221.154.86.0/24

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Parent Range	221.144.0.0/12
Registry	KRNIC
ID	221.154.86.0-221.154.86.255

WHOIS Details

inetnum:            221.154.86.0 - 221.154.86.255
descr:              Inhagongeopjeonmundaehak
network-type:       CUSTOMER
address:            Yonghyeon-Dong Michuhol-Gu Incheongwangyeok-Si
zip-code:           402020
created:            2018-09-12
admin:              GENERATED-KRNIC-IP-MANAGER-KORNETIP
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-KORNETIP
person:             IP Manager
name:               IP Manager
phone:              +82-2-500-6630
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 221.154.86.0/24

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS152214	Korea Telecom	1,048,576
221.144.0.0/12	AS152232	Korea Telecom	1,048,576
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576

Nearby Ranges

BGP prefixes that overlap with 221.154.0.0/16

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS152214	Korea Telecom	1,048,576
221.144.0.0/12	AS152232	Korea Telecom	1,048,576
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576
221.154.90.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.84.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.83.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.87.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.85.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.82.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.88.0/24	AS4766	Inhagongeopjeonmundaehak	256
221.154.89.0/24	AS4766	Inhagongeopjeonmundaehak	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
152.3.101.24	AS13371 Duke University	`11.02ms` from Atlanta, US
120.11.48.216	AS4837 CHINA UNICOM China169 Backbone	`6.29ms` from Beijing, CN
170.63.93.24	AS6527 Commonwealth of Massachusetts	`4.99ms` from Boston, US
78.98.132.152	AS6855 Slovak Telekom, a.s.	`7.05ms` from Bratislava, SK
62.235.238.40	AS5432 Proximus NV	`1.34ms` from Brussels, BE
73.176.32.24	AS7922 Comcast Cable Communications, LLC	`10.62ms` from Chicago, US
185.5.26.24	AS8560 IONOS SE	`0.53ms` from Frankfurt am Main, DE
213.23.19.120	AS3209 Vodafone GmbH	`0.88ms` from Hamburg, DE
171.247.187.120	AS7552 Viettel Group	`1.02ms` from Ho Chi Minh City, VN
88.233.173.136	AS9121 Turk Telekomunikasyon Anonim Sirketi	`1.72ms` from Istanbul, TR
74.89.10.72	AS6128 Cablevision Systems Corp.	`6.93ms` from New York City, US
178.186.215.136	AS12389 PJSC Rostelecom	`5.35ms` from Novosibirsk, RU
84.160.28.248	AS3320 Deutsche Telekom AG	`4.89ms` from Nuernberg, DE
106.205.115.104	AS24560 Bharti Airtel Ltd., Telemedia Services	`10.64ms` from Saint Thomas Mount, IN
186.6.93.120	AS6400 Compañía Dominicana de Teléfonos S. A.	`3.12ms` from Santo Domingo, DO
179.193.114.24	AS26599 TELEFÔNICA BRASIL S.A	`3.35ms` from Sao Paulo, BR
218.25.69.168	AS4837 CHINA UNICOM China169 Backbone	`2.08ms` from Tieling, CN
222.228.137.88	AS2519 ARTERIA Networks Corporation	`2.61ms` from Tokyo, JP
99.254.151.136	AS812 Rogers Communications Canada Inc.	`4.65ms` from Toronto, CA
93.143.64.200	AS5391 Hrvatski Telekom d.d.	`11.75ms` from Zagreb, HR
223.205.20.152	AS45758 Triple T Broadband Public Company Limited	`4.06ms` from Bangkok, TH
122.142.167.104	AS4837 CHINA UNICOM China169 Backbone	`5.85ms` from Changchun, CN
3.140.127.120	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
34.185.194.152	AS396982 Google LLC	`0.10ms` from Frankfurt am Main, DE
91.156.113.120	AS719 Elisa Oyj	`0.70ms` from Helsinki, FI

Traceroute

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

traceroute -a -n -q1 -m9 221.154.86.181

traceroute to 221.154.86.181 (221.154.86.181): 9 hops max, 52 byte packets

1 [AS15169] 172.253.64.138 1.166 ms

2 *

3 *

4 [AS4766] 112.174.56.202 2.662 ms

5 *

6 [AS4766] 121.172.172.62 1.921 ms

7 *

8 *

9 *

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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