210.91.0.0/16

AS4766 · Korea Telecom

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Summary

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

WHOIS Details

inetnum:        210.91.0.0 - 210.91.255.255
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 114 domain names hosted across 75 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
210.91.51.215	iforum.biz	5
210.91.154.173	gbwork.kr	5
210.91.194.2	jjan.co.kr	5
210.91.75.241	plasposervice.co.kr	5
210.91.226.6	lightronjp.com	4
210.91.154.142	data101.co.kr	4
210.91.124.204	hanilsteel.kr	4
210.91.5.220	sejongcenter.com	4
210.91.153.67	swdream.or.kr	2
210.91.141.114	advanceseg.co.kr	2
210.91.34.201	smarcomwebgfc.com	2
210.91.35.5	iamstudy.kr	2
210.91.5.221	sejongpac.kr	2
210.91.44.112	aquerytool.com	2
210.91.154.186	visitdaegu.or.kr	2
210.91.217.3	cjsisul.or.kr	2
210.91.148.176	novasoft.co.kr	2
210.91.24.98	rootall.org	2
210.91.40.118	31878.com	2
210.91.59.80	dtdesigner.co.kr	2

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

26,112 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.91.210.241	AS4766 Korea Telecom	`4.14ms` from Seoul, KR
210.91.147.144	AS4766 Korea Telecom	`5.43ms` from Seoul, KR
210.91.238.32	AS4766 Korea Telecom	`3.61ms` from Seoul, KR
210.91.216.42	AS4766 Korea Telecom	`3.10ms` from Seoul, KR
210.91.127.129	AS4766 Korea Telecom	`4.12ms` from Seoul, KR
210.91.224.17	AS4766 Korea Telecom	`3.19ms` from Seoul, KR
210.91.248.159	AS4766 Korea Telecom	`4.54ms` from Seoul, KR
210.91.192.238	AS4766 Korea Telecom	`4.64ms` from Seoul, KR
210.91.121.82	AS4766 Korea Telecom	`1.55ms` from Seoul, KR
210.91.120.49	AS4766 Korea Telecom	`1.82ms` from Seoul, KR
210.91.249.94	AS4766 Korea Telecom	`4.06ms` from Seoul, KR
210.91.247.202	AS4766 Korea Telecom	`3.28ms` from Seoul, KR
210.91.198.231	AS4766 Korea Telecom	`5.69ms` from Seoul, KR
210.91.141.157	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
210.91.187.9	AS4766 Korea Telecom	`6.42ms` from Seoul, KR
210.91.172.151	AS4766 Korea Telecom	`7.12ms` from Seoul, KR
210.91.173.139	AS4766 Korea Telecom	`6.96ms` from Seoul, KR
210.91.119.57	AS4766 Korea Telecom	`1.21ms` from Seoul, KR
210.91.227.161	AS4766 Korea Telecom	`3.26ms` from Seoul, KR
210.91.140.6	AS4766 Korea Telecom	`4.70ms` from Seoul, KR
210.91.225.161	AS4766 Korea Telecom	`3.33ms` from Seoul, KR
210.91.253.254	AS4766 Korea Telecom	`4.83ms` from Seoul, KR
210.91.132.69	AS4766 Korea Telecom	`6.21ms` from Seoul, KR
210.91.194.52	AS4766 Korea Telecom	`4.17ms` from Seoul, KR
210.91.208.97	AS4766 Korea Telecom	`4.45ms` 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
97.129.176.0	AS6167 Verizon Business	`17.69ms` from Atlanta, US
24.135.111.192	AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.	`6.56ms` from Belgrade, RS
154.193.154.16	AS200373 3xK Tech GmbH	`0.36ms` from Berlin, DE
172.73.249.128	AS11426 Charter Communications Inc	`10.63ms` from Charlotte, US
18.68.128.48	AS16509 Amazon.com, Inc.	`0.36ms` from Chennai, IN
173.90.127.32	AS10796 Charter Communications Inc	`19.07ms` from Chicago, US
12.188.7.0	AS7018 AT&T Enterprises, LLC	`1.51ms` from Chicago, US
69.95.138.0	AS7029 Windstream Communications LLC	`8.40ms` from Chicago, US
106.35.197.64	AS4134 CHINANET-BACKBONE	`12.17ms` from Hohhot, CN
45.164.181.192	AS268636 Netway soluções em redes de acesso e comunicação l	`3.78ms` from Joao Pessoa, BR
37.152.237.16	AS6871 Plusnet	`2.24ms` from London, GB
47.229.243.48	AS20115 Charter Communications LLC	`2.47ms` from Los Angeles, US
92.17.160.208	AS13285 TalkTalk Communications Limited	`2.93ms` from Manchester, GB
75.220.117.80	AS6167 Verizon Business	`9.60ms` from Miami, US
129.146.156.96	AS31898 Oracle Corporation	`0.16ms` from Phoenix, US
44.196.64.208	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
98.247.174.48	AS7922 Comcast Cable Communications, LLC	`1.12ms` from Seattle, US
58.140.139.0	AS10036 DLIVE	`2.10ms` from Seoul, KR
49.166.221.16	AS17858 LG POWERCOMM	`2.10ms` from Seoul, KR
35.185.204.208	AS396982 Google LLC	`0.15ms` from The Dalles, US
122.212.59.64	AS17506 ARTERIA Networks Corporation	`1.17ms` from Tokyo, JP
109.219.79.0	AS3215 Orange S.A.	`8.86ms` from Aubervilliers, FR
200.244.215.128	AS4230 CLARO S.A.	`9.81ms` from Brasilia, BR
45.241.157.64	AS24863 Link Egypt (Link.NET)	`10.16ms` from Cairo, EG
209.252.23.48	AS7029 Windstream Communications LLC	`0.55ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f9 210.91.27.190

traceroute to 210.91.27.190 (210.91.27.190): 64 hops max, 52 byte packets

9 [AS4766] 210.91.27.190 1.576 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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