221.149.240.0/22

AS131842 · Office of the president

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Summary

Country	South Korea
Domain	kt.com
ASN	AS131842
Parent Range	221.144.0.0/12
Registry	KRNIC
ID	221.149.240.0-221.149.241.255

WHOIS Details

inetnum:            221.149.240.0 - 221.149.241.255
descr:              Korea Telecom
network-type:       CUSTOMER
address:            90 Buljeongro Bundang-Gu Seongnam-Si Gyeonggi-Do
zip-code:           13606
created:            2026-02-02
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 221.149.240.0/22

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 221.149.0.0/16

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
221.149.141.0/24	AS10185	(ju)hanaeunhaeng	256
221.149.230.0/24	AS45360	SKbrodeudeu(ju)	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
221.149.241.13	bmail.or.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

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

IP Address	ASN	Details
221.149.240.4	AS131842 Office of the president	`0.99ms` 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
154.249.83.86	AS36947 Telecom Algeria	`12.03ms` from Algiers, DZ
68.220.9.150	AS8075 Microsoft Corporation	`0.28ms` from Boydton, US
212.26.184.230	AS5578 SWAN, a.s.	`1.57ms` from Bratislava, SK
161.97.243.86	AS393552 Longmont Power & Communications	`2.44ms` from Denver, US
101.32.58.246	AS132203 Tencent Building, Kejizhongyi Avenue	`0.41ms` from Hong Kong, HK
47.90.14.86	AS45102 Alibaba (US) Technology Co., Ltd.	`0.72ms` from Hong Kong, HK
178.198.158.38	AS3303 Swisscom (Switzerland) Ltd	`0.75ms` from Lausanne, CH
90.200.212.150	AS5607 Sky UK Limited	`8.09ms` from London, GB
92.29.143.38	AS13285 TalkTalk Communications Limited	`2.30ms` from Manchester, GB
98.48.227.54	AS7922 Comcast Cable Communications, LLC	`15.18ms` from Orlando, US
60.141.107.134	AS17676 SoftBank Corp.	`11.92ms` from Osaka, JP
20.78.136.118	AS8075 Microsoft Corporation	`0.17ms` from Osaka, JP
79.57.216.150	AS3269 Telecom Italia S.p.A.	`4.92ms` from Rome, IT
68.65.80.54	AS14265 TPx Communications	`0.21ms` from Sacramento, US
203.247.190.182	AS1237 KISTI	`8.04ms` from Seoul, KR
13.60.215.54	AS16509 Amazon.com, Inc.	`1.09ms` from Stockholm, SE
137.117.135.198	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
161.200.8.38	AS3839 Chulalongkorn University	`1.79ms` from Bangkok, TH
82.144.164.182	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`5.48ms` from Budapest, HU
175.9.72.6	AS4134 CHINANET-BACKBONE	`3.24ms` from Changsha, CN
134.161.11.6	AS22594 University of Northern Iowa	`7.14ms` from Chicago, US
79.223.64.86	AS3320 Deutsche Telekom AG	`8.36ms` from Frankfurt am Main, DE
159.122.110.166	AS36351 IBM Cloud	`0.69ms` from Frankfurt am Main, DE
83.14.252.118	AS5617 Orange Polska Spolka Akcyjna	`1.86ms` from Gdansk, PL
49.130.147.166	AS17924 SmarTone Mobile Communications Ltd	`12.99ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -m5 221.149.243.139

traceroute to 221.149.243.139 (221.149.243.139): 5 hops max, 52 byte packets

1 [AS174] 193.235.207.1 31.593 ms

2 [AS174] 154.25.2.229 2.497 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Prague, CZ

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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