220.149.119.0/24

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

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

IP Address	ASN	Details
220.149.119.111	AS23668 KOREA POLYTECHNIC UNIVERSITY	`2.83ms` 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
18.154.157.248	AS16509 Amazon.com, Inc.	`3.77ms` from Arezzo, IT
52.149.245.56	AS8075 Microsoft Corporation	`0.60ms` from Ashburn, US
174.106.158.24	AS11426 Charter Communications Inc	`15.87ms` from Atlanta, US
90.52.217.8	AS3215 Orange S.A.	`17.78ms` from Aubervilliers, FR
91.59.37.120	AS3320 Deutsche Telekom AG	`7.92ms` from Frankfurt am Main, DE
87.156.5.184	AS3320 Deutsche Telekom AG	`5.52ms` from Frankfurt am Main, DE
86.128.131.152	AS2856 British Telecommunications PLC	`8.58ms` from London, GB
222.9.238.168	AS18126 Chubu Telecommunications Company, Inc.	`6.26ms` from Osaka, JP
91.232.85.104	AS57560 XLNET s.r.o.	`6.12ms` from Prague, CZ
149.161.64.8	AS87 Indiana University	`9.68ms` from Chicago, US
103.7.120.152	AS150774 EXABYTE LTD	`0.23ms` from Dhaka, BD
183.6.74.184	AS4134 CHINANET-BACKBONE	`2.36ms` from Guangzhou, CN
67.218.244.88	AS15704 XTRA TELECOM S.A.	`9.43ms` from Madrid, ES
104.120.226.232	AS16625 Akamai Technologies, Inc.	`0.57ms` from Melbourne, AU
148.240.63.136	AS6503 Axtel, S.A.B. de C.V.	`15.57ms` from Mexico City, MX
34.180.4.24	AS396982 Google LLC	`0.10ms` from Mumbai, IN
175.234.213.120	AS4766 Korea Telecom	`2.03ms` from Seoul, KR
180.210.200.232	AS45634 10 Science Park Road	`1.03ms` from Singapore, SG
171.126.83.152	AS4837 CHINA UNICOM China169 Backbone	`10.50ms` from Taiyuan, CN
103.255.70.24	AS151185 China Telecom	`5.27ms` from Wuhan, CN
109.136.130.152	AS5432 Proximus NV	`3.87ms` from Amsterdam, NL
3.102.25.152	AS16509 Amazon.com, Inc.	`0.43ms` from Auckland, NZ
85.198.13.56	AS60077 Asre Dadeha Asiatech	`14.50ms` from Baku, AZ
149.200.119.24	AS5483 Magyar Telekom Plc.	`1.26ms` from Budapest, HU
190.50.136.216	AS22927 Telefonica de Argentina	`1.44ms` from Buenos Aires, AR

Traceroute

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

traceroute -a -n -q1 -m5 220.149.119.156

traceroute to 220.149.119.156 (220.149.119.156): 5 hops max, 52 byte packets

1 [AS20278] 64.44.164.153 2.613 ms

2 [] 206.123.7.25 0.427 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Jacksonville, 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.

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