.191.134	AS4837 CHINA UNICOM China169 Backbone	`11.46ms` from Tieling, CN
62.47.38.230	AS8447 A1 Telekom Austria AG	`1.03ms` from Vienna, AT
81.210.80.6	AS12741 Netia SA	`0.33ms` from Warsaw, PL
212.85.106.54	AS12824 home.pl sp. z o.o.	`1.12ms` from Warsaw, PL
107.85.97.38	AS20057 AT&T Enterprises, LLC	`19.31ms` from Atlanta, US
44.250.23.150	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
186.117.147.22	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.94ms` from Bogotá, CO
195.199.229.134	AS1955 KIFU (Governmental Info Tech Development Agency)	`8.21ms` from Budapest, HU
104.8.167.38	AS7018 AT&T Enterprises, LLC	`4.07ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 210.99.16.73

traceroute to 210.99.16.73 (210.99.16.73): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.42 0.076 ms

2 [AS4766] 218.145.32.254 1.011 ms

3 *

4 *

5 [AS4766] 112.174.117.86 4.725 ms

6 [AS4766] 112.188.180.34 4.676 ms

7 *

8 [AS4766] 221.158.87.166 5.715 ms

9 [AS4766] 210.99.19.2 5.645 ms

10 [] 192.32.1.253 5.413 ms

11 [AS4766] 210.99.16.73 6.427 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 21st 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