221.157.100.0/22

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	221.157.100.0-221.157.100.255

WHOIS Details

inetnum:            221.157.100.0 - 221.157.100.255
descr:              Gyemyeongmunhwadaehakgyojang
network-type:       CUSTOMER
address:            Sindang-Dong Dalseo-Gu Daegugwangyeok-Si
zip-code:           704-200
created:            2015-03-17
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 221.157.100.0/22

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS152214	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 221.157.0.0/16

Range	ASN	Company	Num of IPs
221.144.0.0/12	AS152214	Korea Telecom	1,048,576
221.144.0.0/12	AS4766	Korea Telecom	1,048,576
221.144.0.0/12	AS9856	Korea Telecom	1,048,576
221.157.116.0/24	AS4766	Gyemyeongmunhwadaehakgyojang	256
221.157.126.0/24	AS4766	Gyeongbukgwahakdaehakgyo	256
221.157.127.0/24	AS4766	Gyeongbukgwahakdaehakgyo	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
149.143.88.150	AS15435 DELTA Fiber Nederland B.V.	`2.59ms` from Amsterdam, NL
173.94.159.54	AS11426 Charter Communications Inc	`13.74ms` from Ashburn, US
101.39.18.182	AS4847 China Networks Inter-Exchange	`4.83ms` from Beijing, CN
98.227.100.70	AS7922 Comcast Cable Communications, LLC	`8.62ms` from Chicago, US
34.69.47.150	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
122.15.23.230	AS55410 Vodafone Idea Ltd	`0.97ms` from Delhi, IN
68.32.45.150	AS7922 Comcast Cable Communications, LLC	`7.92ms` from Flint, US
90.11.153.6	AS3215 Orange S.A.	`6.11ms` from Frankfurt am Main, DE
79.147.178.86	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.50ms` from Madrid, ES
181.128.175.6	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`1.68ms` from Medellin, CO
73.108.97.22	AS7922 Comcast Cable Communications, LLC	`11.93ms` from Orlando, US
27.213.99.166	AS4837 CHINA UNICOM China169 Backbone	`8.19ms` from Qingdao, CN
83.99.244.54	AS24651 JSC BALTICOM	`0.62ms` from Riga, LV
181.110.56.118	AS7303 Telecom Argentina S.A.	`1.16ms` from Rosario, AR
201.105.225.214	AS8151 UNINET	`3.86ms` from Santiago de Queretaro, MX
177.64.187.102	AS28573 Claro NXT Telecomunicacoes Ltda	`10.13ms` from Sao Paulo, BR
173.181.35.166	AS852 TELUS Communications Inc.	`6.15ms` from Seattle, US
89.160.45.6	AS29518 Bredband2 AB	`0.70ms` from Stockholm, SE
95.86.108.246	AS42925 Internet Rimon LTD	`0.33ms` from Tel Aviv, IL
35.78.176.86	AS16509 Amazon.com, Inc.	`1.17ms` from Tokyo, JP
46.207.84.118	AS8447 A1 Telekom Austria AG	`7.04ms` from Vienna, AT
89.190.99.102	AS41228 UAB Barbamia kirgudu	`1.00ms` from Vilnius, LT
109.196.226.54	AS43420 Eltronik Sp. z o.o.	`5.76ms` from Warsaw, PL
77.75.112.6	AS42917 Staempfli AG	`4.25ms` from Zuerich, CH
191.220.52.22	AS8167 V tal	`19.01ms` from Brasilia, BR

Traceroute

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

traceroute -a -n -q1 -m11 221.157.100.230

traceroute to 221.157.100.230 (221.157.100.230): 11 hops max, 52 byte packets

1 [AS15169] 66.249.94.178 102.522 ms

2 [AS15169] 142.251.250.92 105.74 ms

3 *

4 [AS4766] 112.174.84.69 203.823 ms

5 [AS4766] 112.174.48.1 205.446 ms

6 *

7 *

8 [AS4766] 121.150.184.10 206.724 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On December 6th 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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