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:        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 211.33.0.0/16

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 94 domain names hosted across 43 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
211.33.130.21	yna.co.kr	15
211.33.217.54	rainbowch.or.kr	14
211.33.130.197	zorvexiality.shop	6
211.33.140.40	esprendor.com	6
211.33.226.206	boomclass.co.kr	5
211.33.140.30	kumkangmall.com	4
211.33.224.78	daejeontourism.com	3
211.33.224.104	djmeditour.kr	2
211.33.130.227	unescoapceiu.or.kr	2
211.33.182.33	firebuyer.net	2
211.33.226.207	ne5.kr	2
211.33.227.211	moleaf.co.kr	2
211.33.134.231	litem.biz	1
211.33.130.41	yonhap.kr	1
211.33.136.72	ennice.co.kr	1
211.33.247.200	abcotech.co.kr	1
211.33.159.82	bucheonh.com	1
211.33.224.122	asiawinetrophy.com	1
211.33.182.26	firemuseum.or.kr	1
211.33.224.81	djwinefair.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

12,849 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.33.254.58	AS4766 Korea Telecom	`10.12ms` from Seoul, KR
211.33.185.32	AS4766 Korea Telecom	`1.50ms` from Seoul, KR
211.33.223.175	AS4766 Korea Telecom	`8.45ms` from Seoul, KR
211.33.250.1	AS4766 Korea Telecom	`3.17ms` from Seoul, KR
211.33.145.121	AS4766 Korea Telecom	`2.15ms` from Seoul, KR
211.33.146.210	AS4766 Korea Telecom	`1.23ms` from Seoul, KR
211.33.209.182	AS4766 Korea Telecom	`7.01ms` from Seoul, KR
211.33.192.164	AS4766 Korea Telecom	`6.23ms` from Seoul, KR
211.33.253.98	AS4766 Korea Telecom	`4.19ms` from Incheon, KR
211.33.226.177	AS4766 Korea Telecom	`3.01ms` from Seoul, KR
211.33.207.254	AS4766 Korea Telecom	`6.00ms` from Seoul, KR
211.33.129.222	AS4766 Korea Telecom	`1.08ms` from Seoul, KR
211.33.151.21	AS4766 Korea Telecom	`0.71ms` from Incheon, KR
211.33.161.129	AS4766 Korea Telecom	`2.97ms` from Seoul, KR
211.33.220.151	AS4766 Korea Telecom	`6.66ms` from Seoul, KR
211.33.163.9	AS4766 Korea Telecom	`2.84ms` from Seoul, KR
211.33.236.54	AS4766 Korea Telecom	`5.42ms` from Seoul, KR
211.33.248.61	AS4766 Korea Telecom	`2.97ms` from Seoul, KR
211.33.204.1	AS4766 Korea Telecom	`4.97ms` from Seoul, KR
211.33.179.46	AS4766 Korea Telecom	`1.08ms` from Seoul, KR
211.33.140.254	AS4766 Korea Telecom	`1.37ms` from Seoul, KR
211.33.224.122	AS4766 Korea Telecom	`3.05ms` from Seoul, KR
211.33.237.69	AS4766 Korea Telecom	`5.18ms` from Seoul, KR
211.33.241.82	AS4766 Korea Telecom	`6.14ms` from Seoul, KR
211.33.150.209	AS4766 Korea Telecom	`0.81ms` from Incheon, 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
217.100.111.161	AS33915 Vodafone Libertel B.V.	`0.49ms` from Amsterdam, NL
84.25.209.1	AS33915 Vodafone Libertel B.V.	`3.05ms` from Amsterdam, NL
72.28.248.1	AS11776 Breezeline	`6.41ms` from Ashburn, US
173.188.152.1	AS7029 Windstream Communications LLC	`5.17ms` from Atlanta, US
27.145.41.1	AS17552 True Online	`1.66ms` from Bangkok, TH
180.78.67.209	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`8.76ms` from Beijing, CN
223.30.128.33	AS9583 Sify Limited	`8.80ms` from Bengaluru, IN
52.43.213.241	AS16509 Amazon.com, Inc.	`0.21ms` from Boardman, US
190.96.217.1	AS22368 TELEBUCARAMANGA S.A. E.S.P.	`7.13ms` from Bogota, CO
82.210.171.1	AS12302 Vodafone Romania S.A.	`1.80ms` from Bucharest, RO
95.76.7.1	AS12302 Vodafone Romania S.A.	`8.68ms` from Bucharest, RO
181.20.82.241	AS22927 Telefonica de Argentina	`2.32ms` from Buenos Aires, AR
203.193.135.193	AS7633 Software Technology Parks of India - Bangalore	`7.64ms` from Chennai, IN
125.20.59.225	AS9498 BHARTI Airtel Ltd.	`1.22ms` from Chennai, IN
74.222.58.225	AS16399 First Communications LLC	`1.30ms` from Chicago, US
220.192.186.1	AS4837 CHINA UNICOM China169 Backbone	`2.43ms` from Chongqing, CN
64.255.174.1	AS395662 OzarksGo, LLC	`8.66ms` from Dallas, US
125.21.116.97	AS9498 BHARTI Airtel Ltd.	`17.91ms` from Delhi, IN
117.220.22.225	AS9829 National Internet Backbone	`12.63ms` from Delhi, IN
172.219.252.1	AS852 TELUS Communications Inc.	`1.14ms` from Edmonton, CA
36.250.212.1	AS4837 CHINA UNICOM China169 Backbone	`10.74ms` from Fuzhou, CN
213.115.251.145	AS8434 Telenor Sverige AB	`0.52ms` from Goeteborg, SE
119.145.182.33	AS4134 CHINANET-BACKBONE	`2.65ms` from Guangzhou, CN
14.113.201.1	AS4134 CHINANET-BACKBONE	`2.83ms` from Guangzhou, CN
190.155.113.1	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`2.00ms` from Guayaquil, EC

Traceroute

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

traceroute -a -n -q1 211.33.240.182

traceroute to 211.33.240.182 (211.33.240.182): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.47 0.204 ms

2 *

3 *

4 *

5 [AS4766] 112.174.18.110 9.958 ms

6 [AS4766] 112.189.225.102 4.568 ms

7 [AS4766] 211.33.240.182 4.903 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 20th 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.

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