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 35 domain names hosted across 25 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.net	6
211.56.68.12	oilbankbiz.co.kr	3
211.56.77.181	cashmallow.jp	2
211.56.65.60	siwonedu.co.kr	2
211.56.77.49	ieumtax.co.kr	2
211.56.68.13	oilbankcard.kr	2
211.56.69.210	hyundaicosmo.com	1
211.56.65.69	sjwcorp.kr	1
211.56.68.48	oilbankpush.co.kr	1
211.56.67.74	rent-all.co.kr	1
211.56.88.40	enpgames.com	1
211.56.66.21	staremit.com	1
211.56.89.162	enpgames.co.kr	1
211.56.76.10	bgfcu.com	1
211.56.88.84	cerpass.co.kr	1
211.56.67.201	ictis.kr	1
211.56.65.64	siwonlab.com	1
211.56.68.124	hyundailubricant.co.kr	1
211.56.88.43	wdstudio.co.kr	1
211.56.89.164	pupugame.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

1,460 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.56.69.109	AS4766 Korea Telecom	`1.38ms` from Seoul, KR
211.56.68.186	AS4766 Korea Telecom	`1.09ms` from Seoul, KR
211.56.77.135	AS4766 Korea Telecom	`0.98ms` from Seoul, KR
211.56.64.137	AS4766 Korea Telecom	`0.80ms` from Seoul, KR
211.56.72.34	AS4766 Korea Telecom	`0.93ms` from Seoul, KR
211.56.65.184	AS4766 Korea Telecom	`0.72ms` from Seoul, KR
211.56.66.188	AS4766 Korea Telecom	`0.80ms` from Seoul, KR
211.56.67.18	AS4766 Korea Telecom	`0.75ms` from Seoul, KR
211.56.76.170	AS4766 Korea Telecom	`0.95ms` from Seoul, KR
211.56.70.70	AS4766 Korea Telecom	`1.01ms` from Seoul, KR
211.56.79.2	AS4766 Korea Telecom	`1.00ms` from Seoul, KR
211.56.104.127	AS4766 Korea Telecom	`2.41ms` from Seoul, KR
211.56.106.70	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
211.56.98.201	AS4766 Korea Telecom	`1.39ms` from Incheon, KR
211.56.94.166	AS4766 Korea Telecom	`0.63ms` from Seoul, KR
211.56.89.140	AS4766 Korea Telecom	`0.91ms` from Seoul, KR
211.56.95.225	AS4766 Korea Telecom	`0.64ms` from Seoul, KR
211.56.93.107	AS4766 Korea Telecom	`0.63ms` from Seoul, KR
211.56.105.1	AS4766 Korea Telecom	`2.68ms` from Seoul, KR
211.56.107.9	AS4766 Korea Telecom	`0.92ms` from Seoul, KR
211.56.99.23	AS4766 Korea Telecom	`0.63ms` from Seoul, KR
211.56.124.141	AS4766 Korea Telecom	`0.78ms` from Seoul, KR
211.56.92.237	AS4766 Korea Telecom	`0.63ms` from Seoul, KR
211.56.88.188	AS4766 Korea Telecom	`1.02ms` 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
218.12.193.66	AS4837 CHINA UNICOM China169 Backbone	`11.76ms` from Beijing, CN
217.75.70.2	AS5578 SWAN, a.s.	`0.13ms` from Bratislava, SK
96.10.42.146	AS11426 Charter Communications Inc	`0.48ms` from Charlotte, US
177.130.203.114	AS28270 Alares_Internet	`1.08ms` from Fortaleza, BR
218.21.154.226	AS4837 CHINA UNICOM China169 Backbone	`4.75ms` from Hohhot, CN
41.135.22.146	AS20011 Dimension Data	`1.75ms` from Johannesburg, ZA
199.188.204.18	AS22612 Namecheap, Inc.	`9.71ms` from Los Angeles, US
103.170.18.18	AS142581 Mambulao Cable Television	`5.99ms` from Manila, PH
12.212.34.66	AS7018 AT&T Enterprises, LLC	`3.38ms` from Miami, US
79.20.32.18	AS3269 Telecom Italia S.p.A.	`4.65ms` from Milan, IT
189.32.148.130	AS28573 Claro NXT Telecomunicacoes Ltda	`3.69ms` from Novo Hamburgo, BR
195.221.150.18	AS2200 Renater	`9.75ms` from Paris, FR
31.197.213.178	AS3269 Telecom Italia S.p.A.	`8.72ms` from Rome, IT
87.7.87.178	AS3269 Telecom Italia S.p.A.	`7.93ms` from Rome, IT
221.159.172.2	AS4766 Korea Telecom	`4.26ms` from Seoul, KR
14.38.29.178	AS4766 Korea Telecom	`1.22ms` from Seoul, KR
65.39.133.2	AS13768 Aptum Technologies	`0.29ms` from Toronto, CA
202.74.241.2	AS24323 aamra networks limited,	`0.43ms` from Dhaka, BD
91.25.171.162	AS3320 Deutsche Telekom AG	`1.17ms` from Duesseldorf, DE
154.21.162.2	AS133527 HuaBo Technology International Limited	`2.31ms` from Hong Kong, HK
72.177.232.178	AS11427 Charter Communications Inc	`8.14ms` from Houston, US
39.46.11.98	AS17557 Pakistan Telecommunication Company Limited	`2.72ms` from Lahore, PK
60.185.46.98	AS4134 CHINANET-BACKBONE	`8.97ms` from Nanchang, CN
89.87.215.98	AS5410 Bouygues Telecom SA	`4.72ms` from Paris, FR
13.217.210.114	AS14618 Amazon.com, Inc.	`0.61ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -m11 211.56.69.51

traceroute to 211.56.69.51 (211.56.69.51): 11 hops max, 52 byte packets

1 [AS15169] 74.125.37.114 99.931 ms

2 *

3 [AS4766] 112.174.84.142 125.169 ms

4 *

5 *

6 [AS4766] 112.191.121.79 137.202 ms

7 [AS4766] 112.191.121.155 135.144 ms

8 [AS4766] 211.56.67.26 133.364 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On February 7th 2026

What are IP address ranges?

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