220.66.236.0/22

AS18034 · Gangneung-Wonju National University

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	South Korea
Domain	kren.kr
ASN	AS18034
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        220.66.0.0 - 220.67.255.255
netname:        KREN
descr:          Korean Education Network
admin-c:        IM70-AP
tech-c:         IM70-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-02-02T04:55:47Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Jeollanam-do Naju-si Jinheung-gil
e-mail:         irt@nic.or.kr
abuse-mailbox:  irt@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        irt@nic.or.kr was validated on 2020-04-09
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-06-15T06:21:49Z
source:         APNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2024-07-09T23:56:03Z
source:         APNIC

inetnum:        220.66.0.0 - 220.67.255.255
netname:        KREN-KR
descr:          Korean Education Network
country:        KR
admin-c:        IA142-KR
tech-c:         IM142-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Gwanak-gu Gwanak-ro
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

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
62.77.233.22	AS12301 Invitech ICT Services Kft.	`0.59ms` from Budapest, HU
50.102.147.230	AS5650 Frontier Communications of America, Inc.	`4.94ms` from Chicago, US
83.233.95.198	AS29518 Bredband2 AB	`6.64ms` from Copenhagen, DK
54.217.126.102	AS16509 Amazon.com, Inc.	`0.12ms` from Dublin, IE
116.62.129.22	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.06ms` from Hangzhou, CN
101.173.65.150	AS1221 Telstra Limited	`5.91ms` from Melbourne, AU
96.57.254.22	AS6128 Cablevision Systems Corp.	`3.39ms` from New York City, US
15.228.167.134	AS16509 Amazon.com, Inc.	`0.86ms` from Osasco, BR
39.68.216.166	AS4837 CHINA UNICOM China169 Backbone	`6.75ms` from Qingdao, CN
49.254.92.54	AS4766 Korea Telecom	`3.12ms` from Seoul, KR
35.244.117.38	AS396982 Google LLC	`0.11ms` from Sydney, AU
220.181.171.22	AS23724 IDC, China Telecommunications Corporation	`2.19ms` from Tianjin, CN
110.233.155.6	AS2518 BIGLOBE Inc.	`16.01ms` from Tokyo, JP
180.49.207.198	AS4713 NTT Communications Corporation	`3.57ms` from Tokyo, JP
90.152.204.198	AS8562 A1 Telekom Austria AG	`10.81ms` from Vienna, AT
123.52.69.230	AS4134 CHINANET-BACKBONE	`9.32ms` from Zhengzhou, CN
61.168.12.38	AS4837 CHINA UNICOM China169 Backbone	`0.82ms` from Zhengzhou, CN
87.233.22.22	AS15703 TrueServer BV AS number	`0.56ms` from Amsterdam, NL
73.173.34.134	AS7922 Comcast Cable Communications, LLC	`6.84ms` from Ashburn, US
91.127.14.22	AS6855 Slovak Telekom, a.s.	`6.07ms` from Bratislava, SK
217.60.20.182	AS48678 PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETi	`0.16ms` from Bursa, TR
76.194.81.198	AS7018 AT&T Enterprises, LLC	`6.48ms` from Chicago, US
141.66.1.246	AS13040 FIZ Karlsruhe - Leibniz-Institut fuer Informationsinfrastruktur GmbH	`2.24ms` from Frankfurt am Main, DE
78.149.21.246	AS13285 TalkTalk Communications Limited	`1.96ms` from Manchester, GB
125.17.223.134	AS9498 BHARTI Airtel Ltd.	`1.94ms` from Mumbai, IN

Traceroute

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

traceroute -a -n -q1 -m5 220.66.237.37

traceroute to 220.66.237.37 (220.66.237.37): 5 hops max, 52 byte packets

1 [AS3920] 77.247.111.17 0.113 ms

2 [AS3920] 77.247.111.129 0.142 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Tallinn, EE

On August 28th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales