Autonomous System details

AS23563

SK Broadband Co Ltd · skbroadband.com

South Korea

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AS23563 – SK Broadband Co Ltd

Field	Value
Country	South Korea
Website	skbroadband.com
Hosted domains	56
IPv4 addresses	204,800
IPv6 addresses	0
ASN type	ISP
Registry	apnic
Updated	5 years ago on Jan 05, 2021

Netblock	Company	Num of IPs
218.209.0.0/16	SK Broadband Co Ltd	65,536
27.119.0.0/17	SK Broadband Co Ltd	32,768
114.108.0.0/17	SK Broadband Co Ltd	32,768
222.251.128.0/17	SK Broadband Co Ltd	32,768
119.17.64.0/18	SK Broadband Co Ltd	16,384
121.254.0.0/18	SK Broadband Co Ltd	16,384
114.29.128.0/19	SK Broadband Co Ltd	8,192
27.119.104.0/21	SK Broadband Co Ltd	2,048
218.209.40.0/21	SK Broadband Co Ltd	2,048
218.209.64.0/21	SK Broadband Co Ltd	2,048
218.209.104.0/21	SK Broadband Co Ltd	2,048
222.251.200.0/21	SK Broadband Co Ltd	2,048
27.119.36.0/22	SK Broadband Co Ltd	1,024
27.119.96.0/22	SK Broadband Co Ltd	1,024
27.119.112.0/22	SK Broadband Co Ltd	1,024
114.29.136.0/22	SK Broadband Co Ltd	1,024
114.108.20.0/22	SK Broadband Co Ltd	1,024
114.108.56.0/22	SK Broadband Co Ltd	1,024
114.108.80.0/22	SK Broadband Co Ltd	1,024
114.108.96.0/22	SK Broadband Co Ltd	1,024
114.108.112.0/22	SK Broadband Co Ltd	1,024
119.17.116.0/22	SK Broadband Co Ltd	1,024
218.209.20.0/22	SK Broadband Co Ltd	1,024
218.209.32.0/22	SK Broadband Co Ltd	1,024
218.209.48.0/22	SK Broadband Co Ltd	1,024
218.209.72.0/22	SK Broadband Co Ltd	1,024
218.209.124.0/22	SK Broadband Co Ltd	1,024
218.209.152.0/22	SK Broadband Co Ltd	1,024
218.209.184.0/22	SK Broadband Co Ltd	1,024
218.209.252.0/22	SK Broadband Co Ltd	1,024
27.119.0.0/23	SK Broadband Co Ltd	512
27.119.14.0/23	SK Broadband Co Ltd	512
27.119.46.0/23	SK Broadband Co Ltd	512
27.119.48.0/23	SK Broadband Co Ltd	512
27.119.54.0/23	SK Broadband Co Ltd	512
27.119.64.0/23	SK Broadband Co Ltd	512
27.119.82.0/23	SK Broadband Co Ltd	512
27.119.84.0/23	SK Broadband Co Ltd	512
27.119.102.0/23	SK Broadband Co Ltd	512
27.119.116.0/23	SK Broadband Co Ltd	512
27.119.122.0/23	SK Broadband Co Ltd	512
27.119.126.0/23	SK Broadband Co Ltd	512
114.29.134.0/23	SK Broadband Co Ltd	512
114.108.16.0/23	SK Broadband Co Ltd	512
114.108.38.0/23	SK Broadband Co Ltd	512
114.108.40.0/23	SK Broadband Co Ltd	512
114.108.46.0/23	SK Broadband Co Ltd	512
114.108.48.0/23	SK Broadband Co Ltd	512
114.108.60.0/23	SK Broadband Co Ltd	512
114.108.68.0/23	SK Broadband Co Ltd	512
114.108.70.0/23	SK Broadband Co Ltd	512
114.108.76.0/23	SK Broadband Co Ltd	512
114.108.94.0/23	SK Broadband Co Ltd	512
114.108.100.0/23	SK Broadband Co Ltd	512
114.108.104.0/23	SK Broadband Co Ltd	512
119.17.72.0/23	SK Broadband Co Ltd	512
119.17.120.0/23	SK Broadband Co Ltd	512
121.254.18.0/23	SK Broadband Co Ltd	512
121.254.54.0/23	SK Broadband Co Ltd	512
121.254.56.0/23	SK Broadband Co Ltd	512
218.209.18.0/23	SK Broadband Co Ltd	512
218.209.24.0/23	SK Broadband Co Ltd	512
218.209.52.0/23	SK Broadband Co Ltd	512
218.209.84.0/23	SK Broadband Co Ltd	512
218.209.92.0/23	SK Broadband Co Ltd	512
218.209.102.0/23	SK Broadband Co Ltd	512
218.209.112.0/23	SK Broadband Co Ltd	512
218.209.118.0/23	SK Broadband Co Ltd	512
218.209.144.0/23	SK Broadband Co Ltd	512
218.209.150.0/23	SK Broadband Co Ltd	512
218.209.162.0/23	SK Broadband Co Ltd	512
218.209.182.0/23	SK Broadband Co Ltd	512
218.209.226.0/23	SK Broadband Co Ltd	512
218.209.228.0/23	SK Broadband Co Ltd	512
218.209.234.0/23	SK Broadband Co Ltd	512
218.209.246.0/23	SK Broadband Co Ltd	512
222.251.138.0/23	SK Broadband Co Ltd	512
222.251.152.0/23	SK Broadband Co Ltd	512
222.251.178.0/23	SK Broadband Co Ltd	512
222.251.184.0/23	SK Broadband Co Ltd	512
222.251.188.0/23	SK Broadband Co Ltd	512
222.251.214.0/23	SK Broadband Co Ltd	512
222.251.230.0/23	SK Broadband Co Ltd	512
27.119.3.0/24	SK Broadband Co Ltd	256
27.119.11.0/24	SK Broadband Co Ltd	256
27.119.12.0/24	SK Broadband Co Ltd	256
27.119.16.0/24	SK Broadband Co Ltd	256
27.119.18.0/24	SK Broadband Co Ltd	256
27.119.23.0/24	SK Broadband Co Ltd	256
27.119.25.0/24	SK Broadband Co Ltd	256
27.119.26.0/24	SK Broadband Co Ltd	256
27.119.35.0/24	SK Broadband Co Ltd	256
27.119.51.0/24	SK Broadband Co Ltd	256
27.119.52.0/24	SK Broadband Co Ltd	256
27.119.56.0/24	SK Broadband Co Ltd	256
27.119.58.0/24	SK Broadband Co Ltd	256
27.119.61.0/24	SK Broadband Co Ltd	256
27.119.62.0/24	SK Broadband Co Ltd	256
27.119.70.0/24	SK Broadband Co Ltd	256
27.119.75.0/24	SK Broadband Co Ltd	256
27.119.86.0/24	SK Broadband Co Ltd	256
27.119.90.0/24	SK Broadband Co Ltd	256
27.119.92.0/24	SK Broadband Co Ltd	256
27.119.101.0/24	SK Broadband Co Ltd	256
27.119.118.0/24	SK Broadband Co Ltd	256
27.119.120.0/24	SK Broadband Co Ltd	256
27.119.124.0/24	SK Broadband Co Ltd	256
114.29.140.0/24	SK Broadband Co Ltd	256
114.108.1.0/24	SK Broadband Co Ltd	256
114.108.6.0/24	SK Broadband Co Ltd	256
114.108.11.0/24	SK Broadband Co Ltd	256
114.108.15.0/24	SK Broadband Co Ltd	256
114.108.18.0/24	SK Broadband Co Ltd	256
114.108.25.0/24	SK Broadband Co Ltd	256
114.108.34.0/24	SK Broadband Co Ltd	256
114.108.36.0/24	SK Broadband Co Ltd	256
114.108.45.0/24	SK Broadband Co Ltd	256
114.108.50.0/24	SK Broadband Co Ltd	256
114.108.63.0/24	SK Broadband Co Ltd	256
114.108.73.0/24	SK Broadband Co Ltd	256
114.108.74.0/24	SK Broadband Co Ltd	256
114.108.91.0/24	SK Broadband Co Ltd	256
114.108.102.0/24	SK Broadband Co Ltd	256
114.108.106.0/24	SK Broadband Co Ltd	256
114.108.109.0/24	SK Broadband Co Ltd	256
114.108.111.0/24	SK Broadband Co Ltd	256
114.108.120.0/24	SK Broadband Co Ltd	256
114.108.122.0/24	SK Broadband Co Ltd	256
119.17.64.0/24	SK Broadband Co Ltd	256
119.17.66.0/24	SK Broadband Co Ltd	256
119.17.68.0/24	SK Broadband Co Ltd	256
119.17.71.0/24	SK Broadband Co Ltd	256
119.17.76.0/24	SK Broadband Co Ltd	256
119.17.79.0/24	SK Broadband Co Ltd	256
119.17.87.0/24	SK Broadband Co Ltd	256
119.17.88.0/24	SK Broadband Co Ltd	256
119.17.90.0/24	SK Broadband Co Ltd	256
119.17.98.0/24	SK Broadband Co Ltd	256
