203.255.212.0/22

AS18023 · Korea Maritime and Ocean University

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS18023
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.255.212.0 - 203.255.215.255
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:  2017-02-02T04:55:35Z
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:        203.255.212.0 - 203.255.215.255
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 3 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

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Useful for Cybersecurity

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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
203.255.212.170	AS18023 Korea Maritime and Ocean University	`6.41ms` 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
66.59.70.22	AS4906 Frontline Communications	`6.35ms` from Ashburn, US
1.91.77.118	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`4.07ms` from Beijing, CN
101.200.57.214	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.98ms` from Beijing, CN
108.49.235.70	AS701 Verizon Business	`1.99ms` from Boston, US
174.51.89.118	AS7922 Comcast Cable Communications, LLC	`5.48ms` from Denver, US
87.169.224.102	AS3320 Deutsche Telekom AG	`4.17ms` from Frankfurt am Main, DE
190.92.1.214	AS27884 CABLECOLOR S.A.	`4.80ms` from Guatemala City, GT
202.101.93.246	AS4134 CHINANET-BACKBONE	`1.14ms` from Guiyang, CN
1.55.113.198	AS18403 FPT Telecom Company	`3.87ms` from Ho Chi Minh City, VN
212.40.37.118	AS12294 PrJSC VF UKRAINE	`0.25ms` from Kyiv, UA
217.37.39.134	AS2856 British Telecommunications PLC	`3.04ms` from London, GB
20.254.1.102	AS8075 Microsoft Corporation	`0.19ms` from London, GB
212.139.5.246	AS9105 TalkTalk Communications Limited	`1.62ms` from Manchester, GB
99.82.165.246	AS16509 Amazon.com, Inc.	`0.12ms` from Miami, US
76.153.99.54	AS7922 Comcast Cable Communications, LLC	`4.08ms` from Miami, US
82.57.170.38	AS3269 Telecom Italia S.p.A.	`9.84ms` from Milan, IT
113.197.136.6	AS2497 Internet Initiative Japan Inc.	`5.86ms` from Osaka, JP
177.69.45.86	AS16735 ALGAR TELECOM S/A	`0.50ms` from Osasco, BR
3.212.216.246	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
81.200.152.214	AS9123 JSC "TIMEWEB"	`0.67ms` from Saint Petersburg, RU
200.76.105.6	AS16531 TOPNET SA de CV	`3.94ms` from Santiago de Queretaro, MX
34.100.46.102	AS396982 Google LLC	`1.35ms` from Sao Paulo, BR
96.66.244.246	AS7922 Comcast Cable Communications, LLC	`4.91ms` from Seattle, US
61.203.65.198	AS2518 BIGLOBE Inc.	`14.70ms` from Tokyo, JP
145.126.105.86	AS1103 SURF B.V.	`6.16ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 -f4 -m8 203.255.214.145

traceroute to 203.255.214.145 (203.255.214.145): 8 hops max, 52 byte packets

4 [AS6939] 72.52.92.131 7.997 ms

5 [] 218.100.9.185 8.183 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

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.

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