61.251.66.0/24

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	61.251.66.0-61.251.66.255

WHOIS Details

inetnum:            61.251.66.0 - 61.251.66.255
descr:              KT
network-type:       CUSTOMER
address:            Seocho-Dong Seocho-Gu Seoulteukbyeol-Si
zip-code:           137-070
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:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 61.251.66.0/24

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
61.251.67.0/24	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
61.251.78.0/24	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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Pingable IPs

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

IP Address	ASN	Details
61.251.66.67	AS4766 Korea Telecom	`1.09ms` 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
76.152.182.152	AS7922 Comcast Cable Communications, LLC	`5.10ms` from Boston, US
101.182.196.88	AS1221 Telstra Limited	`6.04ms` from Brisbane, AU
176.150.63.88	AS5410 Bouygues Telecom SA	`7.40ms` from Marseille, FR
8.26.97.136	AS23089 Hotwire Communications	`1.35ms` from Miami, US
52.54.126.200	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
212.161.138.216	AS6730 Sunrise GmbH	`0.80ms` from Zuerich, CH
20.122.222.88	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
135.26.72.104	AS6300 Fidium	`7.92ms` from Dallas, US
94.204.35.24	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.87ms` from Dubai, AE
189.177.167.184	AS8151 UNINET	`4.07ms` from Guadalajara, MX
81.159.241.216	AS2856 British Telecommunications PLC	`4.38ms` from London, GB
5.68.94.40	AS5607 Sky UK Limited	`5.60ms` from London, GB
64.118.84.56	AS395383 Cologuard	`0.68ms` from New York City, US
47.20.143.152	AS6128 Cablevision Systems Corp.	`5.44ms` from New York City, US
221.121.242.88	AS17698 COMMUNITY NETWORK CENTER INCORPORATED.	`5.08ms` from Osaka, JP
88.170.1.248	AS12322 Free SAS	`2.12ms` from Paris, FR
35.172.7.88	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
179.186.176.216	AS18881 TELEFÔNICA BRASIL S.A	`10.35ms` from Sao Paulo, BR
103.38.11.200	AS9723 iseek Communications Pty Ltd	`0.56ms` from Sydney, AU
221.205.144.152	AS4837 CHINA UNICOM China169 Backbone	`2.95ms` from Taiyuan, CN
27.138.225.232	AS9824 JCOM Co., Ltd.	`12.09ms` from Tokyo, JP
92.75.185.200	AS3209 Vodafone GmbH	`10.97ms` from Berlin, DE
50.109.126.152	AS5650 Frontier Communications of America, Inc.	`9.23ms` from Chicago, US
70.115.253.104	AS11427 Charter Communications Inc	`9.51ms` from Dallas, US
84.134.72.232	AS3320 Deutsche Telekom AG	`3.39ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 61.251.66.1

traceroute to 61.251.66.1 (61.251.66.1): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.44 0.08 ms

2 *

3 *

4 *

5 [AS4766] 112.174.104.90 1.926 ms

6 *

7 *

8 [AS4766] 61.251.66.1 2.329 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On February 7th 2026

What are IP address ranges?

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