123.254.128.0/18

AS38103 · SK Broadband Co Ltd

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Summary

Country	South Korea
Domain	skbroadband.com
ASN	AS38103
Registry	APNIC
ID	TBROAD

WHOIS Details

inetnum:        123.254.128.0 - 123.254.255.255
netname:        broadNnet
descr:          SK Broadband Co Ltd
country:        KR
admin-c:        IM670-AP
tech-c:         IM670-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2020-12-29T05:46:12Z
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 Jung-gu Toegye-ro 24
country:        KR
phone:          +82-80-828-2106
e-mail:         ip-adm@skbroadband.com
nic-hdl:        IM670-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2021-10-05T05:20:03Z
source:         APNIC

inetnum:        123.254.128.0 - 123.254.255.255
netname:        broadNnet-KR
descr:          SK Broadband Co Ltd
country:        KR
admin-c:        IM12-KR
tech-c:         IM12-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 Jung-gu Toegye-ro 24
address:        SK Namsan Green Bldg.
country:        KR
phone:          +82-80-828-2106
e-mail:         ip-adm@skbroadband.com
nic-hdl:        IM12-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 123.254.0.0/16

Range	ASN	Company	Num of IPs
123.254.0.0/18	AS7522	Pikara(STNet, Incorporated)	16,384
123.254.64.0/19	AS9698	LG HelloVision Corp.	8,192
123.254.112.0/20	AS45780	Broadband Solutions Pty Ltd	4,096
123.254.104.0/21	AS55933	Unit 1604, Perfect Industrial Building	2,048
123.254.100.0/22	AS141771	Beijing Sankuai Cloud Computing Co.,Ltd.	1,024
123.254.96.0/22	AS141771	Beijing Sankuai Cloud Computing Co.,Ltd.	1,024
123.254.65.0/24	AS9698	HVYeongdong	256
123.254.66.0/24	AS9698	HVYeongdong	256
123.254.72.0/24	AS9698	HVYeongdong	256
123.254.79.0/24	AS9698	HVYeongdong	256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.254.145.196	ndiot.net	1
123.254.153.243	bluethumb.co.kr	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

2,405 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.254.183.255	AS38103 SK Broadband Co Ltd	`1.40ms` from Incheon, KR
123.254.190.255	AS38103 SK Broadband Co Ltd	`1.45ms` from Incheon, KR
123.254.178.0	AS38103 SK Broadband Co Ltd	`1.36ms` from Incheon, KR
123.254.135.193	AS38103 SK Broadband Co Ltd	`1.75ms` from Seoul, KR
123.254.159.129	AS38103 SK Broadband Co Ltd	`1.52ms` from Incheon, KR
123.254.162.190	AS38103 SK Broadband Co Ltd	`1.67ms` from Incheon, KR
123.254.179.255	AS38103 SK Broadband Co Ltd	`1.43ms` from Incheon, KR
123.254.160.16	AS38103 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
123.254.189.0	AS38103 SK Broadband Co Ltd	`1.48ms` from Seoul, KR
123.254.164.147	AS38103 SK Broadband Co Ltd	`1.61ms` from Incheon, KR
123.254.177.0	AS38103 SK Broadband Co Ltd	`1.40ms` from Incheon, KR
123.254.186.255	AS38103 SK Broadband Co Ltd	`1.41ms` from Incheon, KR
123.254.131.1	AS38103 SK Broadband Co Ltd	`1.39ms` from Incheon, KR
123.254.174.1	AS38103 SK Broadband Co Ltd	`1.42ms` from Incheon, KR
123.254.191.1	AS38103 SK Broadband Co Ltd	`1.34ms` from Incheon, KR
123.254.153.140	AS38103 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
123.254.133.0	AS38103 SK Broadband Co Ltd	`1.43ms` from Seoul, KR
123.254.129.0	AS38103 SK Broadband Co Ltd	`1.53ms` from Seoul, KR
123.254.169.1	AS38103 SK Broadband Co Ltd	`1.69ms` from Seoul, KR
123.254.137.225	AS38103 SK Broadband Co Ltd	`1.84ms` from Incheon, KR
123.254.175.1	AS38103 SK Broadband Co Ltd	`1.42ms` from Incheon, KR
123.254.167.2	AS38103 SK Broadband Co Ltd	`1.61ms` from Seoul, KR
123.254.182.255	AS38103 SK Broadband Co Ltd	`1.43ms` from Incheon, KR
123.254.166.164	AS38103 SK Broadband Co Ltd	`1.56ms` from Incheon, KR
123.254.136.1	AS38103 SK Broadband Co Ltd	`1.96ms` 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
170.133.169.226	AS13445 Cisco Webex LLC	`0.98ms` from Amsterdam, NL
99.125.117.162	AS7018 AT&T Enterprises, LLC	`10.24ms` from Atlanta, US
121.37.111.114	AS55990 Huawei Cloud Service data center	`8.40ms` from Beijing, CN
117.219.233.194	AS9829 National Internet Backbone	`2.34ms` from Bengaluru, IN
92.214.187.50	AS3209 Vodafone GmbH	`6.37ms` from Berlin, DE
83.134.100.146	AS5432 Proximus NV	`1.16ms` from Brussels, BE
193.6.158.146	AS1955 KIFU (Governmental Info Tech Development Agency)	`5.70ms` from Budapest, HU
222.245.32.34	AS4134 CHINANET-BACKBONE	`3.18ms` from Changsha, CN
12.188.231.2	AS7018 AT&T Enterprises, LLC	`1.28ms` from Chicago, US
75.12.151.210	AS7018 AT&T Enterprises, LLC	`1.53ms` from Dallas, US
63.157.245.18	AS209 CenturyLink Communications, LLC	`11.21ms` from Denver, US
38.97.216.2	AS54744 EPLUS, Inc.	`1.13ms` from Denver, US
50.87.54.242	AS46606 Unified Layer	`1.78ms` from Draper, US
209.91.96.2	AS852 TELUS Communications Inc.	`0.72ms` from Edmonton, CA
213.183.25.2	AS12337 noris network AG	`5.89ms` from Frankfurt am Main, DE
23.213.161.146	AS20940 Akamai International B.V.	`0.20ms` from Frankfurt am Main, DE
193.163.240.2	AS13057 A.P. MOLLER - MAERSK A/S	`2.07ms` from Hong Kong, HK
1.232.175.130	AS9318 SK Broadband Co Ltd	`1.38ms` from Incheon, KR
80.192.141.210	AS5089 Virgin Media Limited	`9.15ms` from London, GB
50.116.52.210	AS63949 Akamai Connected Cloud	`0.12ms` from Morris Plains, US
112.68.202.146	AS17511 OPTAGE Inc.	`3.40ms` from Osaka, JP
189.16.172.66	AS4230 CLARO S.A.	`1.49ms` from Sao Paulo, BR
27.239.111.146	AS4766 Korea Telecom	`5.50ms` from Seoul, KR
85.228.238.2	AS8434 Telenor Sverige AB	`2.10ms` from Stockholm, SE
118.243.116.66	AS4685 Asahi Net	`2.63ms` 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 123.254.146.163

traceroute to 123.254.146.163 (123.254.146.163): 64 hops max, 52 byte packets

1 [AS15169] 74.125.37.114 106.099 ms

2 *

3 *

4 *

5 *

6 [AS38103] 123.254.146.163 147.313 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On February 7th 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.

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