220.149.218.0/24

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
48.216.179.248	AS8075 Microsoft Corporation	`0.59ms` from Ashburn, US
77.229.214.56	AS12430 VODAFONE ESPANA S.A.U.	`4.47ms` from Barcelona, ES
119.226.71.200	AS9583 Sify Limited	`9.72ms` from Chennai, IN
14.187.7.168	AS45899 VNPT Corp	`1.53ms` from Ho Chi Minh City, VN
170.114.79.168	AS31898 Oracle Corporation	`0.16ms` from Jeddah, SA
136.46.8.136	AS16591 Google Fiber Inc.	`4.25ms` from Kansas City, US
194.36.230.136	AS15814 Clearstream Services S.A.	`5.55ms` from Luxembourg, LU
175.39.193.104	AS4804 Microplex PTY LTD	`9.72ms` from Melbourne, AU
73.0.122.216	AS7922 Comcast Cable Communications, LLC	`8.72ms` from Miami, US
128.84.154.120	AS26 Cornell University	`6.44ms` from New York City, US
90.17.18.56	AS3215 Orange S.A.	`9.19ms` from Paris, FR
14.55.88.184	AS4766 Korea Telecom	`4.62ms` from Seoul, KR
220.74.43.24	AS4766 Korea Telecom	`1.87ms` from Seoul, KR
111.229.76.40	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.90ms` from Shanghai, CN
108.143.28.72	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
158.58.27.88	AS197207 Mobile Communication Company of Iran PLC	`18.51ms` from Az Za`ayin, QA
73.186.45.232	AS7922 Comcast Cable Communications, LLC	`4.46ms` from Boston, US
3.135.75.8	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
85.228.205.168	AS2119 Telenor Norge AS	`2.34ms` from Copenhagen, DK
106.55.73.152	AS45090 Shenzhen Tencent Computer Systems Company Limited	`4.20ms` from Guangzhou, CN
84.179.82.136	AS3320 Deutsche Telekom AG	`4.34ms` from Hamburg, DE
149.104.28.120	AS139659 LUCIDACLOUD LIMITED	`0.60ms` from Hong Kong, HK
34.128.55.184	AS396982 Google LLC	`0.09ms` from London, GB
80.103.80.248	AS12479 Orange Espagne SA	`2.20ms` from Madrid, ES
197.146.150.8	AS36884 Wana Corporate	`14.36ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -m5 220.149.218.143

traceroute to 220.149.218.143 (220.149.218.143): 5 hops max, 52 byte packets

1 [AS15169] 142.251.76.209 55.357 ms

2 [AS15169] 108.170.255.126 57.121 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

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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