210.99.0.0/16

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        210.99.40.0 - 210.99.75.255
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

Nearby Ranges

BGP prefixes that overlap with 210.0.0.0/8

Range	ASN	Company	Num of IPs
210.8.0.0/15	AS2764	AAPT Limited	131,072
210.8.0.0/15	AS17535	AAPT Limited	131,072
210.8.0.0/15	AS4739	AAPT Limited	131,072
210.182.0.0/16	AS9784	LG DACOM Corporation	65,536
210.108.0.0/16	AS9526	LG DACOM Corporation	65,536
210.108.0.0/16	AS9767	LG DACOM Corporation	65,536
210.182.0.0/16	AS17598	LG DACOM Corporation	65,536
210.177.0.0/16	AS4515	PCCW Business Internet Access	65,536
210.58.0.0/16	AS17709	ETWebs Taiwan Co. Ltd.	65,536
210.64.0.0/16	AS4780	Digital United Inc.	65,536
210.85.0.0/16	AS4780	ETWebs Taiwan Co. Ltd.	65,536
210.124.0.0/16	AS9759	LG DACOM Corporation	65,536
210.108.0.0/16	AS9776	LG DACOM Corporation	65,536
210.122.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.124.0.0/16	AS9856	LG DACOM Corporation	65,536
210.216.0.0/16	AS138195	LG DACOM Corporation	65,536
210.196.0.0/16	AS2516	KDDI CORPORATION	65,536
210.182.0.0/16	AS38431	LG DACOM Corporation	65,536
210.124.0.0/16	AS4202	LG DACOM Corporation	65,536
210.197.0.0/16	AS4725	SoftBank Corp.	65,536
210.216.0.0/16	AS18164	LG DACOM Corporation	65,536
210.66.0.0/16	AS4780	New Century InfoComm Tech. Co., Ltd.	65,536
210.68.0.0/16	AS4780	Digital United Inc.	65,536
210.120.0.0/16	AS9759	LG DACOM Corporation	65,536
210.85.0.0/16	AS17709	ETWebs Taiwan Co. Ltd.	65,536
210.234.0.0/16	AS2516	KDDI CORPORATION	65,536
210.124.0.0/16	AS9767	LG DACOM Corporation	65,536
210.182.0.0/16	AS9846	LG DACOM Corporation	65,536
210.109.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.108.0.0/16	AS9852	LG DACOM Corporation	65,536
210.120.0.0/16	AS9852	LG DACOM Corporation	65,536
210.215.0.0/16	AS38055	Nexon Asia Pacific Pty Ltd	65,536
210.122.0.0/16	AS38123	SEJONG NETWORKS	65,536
210.122.0.0/16	AS131826	SEJONG NETWORKS	65,536
210.202.0.0/16	AS17709	Asia Pacific Telecom Co., Ltd	65,536
210.60.0.0/16	AS1659	Taiwan Academic Network	65,536
210.202.0.0/16	AS24154	Asia Pacific Telecom Co., Ltd	65,536
210.109.0.0/16	AS38676	SEJONG NETWORKS	65,536
210.240.0.0/16	AS1659	Taiwan Academic Network	65,536
210.182.0.0/16	AS131878	LG DACOM Corporation	65,536
210.165.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
210.124.0.0/16	AS45974	LG DACOM Corporation	65,536
210.109.0.0/16	AS18300	SEJONG NETWORKS	65,536
210.136.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
210.150.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
210.108.0.0/16	AS18305	LG DACOM Corporation	65,536
210.109.0.0/16	AS18305	SEJONG NETWORKS	65,536
210.122.0.0/16	AS9578	SEJONG NETWORKS	65,536
210.91.0.0/16	AS4766	Korea Telecom	65,536
210.215.0.0/16	AS17766	Nexon Asia Pacific Pty Ltd	65,536

Hosted domains

There are 176 domain names hosted across 85 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.99.223.38	wisecutnews.co.kr	20
210.99.89.21	clickkorea.or.kr	7
210.99.193.208	opdaegang.co.kr	6
210.99.214.195	helpmejonan.com	5
210.99.221.86	sonicrental.co.kr	5
210.99.224.165	hotdealmoa.com	3
210.99.174.92	comcose.com	3
210.99.177.80	kocea.or.kr	2
210.99.81.43	stacknsky.or.kr	2
210.99.81.141	namis.or.kr	2
210.99.88.129	sdmc.go.kr	2
210.99.182.10	ktcu.or.kr	2
210.99.32.139	familysalang.com	2
210.99.75.40	hidb.re.kr	1
210.99.175.185	donasign.co.kr	1
210.99.13.212	socialonepass.or.kr	1
210.99.81.35	cleansys.or.kr	1
210.99.81.15	watercluster.or.kr	1
210.99.81.65	inair.or.kr	1
210.99.81.203	koclean.or.kr	1

