211.56.64.0/18

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        211.56.64.0 - 211.56.127.255
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 211.56.0.0/16

Range	ASN	Company	Num of IPs
211.56.128.0/18	AS9457	DREAMLINE CO.	16,384
211.56.192.0/19	AS9848	SEJONG NETWORKS	8,192
211.56.8.0/21	AS4766	BITNET	2,048
211.56.156.0/24	AS38676	Flexnetwork	256
211.56.158.0/24	AS38676	Flexnetwork	256
211.56.160.0/24	AS38676	Flexnetwork	256
211.56.162.0/24	AS38676	Flexnetwork	256
211.56.163.0/24	AS38676	flexnet	256
211.56.170.0/24	AS38676	plexnet	256
211.56.171.0/24	AS38676	plexnet	256
211.56.173.0/24	AS38676	Flexnetwork	256
211.56.201.0/24	AS38676	FLEXNET	256
211.56.202.0/24	AS38676	FLEXNET	256
211.56.203.0/24	AS38676	FLEXNET	256
211.56.204.0/24	AS38676	FLEXNET	256
211.56.205.0/24	AS38676	FLEXNET	256
211.56.133.0/24	AS21859	Zenlayer Networks Korea Ltd	256
211.56.132.0/24	AS21859	Zenlayer Networks Korea Ltd	256
211.56.134.0/24	AS21859	Zenlayer Networks Korea Ltd	256
211.56.131.0/24	AS21859	Zenlayer Networks Korea Ltd	256

Hosted domains

There are 40 domain names hosted across 29 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.56.65.66	siwonschool.com	6
211.56.68.12	oilbankbiz.co.kr	3
211.56.65.60	siwonedu.com	2
211.56.77.181	cashmallow.com	2
211.56.77.49	ieumpay.co.kr	2
211.56.69.150	hyundaichemical.co.kr	2
211.56.68.13	oilbankcard.kr	2
211.56.76.10	bgfcu.com	1
211.56.67.74	rent-all.co.kr	1
211.56.66.87	skyfs.co.kr	1
211.56.66.21	staremit.com	1
211.56.68.48	oilbankpush.co.kr	1
211.56.88.84	cerpass.co.kr	1
211.56.66.250	aistaff.co.kr	1
211.56.89.164	pupugame.com	1
211.56.77.164	crossenf.com	1
211.56.67.201	ictis.kr	1
211.56.69.212	hyundaioci.co.kr	1
211.56.68.124	hyundailubricant.co.kr	1
211.56.88.41	enpv1.com	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

1,448 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.56.65.184	AS4766 Korea Telecom	`0.72ms` from Seoul, KR
211.56.72.22	AS4766 Korea Telecom	`0.95ms` from Seoul, KR
211.56.93.200	AS4766 Korea Telecom	`0.76ms` from Seoul, KR
211.56.67.17	AS4766 Korea Telecom	`0.77ms` from Seoul, KR
211.56.70.44	AS4766 Korea Telecom	`0.73ms` from Seoul, KR
211.56.98.202	AS4766 Korea Telecom	`1.99ms` from Seoul, KR
211.56.88.184	AS4766 Korea Telecom	`0.98ms` from Seoul, KR
211.56.105.1	AS4766 Korea Telecom	`2.94ms` from Seoul, KR
211.56.76.181	AS4766 Korea Telecom	`1.10ms` from Seoul, KR
211.56.94.138	AS4766 Korea Telecom	`0.77ms` from Seoul, KR
211.56.79.131	AS4766 Korea Telecom	`1.16ms` from Seoul, KR
211.56.77.135	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
211.56.104.22	AS4766 Korea Telecom	`2.63ms` from Seoul, KR
211.56.124.134	AS4766 Korea Telecom	`0.82ms` from Seoul, KR
211.56.66.169	AS4766 Korea Telecom	`0.96ms` from Seoul, KR
211.56.92.21	AS4766 Korea Telecom	`0.73ms` from Seoul, KR
211.56.106.107	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
211.56.68.82	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
211.56.89.232	AS4766 Korea Telecom	`0.89ms` from Seoul, KR
211.56.95.252	AS4766 Korea Telecom	`0.70ms` from Seoul, KR
211.56.64.24	AS4766 Korea Telecom	`0.72ms` from Seoul, KR
211.56.69.43	AS4766 Korea Telecom	`1.19ms` from Seoul, KR
211.56.107.4	AS4766 Korea Telecom	`0.92ms` 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
16.145.198.130	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
122.138.213.146	AS4837 CHINA UNICOM China169 Backbone	`7.91ms` from Changchun, CN
135.233.58.98	AS8075 Microsoft Corporation	`0.16ms` from Des Moines, US
2.16.62.114	AS20940 Akamai International B.V.	`0.32ms` from Duesseldorf, DE
179.248.17.50	AS26615 TIM S/A	`10.76ms` from Fortaleza, BR
183.151.127.18	AS4134 CHINANET-BACKBONE	`9.70ms` from Hangzhou, CN
137.97.91.114	AS55836 Reliance Jio Infocomm Limited	`1.59ms` from Hyderabad, IN
79.78.66.226	AS13285 TalkTalk Communications Limited	`3.75ms` from London, GB
80.94.200.130	AS199335 Talk Straight Ltd.	`0.27ms` from London, GB
216.187.59.2	AS11579 LANline Communications Inc	`3.64ms` from New York City, US
24.39.155.226	AS12271 Charter Communications Inc	`1.96ms` from New York City, US
134.202.171.2	AS7029 Windstream Communications LLC	`0.79ms` from New York City, US
178.20.54.2	AS29075 IELO Main Network	`0.22ms` from Paris, FR
90.12.129.98	AS3215 Orange S.A.	`10.03ms` from Paris, FR
193.238.151.82	AS35012 Claranet SAS	`0.54ms` from Paris, FR
31.13.91.34	AS32934 Facebook, Inc.	`0.10ms` from Rio de Janeiro, BR
216.83.159.146	AS5048 FIBERNET Corp.	`2.13ms` from Salt Lake City, US
182.172.248.2	AS10036 DLIVE	`1.02ms` from Seoul, KR
221.157.137.34	AS4766 Korea Telecom	`5.00ms` from Seoul, KR
61.169.129.210	AS4812 China Telecom (Group)	`2.46ms` from Shanghai, CN
220.134.115.210	AS3462 Data Communication Business Group	`2.60ms` from Taipei, TW
208.99.39.18	AS7029 Windstream Communications LLC	`0.89ms` from Ashburn, US
34.78.202.130	AS396982 Google LLC	`0.12ms` from Brussels, BE
84.1.223.226	AS5483 Magyar Telekom Plc.	`1.00ms` from Budapest, HU
45.240.100.34	AS24863 Link Egypt (Link.NET)	`9.22ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 211.56.66.29

traceroute to 211.56.66.29 (211.56.66.29): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.61 0.08 ms

2 *

3 *

4 *

5 *

6 [AS4766] 112.191.121.107 1.306 ms

7 [AS4766] 112.191.116.177 1.264 ms

8 *

9 [AS4766] 211.56.66.29 1.133 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 14th 2025

What are IP address ranges?

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