203.250.95.0/24

AS55618 · UNIVERSITY OF ULSAN

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	South Korea
Domain	kren.kr
ASN	AS55618
Registry	APNIC
ID	KREN

WHOIS Details

inetnum:        203.250.64.0 - 203.250.95.255
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:  2017-02-02T04:55:33Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM70-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-11-17T00:10:02Z
source:         APNIC

inetnum:        203.250.64.0 - 203.250.95.255
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
changed:        hostmaster@nic.or.kr 20240912
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.
source:         KRNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IA142-KR
mnt-by:         MNT-KRNIC-AP
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.
source:         KRNIC

person:         IP Manager
address:        57 Daehak-ro, Jongno-gu, Seoul
address:        1
country:        KR
phone:          +82-2-882-5363
e-mail:         kindman@kren.kr
nic-hdl:        IM142-KR
mnt-by:         MNT-KRNIC-AP
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.
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.250.0.0/16

Range	ASN	Company	Num of IPs
203.250.0.0/19	AS1237	KISTI	8,192
203.250.120.0/21	AS9708	Pukyong National University	2,048
203.250.160.0/21	AS1237	KISTI	2,048
203.250.188.0/22	AS9982	Pai Chai University	1,024
203.250.168.0/22	AS17595	Korea Institute of Nuclear Safety	1,024
203.250.148.0/23	AS9769	Sejong University	512
203.250.111.0/24	AS55589	Korea Institute of Industrial Technology	256
203.250.183.0/24	AS1237	KRISO	256
203.250.182.0/24	AS1237	KRISO	256

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

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

IP Address	ASN	Details
203.250.95.100	AS55618 UNIVERSITY OF ULSAN	`6.95ms` from Incheon, 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
167.8.54.8	AS397999 TEGNA Inc.	`13.66ms` from Ashburn, US
58.136.241.72	AS133481 AIS Fibre	`3.50ms` from Bangkok, TH
106.217.66.88	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`0.17ms` from Bengaluru, IN
54.70.101.152	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
47.221.197.152	AS19108 Optimum	`7.14ms` from Dallas, US
90.129.76.152	AS1257 Tele2 Sverige AB	`0.49ms` from Goeteborg, SE
119.130.253.40	AS4134 CHINANET-BACKBONE	`2.98ms` from Guangzhou, CN
101.67.91.168	AS4837 CHINA UNICOM China169 Backbone	`7.25ms` from Hangzhou, CN
23.243.242.24	AS20001 Charter Communications Inc	`9.63ms` from Los Angeles, US
183.79.59.216	AS24572 Yahoo Japan	`6.12ms` from Osaka, JP
83.202.218.184	AS3215 Orange S.A.	`2.63ms` from Paris, FR
54.208.7.248	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
200.222.199.56	AS7738 V tal	`8.43ms` from Rio de Janeiro, BR
14.62.113.8	AS4766 Korea Telecom	`1.22ms` from Seoul, KR
119.214.194.120	AS4766 Korea Telecom	`1.36ms` from Seoul, KR
202.74.140.56	AS9463 ESSENTIAL ENERGY	`0.35ms` from Sydney, AU
178.224.33.232	AS50266 Odido Netherlands B.V.	`3.61ms` from Amsterdam, NL
73.217.176.56	AS7922 Comcast Cable Communications, LLC	`13.56ms` from Atlanta, US
223.156.196.232	AS4134 CHINANET-BACKBONE	`3.50ms` from Changsha, CN
3.248.33.168	AS16509 Amazon.com, Inc.	`0.22ms` from Dublin, IE
60.174.105.88	AS4134 CHINANET-BACKBONE	`12.78ms` from Huai'an, CN
128.128.81.200	AS153259 Edgerede Private Limited	`0.53ms` from Kolkata, IN
121.227.52.72	AS4134 CHINANET-BACKBONE	`5.54ms` from Nanjing, CN
126.109.236.136	AS17676 SoftBank Corp.	`3.16ms` from Osaka, JP
200.149.59.24	AS7738 V tal	`0.57ms` from Rio de Janeiro, BR

Traceroute

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

traceroute -a -n -q1 203.250.95.1

traceroute to 203.250.95.1 (203.250.95.1): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.43 0.067 ms

2 [AS4766] 218.145.32.254 0.731 ms

3 *

4 *

5 *

6 *

7 [AS4766] 222.97.96.34 8.079 ms

8 [AS4766] 218.154.149.6 7.432 ms

9 [AS55618] 203.250.95.1 7.236 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On March 21st 2026

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales