61.72.126.0/23

AS18031 · Sangmyung University

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Summary

Country	South Korea
Domain	kt.com
ASN	AS18031
Registry	KRNIC
ID	61.72.126.0-61.72.127.255

WHOIS Details

inetnum:            61.72.126.0 - 61.72.127.255
descr:              Korea Telecom
network-type:       CUSTOMER
address:            90 Buljeongro Bundang-Gu Seongnam-Si Gyeonggi-Do
zip-code:           13606
created:            2024-02-06
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:             [email protected]
source:             KRNIC

Nearby Ranges

BGP prefixes that overlap with 61.72.0.0/16

Range	ASN	Company	Num of IPs
61.72.180.0/22	AS4766	KT	1,024
61.72.128.0/23	AS18031	Korea Telecom	512
61.72.226.0/24	AS17841	Korea Telecom	256
61.72.46.0/24	AS152221	Yeonhapseutibi	256
61.72.238.0/24	AS17841	Korea Telecom	256
61.72.230.0/24	AS17841	Korea Telecom	256
61.72.224.0/24	AS17841	KT	256
61.72.225.0/24	AS17841	Korea Telecom	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
61.72.126.30	AS18031 Sangmyung University	`3.75ms` from Seoul, KR
61.72.127.129	AS18031 Sangmyung University	`2.71ms` 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
45.120.164.23	AS59029 People.Cn CO.,LTD	`3.50ms` from Beijing, CN
46.40.69.7	AS43205 Vivacom Bulgaria EAD	`11.59ms` from Budapest, HU
3.18.233.103	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
34.172.52.199	AS396982 Google LLC	`0.09ms` from Council Bluffs, US
87.37.150.23	AS1213 ASIERA TECHNOLOGY SERVICES CLG	`7.75ms` from Dublin, IE
45.220.150.7	AS32653 eNetworks cc	`0.61ms` from Durban, ZA
113.101.25.103	AS4134 CHINANET-BACKBONE	`4.33ms` from Guangzhou, CN
42.53.174.23	AS4837 CHINA UNICOM China169 Backbone	`9.23ms` from Liaoyang, CN
171.37.243.71	AS4837 CHINA UNICOM China169 Backbone	`6.78ms` from Nanning, CN
76.104.183.39	AS7922 Comcast Cable Communications, LLC	`7.71ms` from Seattle, US
20.5.152.135	AS8075 Microsoft Corporation	`0.93ms` from Sydney, AU
118.237.29.103	AS2527 Sony Network Communications Inc.	`1.69ms` from Tokyo, JP
109.120.196.7	AS8866 Vivacom Bulgaria EAD	`3.67ms` from Varna, BG
80.106.105.71	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`6.60ms` from Athens, GR
112.18.207.215	AS9808 China Mobile Communications Group Co., Ltd.	`4.11ms` from Chengdu, CN
78.78.181.55	AS3301 Telia Company AB	`16.26ms` from Copenhagen, DK
14.166.160.87	AS45899 VNPT Corp	`3.09ms` from Hanoi, VN
43.157.240.167	AS132203 Tencent Building, Kejizhongyi Avenue	`0.89ms` from Jakarta, ID
37.57.150.103	AS13188 CONTENT DELIVERY NETWORK LTD	`6.80ms` from Kyiv, UA
208.90.124.135	AS11767 Quality Technology Services, LLC	`0.66ms` from Miami, US
84.142.151.135	AS3320 Deutsche Telekom AG	`9.54ms` from Nuernberg, DE
152.252.113.215	AS10429 TELEFÔNICA BRASIL S.A	`2.26ms` from Sao Paulo, BR
20.124.196.87	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
199.59.72.7	AS27631 PANGAEA	`5.58ms` from Atlanta, US
120.53.123.231	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.73ms` from Beijing, CN

Traceroute

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

traceroute -a -n -q1 -m6 61.72.126.31

traceroute to 61.72.126.31 (61.72.126.31): 6 hops max, 52 byte packets

1 [AS50979] 45.128.151.1 0.216 ms

2 *

3 [AS9002] 87.245.232.102 6.429 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Riga, LV

On December 20th 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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