61.251.72.0/24

AS4766 · Korea Telecom

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Summary

Country	South Korea
Domain	kt.com
ASN	AS4766
Parent Range	61.251.64.0/20
Registry	KRNIC
ID	61.251.72.0-61.251.72.255

WHOIS Details

inetnum:            61.251.72.0 - 61.251.72.255
descr:              KT
network-type:       CUSTOMER
address:            83 Nonhyeonro Seosin-Myeon Seocho-Gu Seoulteukbyeol-Si
zip-code:           06775
created:            2025-09-24
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

Overlapping Ranges

BGP prefixes that contain 61.251.72.0/24

Range	ASN	Company	Num of IPs
61.251.64.0/20	AS4766	Korea Telecom	4,096

Nearby Ranges

BGP prefixes that overlap with 61.251.0.0/16

Range	ASN	Company	Num of IPs
61.251.176.0/20	AS202736	ILINKKOREA	4,096
61.251.64.0/20	AS4766	Korea Telecom	4,096
61.251.96.0/20	AS2914	NTT KOREA	4,096
61.251.176.0/20	AS38676	ILINKKOREA	4,096
61.251.65.0/24	AS4766	KT	256
61.251.66.0/24	AS4766	KT	256
61.251.67.0/24	AS4766	KT	256
61.251.68.0/24	AS4766	KT	256
61.251.69.0/24	AS4766	KT	256
61.251.70.0/24	AS4766	KT	256
61.251.71.0/24	AS4766	KT	256
61.251.73.0/24	AS4766	KT	256
61.251.74.0/24	AS4766	KT	256
61.251.75.0/24	AS4766	KT	256
61.251.76.0/24	AS4766	KT	256
61.251.77.0/24	AS4766	KT	256
61.251.162.0/24	AS10160	KDDI KOREA	256
61.251.78.0/24	AS4766	KT	256
61.251.164.0/24	AS10160	Seowoninfor	256
61.251.166.0/24	AS10160	KDDI KOREA	256
61.251.188.0/24	AS4766	ILINKKOREAS	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

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

IP Address	ASN	Details
61.251.72.149	AS4766 Korea Telecom	`1.00ms` 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
104.154.215.120	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
200.138.82.8	AS8167 V tal	`7.72ms` from Curitiba, BR
119.28.56.120	AS132203 Tencent Building, Kejizhongyi Avenue	`0.36ms` from Hong Kong, HK
89.143.173.8	AS5603 Telekom Slovenije, d.d.	`0.80ms` from Ljubljana, SI
9.235.8.216	AS8075 Microsoft Corporation	`0.19ms` from Milan, IT
126.93.94.40	AS17676 SoftBank Corp.	`3.49ms` from Osaka, JP
153.201.83.136	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.21ms` from Osaka, JP
201.186.31.120	AS14117 Telefonica del Sur S.A.	`15.72ms` from Santiago, CL
115.8.15.200	AS4766 Korea Telecom	`5.60ms` from Seoul, KR
175.205.197.56	AS4766 Korea Telecom	`3.09ms` from Seoul, KR
58.237.146.232	AS9318 SK Broadband Co Ltd	`5.62ms` from Seoul, KR
207.6.161.24	AS852 TELUS Communications Inc.	`4.87ms` from Vancouver, CA
101.17.215.200	AS4837 CHINA UNICOM China169 Backbone	`5.97ms` from Beijing, CN
172.176.49.136	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
76.25.5.72	AS7922 Comcast Cable Communications, LLC	`3.37ms` from Denver, US
91.63.88.216	AS3320 Deutsche Telekom AG	`7.02ms` from Frankfurt am Main, DE
114.104.194.136	AS4134 CHINANET-BACKBONE	`10.55ms` from Huai'an, CN
34.74.12.88	AS396982 Google LLC	`0.13ms` from Moncks Corner, US
110.73.40.40	AS4837 CHINA UNICOM China169 Backbone	`5.18ms` from Nanning, CN
217.251.245.40	AS3320 Deutsche Telekom AG	`5.43ms` from Nuernberg, DE
84.179.43.72	AS3320 Deutsche Telekom AG	`5.11ms` from Nuernberg, DE
66.35.227.40	AS3561 CenturyLink Communications, LLC	`2.32ms` from Santa Clara, US
218.203.239.88	AS9808 China Mobile Communications Group Co., Ltd.	`5.81ms` from Chengdu, CN
186.121.219.72	AS26210 AXS Bolivia S. A.	`0.54ms` from La Paz, BO
38.244.51.120	AS174 Cogent Communications, LLC	`0.46ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 61.251.72.16

traceroute to 61.251.72.16 (61.251.72.16): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.59 0.106 ms

2 *

3 *

4 *

5 [AS4766] 112.174.15.138 1.92 ms

6 *

7 *

8 [AS4766] 211.192.234.42 2.573 ms

9 [AS4766] 61.251.72.16 1.484 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 14th 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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