119.17.122.0/24	SK Broadband Co Ltd	256
121.254.2.0/24	SK Broadband Co Ltd	256
121.254.3.0/24	SK Broadband Co Ltd	256
121.254.7.0/24	SK Broadband Co Ltd	256
121.254.8.0/24	SK Broadband Co Ltd	256
121.254.20.0/24	SK Broadband Co Ltd	256
121.254.28.0/24	SK Broadband Co Ltd	256
121.254.50.0/24	SK Broadband Co Ltd	256
121.254.58.0/24	SK Broadband Co Ltd	256
218.209.26.0/24	SK Broadband Co Ltd	256
218.209.31.0/24	SK Broadband Co Ltd	256
218.209.39.0/24	SK Broadband Co Ltd	256
218.209.54.0/24	SK Broadband Co Ltd	256
218.209.63.0/24	SK Broadband Co Ltd	256
218.209.76.0/24	SK Broadband Co Ltd	256
218.209.79.0/24	SK Broadband Co Ltd	256
218.209.80.0/24	SK Broadband Co Ltd	256
218.209.86.0/24	SK Broadband Co Ltd	256
218.209.88.0/24	SK Broadband Co Ltd	256
218.209.91.0/24	SK Broadband Co Ltd	256
218.209.98.0/24	SK Broadband Co Ltd	256
218.209.101.0/24	SK Broadband Co Ltd	256
218.209.117.0/24	SK Broadband Co Ltd	256
218.209.123.0/24	SK Broadband Co Ltd	256
218.209.146.0/24	SK Broadband Co Ltd	256
218.209.156.0/24	SK Broadband Co Ltd	256
218.209.164.0/24	SK Broadband Co Ltd	256
218.209.168.0/24	SK Broadband Co Ltd	256
218.209.191.0/24	SK Broadband Co Ltd	256
218.209.193.0/24	SK Broadband Co Ltd	256
218.209.196.0/24	SK Broadband Co Ltd	256
218.209.202.0/24	SK Broadband Co Ltd	256
218.209.223.0/24	SK Broadband Co Ltd	256
218.209.236.0/24	SK Broadband Co Ltd	256
218.209.239.0/24	SK Broadband Co Ltd	256
218.209.245.0/24	SK Broadband Co Ltd	256
222.251.130.0/24	SK Broadband Co Ltd	256
222.251.137.0/24	SK Broadband Co Ltd	256
222.251.140.0/24	SK Broadband Co Ltd	256
222.251.151.0/24	SK Broadband Co Ltd	256
222.251.155.0/24	SK Broadband Co Ltd	256
222.251.160.0/24	SK Broadband Co Ltd	256
222.251.177.0/24	SK Broadband Co Ltd	256
222.251.181.0/24	SK Broadband Co Ltd	256
222.251.183.0/24	SK Broadband Co Ltd	256
222.251.192.0/24	SK Broadband Co Ltd	256
222.251.195.0/24	SK Broadband Co Ltd	256
222.251.199.0/24	SK Broadband Co Ltd	256
222.251.209.0/24	SK Broadband Co Ltd	256
222.251.210.0/24	SK Broadband Co Ltd	256
222.251.213.0/24	SK Broadband Co Ltd	256
222.251.224.0/24	SK Broadband Co Ltd	256
222.251.229.0/24	SK Broadband Co Ltd	256
222.251.245.0/24	SK Broadband Co Ltd	256
222.251.247.0/24	SK Broadband Co Ltd	256
222.251.251.0/24	SK Broadband Co Ltd	256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS23563
                                                OrgID:          AS23563
                                                ASName:         AS23563
                                                ASNumber:       AS23563
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 56 domain names hosted across 30 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
119.17.69.147	██████████	8
114.108.127.133	██████████	5
114.108.112.207	██████████	3
218.209.161.48	██████████	3
27.119.7.173	██████████	3
114.108.49.125	██████████	2
27.119.7.116	██████████	2
218.209.139.94	█████████	2
114.108.0.125	██████████	2
222.251.250.72	█████████	1

