61.251.77.0/24

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	61.251.77.0-61.251.77.255

WHOIS Details

inetnum:            61.251.77.0 - 61.251.77.255
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 61.251.77.0/24

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
61.251.72.0/24	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
61.251.162.0/24	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

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

IP Address	ASN	Details
61.251.77.164	AS4766 Korea Telecom	`1.32ms` 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
184.167.145.72	AS33588 Charter Communications LLC	`6.35ms` from Denver, US
87.187.181.88	AS3320 Deutsche Telekom AG	`7.80ms` from Frankfurt am Main, DE
171.67.213.72	AS32 Stanford University	`1.75ms` from Fremont, US
119.47.80.72	AS38186 Forewin Telecom Group Limited, ISP at HK	`1.01ms` from Hong Kong, HK
86.174.100.8	AS2856 British Telecommunications PLC	`5.60ms` from London, GB
102.215.168.168	AS37645 Finstar - Sociedade de Investimento e Participacoes S.A	`2.31ms` from Luanda, AO
46.26.248.88	AS12430 VODAFONE ESPANA S.A.U.	`16.33ms` from Madrid, ES
32.211.157.248	AS46690 Southern New England Telephone Company and SNET America, Inc.	`10.35ms` from New York City, US
202.34.14.8	AS59124 KYOTO Prefectural Government	`2.02ms` from Osaka, JP
88.127.239.184	AS12322 Free SAS	`7.71ms` from Paris, FR
59.106.144.24	AS9370 SAKURA Internet Inc.	`0.77ms` from Tokyo, JP
151.246.70.56	AS5650 Frontier Communications of America, Inc.	`0.26ms` from Ashburn, US
120.11.88.104	AS4837 CHINA UNICOM China169 Backbone	`8.54ms` from Beijing, CN
14.233.228.168	AS45899 VNPT Corp	`0.83ms` from Da Nang, VN
98.53.151.216	AS7922 Comcast Cable Communications, LLC	`2.79ms` from Denver, US
93.208.183.24	AS3320 Deutsche Telekom AG	`7.86ms` from Frankfurt am Main, DE
176.71.103.8	AS1257 Tele2 Sverige AB	`0.46ms` from Goeteborg, SE
175.164.229.120	AS4837 CHINA UNICOM China169 Backbone	`8.25ms` from Liaoyang, CN
104.174.139.136	AS20001 Charter Communications Inc	`5.11ms` from Los Angeles, US
18.101.236.8	AS16509 Amazon.com, Inc.	`5.66ms` from Madrid, ES
37.9.127.120	AS13238 YANDEX LLC	`6.10ms` from Moscow, RU
13.202.185.8	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
104.228.104.152	AS11351 Charter Communications Inc	`15.91ms` from New York City, US
49.192.167.200	AS4804 Microplex PTY LTD	`1.91ms` from Perth, AU
44.198.178.248	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 61.251.77.1

traceroute to 61.251.77.1 (61.251.77.1): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.7 0.079 ms

2 *

3 *

4 *

5 [AS4766] 112.174.58.54 494.46 ms

6 *

7 *

8 [AS4766] 61.251.77.1 3.757 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.

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