61.251.78.0/24

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	61.251.78.0-61.251.78.255

WHOIS Details

inetnum:            61.251.78.0 - 61.251.78.255
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:              +82-2-500-6631
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 61.251.78.0/24

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
61.251.77.0/24	AS4766	KT	256
61.251.162.0/24	AS10160	KDDI KOREA	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

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
216.67.117.184	AS7782 Alaska Communications Systems Group, Inc.	`5.61ms` from Anchorage, US
18.236.130.40	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
174.66.229.120	AS22773 Cox Communications Inc.	`6.42ms` from Dallas, US
107.158.128.136	AS62904 Eonix Corporation	`0.85ms` from Dallas, US
51.112.6.120	AS16509 Amazon.com, Inc.	`0.11ms` from Dubai, AE
47.89.30.168	AS45102 Alibaba (US) Technology Co., Ltd.	`0.64ms` from Hong Kong, HK
179.173.196.136	AS26599 TELEFÔNICA BRASIL S.A	`2.12ms` from Osasco, BR
78.29.102.200	AS12389 PJSC Rostelecom	`12.32ms` from Samara, RU
78.61.35.200	AS8764 Telia Lietuva, AB	`2.50ms` from Vilnius, LT
186.145.135.248	AS14080 Telmex Colombia S.A.	`1.12ms` from Bogota, CO
75.41.123.40	AS7018 AT&T Enterprises, LLC	`2.98ms` from Chicago, US
3.14.80.72	AS16509 Amazon.com, Inc.	`1.03ms` from Columbus, US
188.185.191.40	AS513 CERN - European Organization for Nuclear Research	`1.11ms` from Geneve, CH
88.248.85.8	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.95ms` from Istanbul, TR
103.138.205.8	AS138838 PT NET Super Cepat	`0.63ms` from Jakarta, ID
176.82.217.184	AS3352 TELEFONICA DE ESPANA S.A.U.	`19.22ms` from Madrid, ES
96.0.144.104	AS16509 Amazon.com, Inc.	`0.07ms` from Manila, PH
3.92.34.40	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
193.164.152.200	AS51789 JSC TIMEWEB	`0.75ms` from Saint Petersburg, RU
222.5.78.104	AS2516 KDDI CORPORATION	`4.06ms` from Tokyo, JP
193.122.162.152	AS31898 Oracle Corporation	`0.28ms` from Ashburn, US
101.20.0.168	AS4837 CHINA UNICOM China169 Backbone	`6.07ms` from Beijing, CN
110.252.3.104	AS4837 CHINA UNICOM China169 Backbone	`7.77ms` from Beijing, CN
201.219.105.24	AS14232 Cooperativa Telefónica Pinamar Ltda.	`9.27ms` from Buenos Aires, AR
197.132.146.24	AS24835 Vodafone Data	`13.32ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 -f3 -m13 61.251.78.165

traceroute to 61.251.78.165 (61.251.78.165): 13 hops max, 52 byte packets

3 [AS174] 154.24.10.249 0.984 ms

4 [AS174] 154.54.171.157 1.545 ms

5 [AS174] 154.54.42.150 4.733 ms

6 [AS174] 154.54.31.158 5.826 ms

7 [AS174] 38.104.108.18 5.484 ms

8 [AS4766] 112.174.87.217 133.075 ms

9 [AS4766] 112.174.86.237 158.082 ms

10 [AS4766] 112.174.49.42 143.104 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Seattle, US

On January 9th 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.

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