203.255.64.0/19

AS18158 · CHUNGBUK NATIONAL UNIVERSITY

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Summary

Country	South Korea
Domain	chungbuk.ac.kr
ASN	AS18158
Registry	APNIC
ID	CHUNGBUK-NET

WHOIS Details

inetnum:        203.255.64.0 - 203.255.95.255
netname:        CHUNGBUK-NET
descr:          CHUNGBUK NATIONAL UNIVERSITY
admin-c:        IM823-AP
tech-c:         IM823-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2017-01-25T01:21:39Z
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:        Chungcheongbuk-do Seowon-gu, Cheongju-si Chungdae-ro 1
country:        KR
phone:          +82-43-261-2117
e-mail:         mailadm@chungbuk.ac.kr
nic-hdl:        IM823-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2023-11-03T04:24:10Z
source:         APNIC

inetnum:        203.255.64.0 - 203.255.95.255
netname:        CHUNGBUK-NET-KR
descr:          CHUNGBUK NATIONAL UNIVERSITY
country:        KR
admin-c:        C.42-KR
tech-c:         C.42-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:        Chungcheongbuk-do Seowon-gu, Cheongju-si Chungdae-ro 1
address:        Chungbuk National University
country:        KR
phone:          +82-43-261-2117
e-mail:         mailadm@chungbuk.ac.kr
nic-hdl:        C.42-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 203.255.0.0/16

Range	ASN	Company	Num of IPs
203.255.0.0/18	AS18028	GyeongSang National University	16,384
203.255.128.0/19	AS9848	SEJONG NETWORKS	8,192
203.255.240.0/21	AS9273	ITCENENTEC CO.,LTD.	2,048
203.255.224.0/21	AS23975	Yonam Institute of Technology	2,048
203.255.248.0/21	AS9270	National Infomation Society Agency	2,048
203.255.212.0/22	AS18023	Korean Education Network	1,024
203.255.236.0/22	AS38426	KOREA RURAL ECONOMIC INSTITUTE	1,024
203.255.232.0/23	AS9975	Gyeongsangbuk-do Education Research Institute	512
203.255.220.0/23	AS9970	Korean Education Network	512
203.255.234.0/24	AS3786	LG DACOM Corporation	256

Hosted domains

There are 6 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.255.84.96	damsafety.kr	1
203.255.95.151	cbnu.co.kr	1
203.255.82.29	dreamccp.co.kr	1
203.255.81.70	pitches.social	1
203.255.70.52	fivestars.kr	1
203.255.78.58	texbot.space	1

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

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

IP Address	ASN	Details
203.255.95.164	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.87ms` from Seoul, KR
203.255.74.156	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.51ms` from Seoul, KR
203.255.78.81	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.97ms` from Seoul, KR
203.255.83.108	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.31ms` from Seoul, KR
203.255.81.41	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.92ms` from Seoul, KR
203.255.64.196	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`25.45ms` from Seoul, KR
203.255.84.124	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.48ms` from Seoul, KR
203.255.89.65	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`5.74ms` from Seoul, KR
203.255.70.57	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.14ms` from Seoul, KR
203.255.65.215	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.65ms` from Seoul, KR
203.255.92.102	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`5.57ms` from Seoul, KR
203.255.75.55	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.41ms` from Seoul, KR
203.255.91.155	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.00ms` from Seoul, KR
203.255.69.75	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`24.29ms` from Seoul, KR
203.255.82.91	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`4.64ms` from Seoul, KR
203.255.93.70	AS18158 CHUNGBUK NATIONAL UNIVERSITY	`23.92ms` 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
75.97.135.179	AS3737 PenTeleData Inc.	`17.68ms` from Ashburn, US
74.67.31.99	AS11351 Charter Communications Inc	`15.81ms` from Chicago, US
173.223.156.99	AS16625 Akamai Technologies, Inc.	`0.22ms` from Dallas, US
176.116.120.19	AS213162 SVA System Vertrieb Alexander GmbH	`0.30ms` from Frankfurt am Main, DE
121.204.40.211	AS4134 CHINANET-BACKBONE	`1.56ms` from Fuzhou, CN
94.74.97.131	AS136907 HUAWEI CLOUDS	`0.68ms` from Hong Kong, HK
221.127.215.83	AS9304 HGC Global Communications Limited	`1.91ms` from Hong Kong, HK
94.62.83.147	AS12353 Vodafone Portugal	`2.81ms` from Lisbon, PT
177.133.193.3	AS18881 TELEFÔNICA BRASIL S.A	`14.54ms` from Osasco, BR
177.125.209.195	AS262354 GIGA MAIS FIBRA TELECOMUNICACOES S.A.	`9.66ms` from Osasco, BR
1.248.89.3	AS9318 SK Broadband Co Ltd	`7.20ms` from Seoul, KR
18.177.51.115	AS16509 Amazon.com, Inc.	`0.29ms` from Tokyo, JP
126.79.181.35	AS17676 SoftBank Corp.	`2.94ms` from Tokyo, JP
207.107.104.243	AS812 Rogers Communications Canada Inc.	`1.09ms` from Toronto, CA
217.164.192.3	AS5384 Emirates Internet	`0.92ms` from Al Fujairah City, AE
46.177.238.195	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.02ms` from Athens, GR
183.196.67.195	AS24547 Hebei Mobile Communication Company Limited	`11.09ms` from Beijing, CN
183.3.139.211	AS4134 CHINANET-BACKBONE	`2.74ms` from Guangzhou, CN
182.43.45.51	AS58519 Cloud Computing Corporation	`0.44ms` from Guiyang, CN
172.250.108.131	AS20001 Charter Communications Inc	`5.33ms` from Los Angeles, US
167.148.72.99	AS2914 NTT America, Inc.	`0.26ms` from Los Angeles, US
203.76.224.3	AS133206 DGTEK PTY LTD	`0.41ms` from Melbourne, AU
34.23.79.35	AS396982 Google LLC	`0.16ms` from Moncks Corner, US
109.161.19.227	AS12389 PJSC Rostelecom	`17.11ms` from Moscow, RU
35.154.69.163	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN

Traceroute

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

traceroute -a -n -q1 -m12 203.255.95.149

traceroute to 203.255.95.149 (203.255.95.149): 12 hops max, 52 byte packets

1 [AS31898] 140.91.214.26 0.065 ms

2 [AS3786] 211.118.152.142 0.614 ms

3 *

4 *

5 [AS4766] 112.174.63.202 3.422 ms

6 [AS4766] 112.188.195.58 3.214 ms

7 *

8 [AS4766] 211.38.88.182 4.231 ms

9 [AS18158] 210.125.159.69 3.913 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

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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