211.33.128.0/17

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        211.33.128.0 - 211.33.255.255
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:        [email protected] 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:         [email protected]
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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:         [email protected]
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected] 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 211.33.0.0/16

Range	ASN	Company	Num of IPs
211.33.0.0/17	AS17857	SK Broadband Co Ltd	32,768
211.33.0.0/17	AS9318	SK Broadband Co Ltd	32,768
211.33.109.0/24	AS17857	SK Broadband Co Ltd	256
211.33.48.0/24	AS17857	SK Broadband Co Ltd	256
211.33.96.0/24	AS17857	SK Broadband Co Ltd	256
211.33.56.0/24	AS9318	SK Broadband Co Ltd	256
211.33.104.0/24	AS17857	SK Broadband Co Ltd	256
211.33.106.0/24	AS17857	SK Broadband Co Ltd	256
211.33.108.0/24	AS17857	SK Broadband Co Ltd	256

Hosted domains

There are 86 domain names hosted across 42 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.33.217.54	bibonglove.co.kr	14
211.33.130.21	yna.co.kr	13
211.33.140.40	renoir.co.kr	6
211.33.226.206	poly-midas.org	5
211.33.140.30	kumkangmall.co.kr	4
211.33.130.227	hellocitizen.global	3
211.33.224.78	djto.kr	3
211.33.224.104	djmeditour.com	2
211.33.182.33	firebuyer.net	2
211.33.227.211	moleaf.co.kr	2
211.33.226.207	neoforce.co.kr	2
211.33.140.41	brunomagli.co.kr	1
211.33.136.72	ennice.co.kr	1
211.33.196.66	83tower.kr	1
211.33.136.104	nmcs.co.kr	1
211.33.149.161	colaiuta.me	1
211.33.180.235	enabletech.io	1
211.33.174.163	highnet.co.kr	1
211.33.247.200	abcotech.co.kr	1
211.33.136.68	nicepos.co.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

12,757 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.33.145.121	AS4766 Korea Telecom	`2.17ms` from Seoul, KR
211.33.135.241	AS4766 Korea Telecom	`0.98ms` from Seoul, KR
211.33.128.254	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
211.33.149.81	AS4766 Korea Telecom	`1.03ms` from Seoul, KR
211.33.150.56	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
211.33.147.98	AS4766 Korea Telecom	`1.36ms` from Seoul, KR
211.33.141.178	AS4766 Korea Telecom	`1.01ms` from Seoul, KR
211.33.140.254	AS4766 Korea Telecom	`1.31ms` from Seoul, KR
211.33.151.68	AS4766 Korea Telecom	`1.38ms` from Seoul, KR
211.33.131.1	AS4766 Korea Telecom	`0.84ms` from Seoul, KR
211.33.144.44	AS4766 Korea Telecom	`1.42ms` from Seoul, KR
211.33.129.222	AS4766 Korea Telecom	`1.06ms` from Seoul, KR
211.33.143.254	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
211.33.146.210	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
211.33.133.117	AS4766 Korea Telecom	`1.89ms` from Seoul, KR
211.33.130.101	AS4766 Korea Telecom	`1.10ms` from Seoul, KR
211.33.153.132	AS4766 Korea Telecom	`2.15ms` from Seoul, KR
211.33.132.94	AS4766 Korea Telecom	`1.09ms` from Seoul, KR
211.33.134.110	AS4766 Korea Telecom	`1.12ms` from Seoul, KR
211.33.137.34	AS4766 Korea Telecom	`1.23ms` from Seoul, KR
211.33.136.193	AS4766 Korea Telecom	`1.26ms` from Seoul, KR
211.33.152.158	AS4766 Korea Telecom	`1.55ms` from Seoul, KR
211.33.138.113	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
211.33.139.127	AS4766 Korea Telecom	`0.93ms` from Seoul, KR
211.33.162.98	AS4766 Korea Telecom	`3.89ms` 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
212.204.152.1	AS33915 Vodafone Libertel B.V.	`4.50ms` from Amsterdam, NL
155.204.0.225	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`2.28ms` from Ashburn, US
76.123.34.1	AS7922 Comcast Cable Communications, LLC	`10.10ms` from Ashburn, US
72.210.23.49	AS22773 Cox Communications Inc.	`15.06ms` from Atlanta, US
120.47.202.225	AS18118 CITIC Networks Management Co.,Ltd.	`11.30ms` from Beijing, CN
154.8.205.17	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.92ms` from Beijing, CN
92.206.210.1	AS16202 Tele Columbus AG	`14.83ms` from Berlin, DE
91.86.216.1	AS47377 Orange Belgium SA	`6.23ms` from Brussels, BE
84.3.216.1	AS5483 Magyar Telekom Plc.	`6.87ms` from Budapest, HU
50.99.114.1	AS852 TELUS Communications Inc.	`1.00ms` from Calgary, CA
122.136.135.241	AS4837 CHINA UNICOM China169 Backbone	`9.45ms` from Changchun, CN
139.206.18.1	AS4134 CHINANET-BACKBONE	`12.69ms` from Chengdu, CN
222.208.18.1	AS4134 CHINANET-BACKBONE	`8.85ms` from Chengdu, CN
96.102.41.145	AS7922 Comcast Cable Communications, LLC	`0.82ms` from Chicago, US
98.223.142.1	AS7922 Comcast Cable Communications, LLC	`0.84ms` from Chicago, US
119.86.208.1	AS4134 CHINANET-BACKBONE	`1.33ms` from Chongqing, CN
125.84.4.1	AS4134 CHINANET-BACKBONE	`1.69ms` from Chongqing, CN
62.135.247.65	AS3292 TDC Holding A/S	`0.80ms` from Copenhagen, DK
173.197.35.129	AS11427 Charter Communications Inc	`12.69ms` from Dallas, US
145.253.121.145	AS3209 Vodafone GmbH	`1.14ms` from Duesseldorf, DE
170.253.120.1	AS36817 MCSNet	`7.47ms` from Edmonton, CA
83.115.87.209	AS3215 Orange S.A.	`11.14ms` from Frankfurt am Main, DE
115.212.135.17	AS4134 CHINANET-BACKBONE	`9.32ms` from Hangzhou, CN
193.163.207.1	AS59651 AS QualityNetwork	`0.61ms` from Helsinki, FI
104.171.238.1	AS135356 CN Care Cyber Cloud Limited	`2.53ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 211.33.208.1

traceroute to 211.33.208.1 (211.33.208.1): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.7 0.07 ms

2 [AS4766] 218.145.32.254 0.568 ms

3 *

4 *

5 *

6 *

7 [AS4766] 211.33.208.1 6.677 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 28th 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.

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