49.142.20.0/23

AS9569 · SEOCHO CABLE SYSTEMS CO., LTD.

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Summary

Country	South Korea
Domain	hcn.co.kr
ASN	AS9569
Registry	APNIC
ID	HCN

WHOIS Details

inetnum:        49.142.0.0 - 49.143.127.255
netname:        HCN
descr:          HYUNDAI COMMUNICATIONS   NETWORK
admin-c:        IM699-AP
tech-c:         IM699-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2019-03-02T08:32:41Z
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 Mapo-gu Maebongsan-ro 75
country:        KR
phone:          +82-2-1877-8000
e-mail:         hcn_ipadm@hcn.co.kr
nic-hdl:        IM699-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2025-02-13T00:54:03Z
source:         APNIC

inetnum:        49.142.0.0 - 49.143.127.255
netname:        HCN-KR
descr:          HYUNDAI COMMUNICATIONS   NETWORK
country:        KR
admin-c:        IA82-KR
tech-c:         IM82-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 Mapo-gu Maebongsan-ro 75
address:        HCN
country:        KR
phone:          +82-2-1877-8000
e-mail:         hcn_ipadm@hcn.co.kr
nic-hdl:        IA82-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Seoul Mapo-gu Maebongsan-ro 75
address:        HCN
country:        KR
phone:          +82-2-1877-8000
e-mail:         hcn_ipadm@hcn.co.kr
nic-hdl:        IM82-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

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

IP Address	ASN	Details
49.142.21.1	AS9569 SEOCHO CABLE SYSTEMS CO., LTD.	`1.17ms` from Seoul, KR
49.142.20.13	AS9569 SEOCHO CABLE SYSTEMS CO., LTD.	`0.85ms` 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
20.97.209.23	AS8075 Microsoft Corporation	`0.49ms` from Boydton, US
209.122.44.39	AS6079 RCN	`4.28ms` from Chicago, US
71.65.88.135	AS10796 Charter Communications Inc	`17.30ms` from Flint, US
218.108.249.119	AS24139 Huashu media&Network Limited	`5.53ms` from Hangzhou, CN
36.134.51.183	AS9808 China Mobile Communications Group Co., Ltd.	`0.57ms` from Hangzhou, CN
123.27.108.151	AS45899 VNPT Corp	`3.13ms` from Hanoi, VN
123.28.243.55	AS45899 VNPT Corp	`4.72ms` from Ho Chi Minh City, VN
176.194.42.87	AS12714 PJSC MegaFon	`12.31ms` from Krasnodar, RU
86.172.203.103	AS2856 British Telecommunications PLC	`6.98ms` from London, GB
82.44.37.71	AS5089 Virgin Media Limited	`6.24ms` from London, GB
99.83.3.199	AS7018 AT&T Enterprises, LLC	`18.92ms` from Los Angeles, US
79.35.238.87	AS3269 Telecom Italia S.p.A.	`9.36ms` from Milan, IT
82.146.58.23	AS29182 JSC IOT	`0.71ms` from Moscow, RU
13.234.60.247	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
204.137.251.87	AS46273 Apogee Telecom Inc.	`9.21ms` from New York City, US
177.66.125.231	AS52672 B3 S.A. Brasil, Bolsa, Balcão	`2.19ms` from Osasco, BR
140.188.93.23	AS54600 PEG TECH INC	`0.23ms` from San Jose, US
97.206.134.167	AS6167 Verizon Business	`9.86ms` from San Jose, US
177.139.187.231	AS27699 TELEFÔNICA BRASIL S.A	`1.99ms` from Sao Paulo, BR
1.107.137.199	AS4766 Korea Telecom	`1.48ms` from Seoul, KR
220.82.247.135	AS4766 Korea Telecom	`2.99ms` from Seoul, KR
119.206.22.87	AS4766 Korea Telecom	`4.69ms` from Seoul, KR
59.17.175.183	AS4766 Korea Telecom	`1.24ms` from Seoul, KR
36.236.189.183	AS3462 Data Communication Business Group	`4.30ms` from Taichung, TW
169.56.20.199	AS36351 IBM Cloud	`0.76ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 49.142.20.9

traceroute to 49.142.20.9 (49.142.20.9): 64 hops max, 52 byte packets

1 [AS202422] 92.38.135.2 0.188 ms

2 *

3 *

4 *

5 [] 139.150.100.36 6.584 ms

6 [AS9569] 49.142.20.9 0.997 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

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.

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