210.181.144.0/22

AS9970 · Korea University of Technology and Education

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Summary

Country	South Korea
Domain	kren.kr
ASN	AS9970
Parent Range	210.181.128.0/18
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        210.181.128.0 - 210.181.191.255
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:  2017-02-02T04:55:45Z
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:        210.181.128.0 - 210.181.191.255
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

Overlapping Ranges

BGP prefixes that contain 210.181.144.0/22

Range	ASN	Company	Num of IPs
210.181.128.0/18	AS10053	Korean Education Network	16,384
210.181.128.0/18	AS3786	Korean Education Network	16,384
210.181.128.0/18	AS4766	Korean Education Network	16,384
210.181.128.0/18	AS9859	Korean Education Network	16,384
210.181.128.0/18	AS9970	Korean Education Network	16,384

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

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

IP Address	ASN	Details
210.181.144.199	AS9970 Korea University of Technology and Education	`3.45ms` from Seoul, KR
210.181.146.89	AS9970 Korea University of Technology and Education	`3.31ms` from Seoul, KR
210.181.145.4	AS9970 Korea University of Technology and Education	`3.65ms` from Seoul, KR
210.181.147.132	AS9970 Korea University of Technology and Education	`4.29ms` 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
99.110.237.246	AS7018 AT&T Enterprises, LLC	`18.29ms` from Atlanta, US
89.134.118.6	AS21334 One Hungary Ltd.	`2.01ms` from Budapest, HU
186.18.204.214	AS27747 Telecentro S.A.	`0.59ms` from Buenos Aires, AR
149.159.229.230	AS27198 Indiana University	`3.58ms` from Indianapolis, US
97.228.8.54	AS6167 Verizon Business	`12.87ms` from Los Angeles, US
169.228.49.6	AS7377 University of California, San Diego	`2.75ms` from Los Angeles, US
212.128.101.6	AS200521 Ministerio De Economia, Comercio Y Empresa	`2.49ms` from Madrid, ES
90.76.172.54	AS3215 Orange S.A.	`13.98ms` from Paris, FR
186.78.235.118	AS7418 TELEFÓNICA CHILE S.A.	`4.24ms` from Santiago, CL
170.84.166.22	AS265016 Atlanet Telecomunicacoes Ltda	`2.06ms` from Sao Paulo, BR
24.17.105.86	AS7922 Comcast Cable Communications, LLC	`2.75ms` from Seattle, US
76.179.97.70	AS11351 Charter Communications Inc	`19.10ms` from Secaucus, US
221.143.187.6	AS9318 SK Broadband Co Ltd	`1.35ms` from Seoul, KR
123.248.53.198	AS9845 LG HelloVision Corp.	`7.49ms` from Seoul, KR
111.231.17.118	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.59ms` from Shanghai, CN
47.48.153.214	AS20115 Charter Communications LLC	`10.46ms` from Atlanta, US
23.204.191.54	AS16625 Akamai Technologies, Inc.	`0.48ms` from Dallas, US
104.231.19.118	AS10796 Charter Communications Inc	`17.09ms` from Flint, US
185.92.78.22	AS35677 Deutsche Bundesbank	`0.90ms` from Frankfurt am Main, DE
72.130.136.214	AS20001 Charter Communications Inc	`4.37ms` from Honolulu, US
109.251.71.6	AS31148 Freenet LTD	`9.84ms` from Kyiv, UA
75.50.63.134	AS7018 AT&T Enterprises, LLC	`3.17ms` from Los Angeles, US
105.168.25.134	AS37119 UNITEL SA	`0.83ms` from Luanda, AO
38.180.170.54	AS58061 Scalaxy B.V.	`0.23ms` from Meppel, NL
174.115.203.70	AS812 Rogers Communications Canada Inc.	`6.86ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 210.181.146.82

traceroute to 210.181.146.82 (210.181.146.82): 64 hops max, 52 byte packets

1 [AS15169] 142.251.241.124 146.418 ms

2 [AS15169] 108.170.248.178 145.012 ms

3 *

4 [AS4766] 112.174.84.121 170.767 ms

5 [AS4766] 112.174.48.202 181.596 ms

6 [AS4766] 112.188.164.130 176.616 ms

7 [AS3786] 211.170.34.74 182.079 ms

8 [AS9970] 220.68.95.83 177.482 ms

9 [AS9970] 220.68.95.2 204.255 ms

10 *

11 [AS9970] 210.181.146.82 185.23 ms

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On September 4th 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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