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

Hosted domains

There are 87 domain names hosted across 41 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	tigerhole.net	16
211.33.130.21	yna.co.kr	13
211.33.140.40	esprendor.co.kr	6
211.33.226.206	poly-midas.info	5
211.33.140.30	kumkangmall.co.kr	4
211.33.224.78	daejeontourism.com	3
211.33.130.227	hellocitizen.global	3
211.33.182.33	firebuyer.net	2
211.33.227.211	shinys88.com	2
211.33.224.104	djmeditour.kr	2
211.33.226.207	ne5.kr	2
211.33.136.92	nicevan.co.kr	1
211.33.224.81	djwinefair.com	1
211.33.203.85	onlydagger.site	1
211.33.136.94	nicevan.co.kr	1
211.33.134.231	litem.biz	1
211.33.151.100	psdev.kr	1
211.33.140.41	brunomagli.co.kr	1
211.33.137.4	dad.co.kr	1
211.33.224.83	dcfair.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

12,491 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.33.147.71	AS4766 Korea Telecom	`1.36ms` from Seoul, KR
211.33.134.110	AS4766 Korea Telecom	`1.13ms` from Seoul, KR
211.33.138.113	AS4766 Korea Telecom	`1.41ms` from Seoul, KR
211.33.151.59	AS4766 Korea Telecom	`1.52ms` from Seoul, KR
211.33.152.158	AS4766 Korea Telecom	`1.66ms` from Seoul, KR
211.33.135.241	AS4766 Korea Telecom	`0.97ms` from Seoul, KR
211.33.129.222	AS4766 Korea Telecom	`1.16ms` from Seoul, KR
211.33.140.254	AS4766 Korea Telecom	`1.45ms` from Seoul, KR
211.33.149.81	AS4766 Korea Telecom	`1.02ms` from Seoul, KR
211.33.128.254	AS4766 Korea Telecom	`1.12ms` from Seoul, KR
211.33.141.161	AS4766 Korea Telecom	`1.06ms` from Seoul, KR
211.33.150.56	AS4766 Korea Telecom	`1.26ms` from Seoul, KR
211.33.137.34	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
211.33.132.126	AS4766 Korea Telecom	`1.11ms` from Seoul, KR
211.33.131.1	AS4766 Korea Telecom	`0.86ms` from Seoul, KR
211.33.133.3	AS4766 Korea Telecom	`1.81ms` from Seoul, KR
211.33.139.150	AS4766 Korea Telecom	`0.98ms` from Seoul, KR
211.33.146.210	AS4766 Korea Telecom	`1.40ms` from Seoul, KR
211.33.136.94	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
211.33.144.44	AS4766 Korea Telecom	`1.35ms` from Seoul, KR
211.33.153.173	AS4766 Korea Telecom	`2.26ms` from Seoul, KR
211.33.145.119	AS4766 Korea Telecom	`2.01ms` from Seoul, KR
211.33.143.222	AS4766 Korea Telecom	`1.27ms` from Seoul, KR
211.33.130.101	AS4766 Korea Telecom	`1.07ms` from Seoul, KR
211.33.158.254	AS4766 Korea Telecom	`1.39ms` 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
134.149.219.177	AS8075 Microsoft Corporation	`0.84ms` from Amsterdam, NL
72.28.248.1	AS11776 Breezeline	`6.36ms` from Ashburn, US
66.37.66.65	AS16942 Citizens Telephone Cooperative	`7.13ms` from Ashburn, US
137.75.94.193	AS3477 National Oceanic and Atmospheric Administration	`3.05ms` from Ashburn, US
24.229.145.1	AS3737 PenTeleData Inc.	`11.43ms` from Ashburn, US
73.12.58.1	AS7922 Comcast Cable Communications, LLC	`9.85ms` from Ashburn, US
181.123.4.1	AS23201 Telecel S.A.	`2.00ms` from Asuncion, PY
45.237.44.33	AS266814 Masternet Telecomunicaciones	`7.44ms` from Asuncion, PY
152.86.20.1	AS55120 Tallahatchie Valley Internet Services, LLC	`11.80ms` from Atlanta, US
68.59.81.1	AS7922 Comcast Cable Communications, LLC	`6.13ms` from Atlanta, US
118.247.231.33	AS4847 China Networks Inter-Exchange	`5.84ms` from Beijing, CN
186.83.64.1	AS10620 Telmex Colombia S.A.	`8.26ms` from Bogota, CO
95.76.7.1	AS12302 Vodafone Romania S.A.	`8.89ms` from Bucharest, RO
181.230.112.1	AS7303 Telecom Argentina S.A.	`2.07ms` from Buenos Aires, AR
199.126.213.1	AS852 TELUS Communications Inc.	`0.95ms` from Calgary, CA
169.1.168.1	AS37611 AFRIHOST SP (PTY) LTD	`2.05ms` from Cape Town, ZA
12.50.135.97	AS7018 AT&T Enterprises, LLC	`5.59ms` from Chicago, US
27.15.196.1	AS4837 CHINA UNICOM China169 Backbone	`1.55ms` from Chongqing, CN
70.118.155.1	AS11427 Charter Communications Inc	`18.63ms` from Dallas, US
184.187.137.1	AS22773 Cox Communications Inc.	`11.99ms` from Dallas, US
69.31.150.129	AS27294 Reserve Long Distance Company, Inc	`13.00ms` from Dallas, US
12.1.62.49	AS7018 AT&T Enterprises, LLC	`5.78ms` from Dallas, US
173.90.240.1	AS10796 Charter Communications Inc	`6.01ms` from Detroit, US
193.120.121.65	AS2110 Enet Communications LIMITED	`1.94ms` from Dublin, IE
162.218.243.1	AS46841 Fork Networking, LLC	`0.68ms` from Fremont, US

Traceroute

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

traceroute -a -n -q1 -f7 211.33.152.73

traceroute to 211.33.152.73 (211.33.152.73): 64 hops max, 52 byte packets

7 [AS4766] 112.174.56.38 1.238 ms

8 *

9 *

10 [AS4766] 211.33.152.73 2.59 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On September 4th 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.

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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