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Peers

There is 1 peer for this ASN.

Peers	Name
AS9318	SK Broadband Co Ltd

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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS9318	SK Broadband Co Ltd

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
218.209.80.1	AS23563 SK Broadband Co Ltd	`1.61ms` from Incheon, KR
114.108.53.1	AS23563 SK Broadband Co Ltd	`2.63ms` from Incheon, KR
218.209.59.1	AS23563 SK Broadband Co Ltd	`2.66ms` from Incheon, KR
119.17.110.255	AS23563 SK Broadband Co Ltd	`2.73ms` from Incheon, KR
114.108.51.1	AS23563 SK Broadband Co Ltd	`2.29ms` from Incheon, KR
119.17.91.1	AS23563 SK Broadband Co Ltd	`2.09ms` from Seoul, KR
121.254.43.0	AS23563 SK Broadband Co Ltd	`2.67ms` from Seoul, KR
114.108.38.1	AS23563 SK Broadband Co Ltd	`2.43ms` from Seoul, KR
218.209.228.1	AS23563 SK Broadband Co Ltd	`2.04ms` from Seoul, KR
114.108.18.165	AS23563 SK Broadband Co Ltd	`6.29ms` from Seoul, KR
121.254.31.157	AS23563 SK Broadband Co Ltd	`2.01ms` from Seoul, KR
121.254.32.137	AS23563 SK Broadband Co Ltd	`2.17ms` from Seoul, KR
218.209.4.73	AS23563 SK Broadband Co Ltd	`1.76ms` from Seoul, KR
218.209.37.1	AS23563 SK Broadband Co Ltd	`2.35ms` from Seoul, KR
114.108.96.1	AS23563 SK Broadband Co Ltd	`2.41ms` from Seoul, KR
27.119.53.1	AS23563 SK Broadband Co Ltd	`2.33ms` from Seoul, KR
222.251.190.1	AS23563 SK Broadband Co Ltd	`2.77ms` from Seoul, KR
222.251.209.255	AS23563 SK Broadband Co Ltd	`2.08ms` from Seoul, KR
222.251.145.86	AS23563 SK Broadband Co Ltd	`2.13ms` from Seoul, KR
218.209.95.176	AS23563 SK Broadband Co Ltd	`9.27ms` from Seoul, KR
218.209.243.151	AS23563 SK Broadband Co Ltd	`2.23ms` from Seoul, KR
27.119.66.1	AS23563 SK Broadband Co Ltd	`2.88ms` from Seoul, KR
218.209.143.137	AS23563 SK Broadband Co Ltd	`2.58ms` from Seoul, KR
222.251.185.0	AS23563 SK Broadband Co Ltd	`1.64ms` from Seoul, KR
27.119.9.56	AS23563 SK Broadband Co Ltd	`8.93ms` 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
45.155.198.75	AS3356 Level 3 Parent, LLC	`1.33ms` from Amsterdam, NL
75.24.193.91	AS7018 AT&T Enterprises, LLC	`1.96ms` from Atlanta, US
121.41.91.155	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.56ms` from Hangzhou, CN
86.115.220.27	AS1759 Telia Finland Oyj	`1.19ms` from Helsinki, FI
14.173.96.235	AS45899 VNPT Corp	`4.34ms` from Ho Chi Minh City, VN
39.104.103.27	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.13ms` from Hohhot, CN
221.161.68.123	AS4766 Korea Telecom	`7.16ms` from Incheon, KR
178.23.163.59	AS34660 Roebuck Group Limited	`3.69ms` from Manchester, GB
75.206.124.203	AS6167 Verizon Business	`15.96ms` from Miami, US
98.58.216.11	AS7922 Comcast Cable Communications, LLC	`11.74ms` from Miami, US
188.187.241.27	AS41843 JSC "ER-Telecom Holding"	`8.73ms` from Novosibirsk, RU
177.66.42.203	AS52843 Magnos A. Both e Cia Ltda	`8.56ms` from Porto Alegre, BR
13.221.24.155	AS14618 Amazon.com, Inc.	`0.40ms` from Reston, US
222.99.52.235	AS4766 Korea Telecom	`1.63ms` from Seoul, KR
177.191.191.59	AS53006 ALGAR TELECOM S/A	`8.02ms` from Uberlandia, BR
213.118.12.235	AS6848 Telenet BV	`7.96ms` from Brussels, BE
65.24.45.139	AS10796 Charter Communications Inc	`8.67ms` from Columbus, US
103.7.6.27	AS149135 SAPO TECHNOLOGY JOINT STOCK COMPANY	`0.20ms` from Hanoi, VN
154.214.107.203	AS139880 OWGELS INTERNATIONAL CO., LIMITED	`1.08ms` from Hong Kong, HK
104.181.199.139	AS7018 AT&T Enterprises, LLC	`2.83ms` from Houston, US
203.114.225.11	AS45697 Universitas Surabaya	`11.78ms` from Jakarta, ID
74.202.5.27	AS3549 Level 3 Parent, LLC	`2.75ms` from Los Angeles, US
126.84.114.139	AS17676 SoftBank Corp.	`14.93ms` from Osaka, JP
183.79.178.123	AS24572 Yahoo Japan	`6.12ms` from Osaka, JP
54.166.58.75	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f2 121.254.21.88

traceroute to 121.254.21.88 (121.254.21.88): 64 hops max, 52 byte packets

2 [] 206.72.210.167 6.486 ms

3 *

4 *

5 *

6 *

7 *

8 *

9 *

10 *

11 [AS23563] 121.254.21.88 135.188 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On January 19th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS23563 at robtex.

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