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

27,169 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.99.109.138	AS4766 Korea Telecom	`1.85ms` from Seoul, KR
210.99.110.1	AS4766 Korea Telecom	`1.77ms` from Seoul, KR
210.99.2.1	AS4766 Korea Telecom	`1.88ms` from Seoul, KR
210.99.30.236	AS4766 Korea Telecom	`1.74ms` from Seoul, KR
210.99.58.254	AS4766 Korea Telecom	`6.75ms` from Seoul, KR
210.99.126.129	AS4766 Korea Telecom	`10.25ms` from Seoul, KR
210.99.12.1	AS4766 Korea Telecom	`1.45ms` from Seoul, KR
210.99.28.129	AS4766 Korea Telecom	`2.88ms` from Seoul, KR
210.99.23.17	AS4766 Korea Telecom	`6.13ms` from Seoul, KR
210.99.116.125	AS4766 Korea Telecom	`1.53ms` from Seoul, KR
210.99.1.160	AS4766 Korea Telecom	`1.57ms` from Seoul, KR
210.99.84.50	AS4766 Korea Telecom	`6.63ms` from Seoul, KR
210.99.107.1	AS4766 Korea Telecom	`1.80ms` from Seoul, KR
210.99.64.1	AS4766 Korea Telecom	`7.64ms` from Seoul, KR
210.99.118.207	AS4766 Korea Telecom	`1.35ms` from Seoul, KR
210.99.69.31	AS4766 Korea Telecom	`6.45ms` from Seoul, KR
210.99.59.11	AS4766 Korea Telecom	`8.46ms` from Seoul, KR
210.99.29.234	AS4766 Korea Telecom	`1.79ms` from Seoul, KR
210.99.36.1	AS4766 Korea Telecom	`1.81ms` from Seoul, KR
210.99.4.2	AS4766 Korea Telecom	`3.56ms` from Seoul, KR
210.99.49.56	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`29.29ms` from Seoul, KR
210.99.81.5	AS4766 Korea Telecom	`1.59ms` from Seoul, KR
210.99.124.1	AS4766 Korea Telecom	`11.46ms` from Seoul, KR
210.99.25.2	AS17841 NATIONAL INFORMATION RESOURCES SERVICE	`8.32ms` from Seoul, KR
210.99.122.146	AS4766 Korea Telecom	`2.49ms` 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
212.205.34.64	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.52ms` from Athens, GR
175.17.181.192	AS4837 CHINA UNICOM China169 Backbone	`3.33ms` from Changchun, CN
117.255.146.112	AS9829 National Internet Backbone	`7.23ms` from Delhi, IN
51.195.23.16	AS16276 OVH SAS	`0.19ms` from Frankfurt am Main, DE
189.198.130.208	AS13999 Mega Cable, S.A. de C.V.	`0.51ms` from Guadalajara, MX
213.246.135.16	AS8586 TalkTalk Communications Limited	`0.65ms` from London, GB
212.158.152.48	AS25248 RADIOKOMUNIKACE a.s.	`5.46ms` from Prague, CZ
179.249.52.0	AS26615 TIM S/A	`7.40ms` from Rio de Janeiro, BR
125.136.111.128	AS4766 Korea Telecom	`5.11ms` from Seoul, KR
79.103.168.160	AS1241 Forthnet	`9.98ms` from Sofia, BG
126.36.97.96	AS17676 SoftBank Corp.	`4.00ms` from Tokyo, JP
124.161.145.240	AS4837 CHINA UNICOM China169 Backbone	`9.15ms` from Chengdu, CN
122.130.52.96	AS2518 BIGLOBE Inc.	`9.38ms` from Osaka, JP
44.207.78.16	AS14618 Amazon.com, Inc.	`0.14ms` from Reston, US
138.117.155.240	AS264234 GLOBAL SOLUCOES EM TECNOLOGIA E TELECOM LTDA-ME	`11.67ms` from Rio de Janeiro, BR
114.203.183.160	AS9318 SK Broadband Co Ltd	`7.89ms` from Seoul, KR
43.143.5.224	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.32ms` from Shanghai, CN
118.165.150.112	AS3462 Data Communication Business Group	`2.83ms` from Taipei, TW
151.101.18.80	AS54113 Fastly, Inc.	`0.18ms` from Atlanta, US
161.47.83.224	AS19994 Rackspace Hosting	`1.40ms` from Chicago, US
18.201.81.80	AS16509 Amazon.com, Inc.	`0.53ms` from Dublin, IE
91.36.29.64	AS3320 Deutsche Telekom AG	`4.37ms` from Duesseldorf, DE
14.244.6.96	AS45899 VNPT Corp	`4.27ms` from Hanoi, VN
88.1.245.176	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.78ms` from Madrid, ES
181.214.127.128	AS9009 M247 Europe SRL	`0.44ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 -f2 -m15 210.99.53.221

traceroute to 210.99.53.221 (210.99.53.221): 15 hops max, 52 byte packets

2 [] 206.81.81.160 14.86 ms

3 *

4 *

5 *

6 [AS9318] 39.120.253.82 133.276 ms

7 *

8 *

9 *

10 *

11 [AS17841] 210.103.83.114 142.46 ms

12 [AS17841] 210.103.82.202 139.61 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Calgary, CA

On October 30th 2025

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