220.149.120.0/24

AS23668 · KOREA POLYTECHNIC UNIVERSITY

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS23668
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        220.149.0.0 - 220.149.255.255
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:  2017-02-02T04:55:48Z
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:        220.149.0.0 - 220.149.255.255
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

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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
86.92.207.248	AS1136 KPN B.V.	`1.22ms` from Amsterdam, NL
184.51.90.8	AS20940 Akamai International B.V.	`0.16ms` from Amsterdam, NL
161.200.172.120	AS3839 Chulalongkorn University	`2.51ms` from Bangkok, TH
20.230.60.168	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
207.231.2.88	AS20432 North East Fiber, LLC	`12.26ms` from Dallas, US
209.172.206.56	AS62 CyrusOne LLC	`1.42ms` from Dallas, US
91.6.129.232	AS3320 Deutsche Telekom AG	`10.41ms` from Frankfurt am Main, DE
180.145.240.88	AS17511 OPTAGE Inc.	`2.59ms` from Osaka, JP
88.90.155.200	AS2119 Telenor Norge AS	`13.92ms` from Oslo, NO
88.84.51.40	AS60908 Sucom AS	`10.66ms` from Oslo, NO
27.212.18.56	AS4837 CHINA UNICOM China169 Backbone	`5.38ms` from Qingdao, CN
187.233.249.104	AS8151 UNINET	`12.22ms` from Santiago de Queretaro, MX
182.220.85.136	AS17858 LG POWERCOMM	`2.08ms` from Seoul, KR
211.110.162.120	AS9318 SK Broadband Co Ltd	`1.52ms` from Seoul, KR
171.126.84.152	AS4837 CHINA UNICOM China169 Backbone	`9.91ms` from Taiyuan, CN
82.168.44.104	AS1136 KPN B.V.	`2.62ms` from Amsterdam, NL
202.127.9.120	AS140220 Sky Network Television Ltd	`1.84ms` from Auckland, NZ
120.48.162.8	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	`3.59ms` from Beijing, CN
186.147.27.248	AS10620 Telmex Colombia S.A.	`5.10ms` from Bogota, CO
82.31.233.152	AS5089 Virgin Media Limited	`10.78ms` from Dublin, IE
95.166.33.184	AS48101 Trooli Ltd.	`1.24ms` from London, GB
41.96.139.232	AS36947 Telecom Algeria	`13.76ms` from Madrid, ES
5.165.131.72	AS49048 JSC ER-Telecom Holding	`3.75ms` from Moscow, RU
108.30.69.56	AS701 Verizon Business	`2.68ms` from New York City, US
73.93.123.24	AS7922 Comcast Cable Communications, LLC	`2.38ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 220.149.120.55

traceroute to 220.149.120.55 (220.149.120.55): 6 hops max, 52 byte packets

2 [AS9009] 193.27.15.64 7.264 ms

3 [] 103.16.102.221 0.477 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On September 11th 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.

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