121.187.64.0/20

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	121.187.64.0-121.187.79.255

WHOIS Details

inetnum:            121.187.64.0 - 121.187.79.255
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:             [email protected]
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.187.64.0/20

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
121.187.80.0/22	AS17862	Chuncheongyoyukdaehak	1,024
121.187.84.0/23	AS17862	Gangwondaehakgyojeonjagyesanso	512
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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Pingable IPs

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

IP Address	ASN	Details
121.187.64.236	AS17862 Kangwon National University	`7.19ms` 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
20.123.154.100	AS8075 Microsoft Corporation	`0.26ms` from Amsterdam, NL
23.202.2.20	AS16625 Akamai Technologies, Inc.	`0.92ms` from Chicago, US
50.24.199.164	AS19108 Optimum	`7.80ms` from Dallas, US
94.7.147.84	AS5607 Sky UK Limited	`1.70ms` from Erith, GB
220.178.124.100	AS4134 CHINANET-BACKBONE	`6.65ms` from Huai'an, CN
178.255.190.4	AS42425 PSA S.r.l.	`2.33ms` from Milan, IT
162.84.198.68	AS701 Verizon Business	`2.59ms` from New York City, US
143.126.255.68	AS60855 LA DIRECTION INTERMINISTERIELLE DU NUMERIQUE	`4.20ms` from Paris, FR
213.175.35.4	AS29208 Quantcom, a.s.	`5.42ms` from Prague, CZ
66.120.16.100	AS7018 AT&T Enterprises, LLC	`2.55ms` from San Jose, US
40.137.108.52	AS7029 Windstream Communications LLC	`4.21ms` from Secaucus, US
51.255.215.36	AS16276 OVH SAS	`0.06ms` from Strasbourg, FR
76.69.17.20	AS577 Bell Canada	`2.30ms` from Toronto, CA
143.176.150.148	AS13127 Odido Netherlands B.V.	`7.06ms` from Amsterdam, NL
45.242.40.100	AS24863 Link Egypt (Link.NET)	`10.09ms` from Cairo, EG
31.31.76.4	AS197019 WEDOS Internet, a.s.	`0.22ms` from Ceske Budejovice, CZ
84.147.57.244	AS3320 Deutsche Telekom AG	`7.45ms` from Frankfurt am Main, DE
137.250.203.212	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`9.16ms` from Frankfurt am Main, DE
193.143.236.20	AS1759 Telia Finland Oyj	`3.43ms` from Helsinki, FI
154.92.94.132	AS132839 POWER LINE DATACENTER	`0.61ms` from Hong Kong, HK
190.219.83.100	AS18809 Cable Onda	`8.54ms` from Panama, PA
45.15.66.116	AS9009 M247 Europe SRL	`0.09ms` from Paris, FR
49.29.197.212	AS4766 Korea Telecom	`6.44ms` from Seoul, KR
202.121.106.148	AS4538 China Education and Research Network Center	`1.86ms` from Shanghai, CN
172.65.131.244	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL

Traceroute

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

traceroute -a -n -q1 -m5 121.187.64.164

traceroute to 121.187.64.164 (121.187.64.164): 5 hops max, 52 byte packets

1 [AS25467] 46.183.185.1 0.298 ms

2 [AS34772] 164.40.248.173 0.419 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Skopje, MK

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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