121.187.84.0/23

AS17862 · Kangwon National University

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17862
Parent Range	121.160.0.0/11
Registry	KRNIC
ID	121.187.84.0-121.187.85.255

WHOIS Details

inetnum:            121.187.84.0 - 121.187.85.255
descr:              Gangwondaehakgyojeonjagyesanso
network-type:       CUSTOMER
address:            Hyoja2-Dong Chuncheon-Si Gangwon-Do
zip-code:           200092
created:            2021-11-17
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 121.187.84.0/23

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.187.0.0/16

Range	ASN	Company	Num of IPs
121.160.0.0/11	AS23582	Korea Telecom	2,097,152
121.160.0.0/11	AS38089	Korea Telecom	2,097,152
121.160.0.0/11	AS4766	Korea Telecom	2,097,152
121.187.64.0/20	AS17862	Gangwondaehakgyojeonjagyesanso	4,096
121.187.80.0/22	AS17862	Chuncheongyoyukdaehak	1,024
121.187.23.0/24	AS55615	(ju)deojonbijeuon	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
122.140.95.183	AS4837 CHINA UNICOM China169 Backbone	`10.48ms` from Changchun, CN
117.202.106.215	AS9829 National Internet Backbone	`13.87ms` from Chennai, IN
3.28.90.199	AS16509 Amazon.com, Inc.	`0.13ms` from Dubai, AE
139.199.59.103	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.11ms` from Guangzhou, CN
14.237.65.199	AS45899 VNPT Corp	`3.49ms` from Ho Chi Minh City, VN
77.47.172.39	AS25500 User Association of Ukrainian Research and Academic Network URAN	`0.56ms` from Kyiv, UA
81.110.181.103	AS5089 Virgin Media Limited	`6.28ms` from London, GB
115.214.59.247	AS4134 CHINANET-BACKBONE	`1.91ms` from Ningbo, CN
193.69.98.135	AS2116 GLOBALCONNECT AS	`0.93ms` from Oslo, NO
93.151.167.119	AS30722 Vodafone Italia S.p.A.	`9.08ms` from Rome, IT
187.236.93.199	AS8151 UNINET	`4.22ms` from Santiago de Queretaro, MX
92.32.112.199	AS8434 Telenor Sverige AB	`11.35ms` from Stockholm, SE
91.187.187.135	AS21412 UAB "Cgates"	`2.08ms` from Vilnius, LT
134.112.11.103	AS8075 Microsoft Corporation	`0.17ms` from Warsaw, PL
132.250.91.87	AS48 Navy Network Information Center (NNIC)	`2.72ms` from Ashburn, US
20.165.242.183	AS8075 Microsoft Corporation	`3.23ms` from Denver, US
4.208.193.135	AS8075 Microsoft Corporation	`0.20ms` from Dublin, IE
90.215.0.215	AS5607 Sky UK Limited	`4.92ms` from Erith, GB
84.162.222.87	AS3320 Deutsche Telekom AG	`4.37ms` from Frankfurt am Main, DE
191.88.95.151	AS27831 Colombia Móvil	`9.17ms` from Medellin, CO
84.253.129.119	AS3302 Retelit Digital Services S.p.A.	`0.17ms` from Milan, IT
186.54.34.71	AS6057 Administracion Nacional de Telecomunicaciones	`1.76ms` from Montevideo, UY
106.194.160.55	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`13.40ms` from Mumbai, IN
98.231.54.87	AS7922 Comcast Cable Communications, LLC	`7.69ms` from Orlando, US
54.162.13.71	AS14618 Amazon.com, Inc.	`0.20ms` 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 -m23 121.187.85.61

traceroute to 121.187.85.61 (121.187.85.61): 23 hops max, 52 byte packets

1 [AS199524] 93.174.164.1 0.093 ms

2 [AS199524] 5.188.132.2 0.194 ms

3 *

4 *

5 [AS8193] 195.158.0.41 3.202 ms

6 [AS8193] 84.54.64.209 2.9 ms

7 [AS28910] 195.69.189.252 2.46 ms

8 [AS28910] 195.69.189.39 2.592 ms

9 [AS28910] 195.69.189.51 3.203 ms

10 *

11 [AS3786] 1.208.112.81 151.67 ms

12 *

13 *

14 *

15 [AS3786] 210.180.226.42 150.518 ms

16 [AS3786] 1.213.131.74 150.35 ms

17 [AS3786] 1.213.131.210 150.439 ms

18 *

19 [AS17862] 210.115.63.3 174.065 ms

20 [AS17862] 210.115.63.70 160.341 ms

21 *

22 *

23 *

Measurement taken from

IPinfo ProbeNet in Tashkent, UZ

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.

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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