223.28.128.0/21

AS17597 · SK Broadband Co Ltd

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

Summary

Country	South Korea
Domain	skbroadband.com
ASN	AS17597
Parent Range	223.28.128.0/17
Registry	APNIC
ID	TBROAD

WHOIS Details

inetnum:        223.28.128.0 - 223.28.255.255
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:  2020-12-29T05:46:19Z
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:        223.28.128.0 - 223.28.255.255
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

Overlapping Ranges

BGP prefixes that contain 223.28.128.0/21

Range	ASN	Company	Num of IPs
223.28.128.0/17	AS17597	SK Broadband Co Ltd	32,768

Nearby Ranges

BGP prefixes that overlap with 223.28.0.0/16

Range	ASN	Company	Num of IPs
223.28.128.0/17	AS17597	SK Broadband Co Ltd	32,768
223.28.0.0/17	AS9930	TT DOTCOM SDN BHD	32,768

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

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

IP Address	ASN	Details
223.28.133.0	AS17597 SK Broadband Co Ltd	`1.69ms` from Incheon, KR
223.28.134.255	AS17597 SK Broadband Co Ltd	`1.63ms` from Incheon, KR
223.28.128.255	AS17597 SK Broadband Co Ltd	`1.82ms` from Seoul, KR
223.28.131.255	AS17597 SK Broadband Co Ltd	`1.70ms` from Incheon, KR
223.28.132.1	AS17597 SK Broadband Co Ltd	`1.74ms` from Incheon, KR
223.28.129.255	AS17597 SK Broadband Co Ltd	`1.95ms` from Seoul, KR
223.28.130.255	AS17597 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
223.28.135.255	AS17597 SK Broadband Co Ltd	`1.86ms` 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
108.142.162.53	AS8075 Microsoft Corporation	`0.28ms` from Amsterdam, NL
99.16.93.197	AS7018 AT&T Enterprises, LLC	`6.40ms` from Atlanta, US
106.51.116.37	AS24309 Atria Convergence Technologies Pvt. Ltd. Broadband Internet Service Provider INDIA	`0.63ms` from Chennai, IN
104.134.96.101	AS36411 Google LLC	`0.41ms` from Frankfurt am Main, DE
14.162.74.165	AS45899 VNPT Corp	`2.30ms` from Hanoi, VN
61.92.146.101	AS9269 Hong Kong Broadband Network Ltd.	`0.98ms` from Hong Kong, HK
2.17.71.245	AS16625 Akamai Technologies, Inc.	`0.17ms` from London, GB
109.148.82.101	AS2856 British Telecommunications PLC	`2.84ms` from London, GB
142.213.90.85	AS11489 Bell Canada	`3.54ms` from Montreal, CA
24.103.13.245	AS12271 Charter Communications Inc	`2.23ms` from New York City, US
75.203.124.213	AS6167 Verizon Business	`13.80ms` from New York City, US
15.236.243.21	AS16509 Amazon.com, Inc.	`0.17ms` from Paris, FR
89.80.46.85	AS5410 Bouygues Telecom SA	`1.71ms` from Paris, FR
170.233.196.181	AS265083 UltraWeb Telecomunicações LTDA	`15.84ms` from Porto Alegre, BR
60.240.255.85	AS7545 TPG Telecom Limited	`0.25ms` from Sydney, AU
174.140.181.5	AS33007 NCS Technologies	`9.89ms` from Toronto, CA
79.100.169.37	AS8866 Vivacom Bulgaria EAD	`0.91ms` from Varna, BG
31.21.27.101	AS50266 Odido Netherlands B.V.	`4.94ms` from Amsterdam, NL
86.123.177.149	AS8708 DIGI ROMANIA S.A.	`0.78ms` from Bacau, RO
71.232.235.117	AS7922 Comcast Cable Communications, LLC	`5.86ms` from Boston, US
20.162.22.181	AS8075 Microsoft Corporation	`0.14ms` from Cardiff, GB
121.56.171.37	AS4134 CHINANET-BACKBONE	`3.07ms` from Hohhot, CN
36.62.171.181	AS4134 CHINANET-BACKBONE	`7.18ms` from Huai'an, CN
103.44.156.197	AS151712 Multireach Broadband Services Private Limited	`0.40ms` from Kolkata, IN
109.149.99.213	AS2856 British Telecommunications PLC	`5.13ms` from London, GB

Traceroute

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

traceroute -a -n -q1 223.28.130.120

traceroute to 223.28.130.120 (223.28.130.120): 64 hops max, 52 byte packets

1 [AS199524] 82.117.226.1 0.188 ms

2 *

3 *

4 *

5 [AS9457] 211.45.68.41 0.846 ms

6 [AS9318] 39.120.253.58 1.135 ms

7 [AS9318] 39.120.253.57 1.702 ms

8 *

9 *

10 *

11 *

12 *

13 [AS17597] 223.28.130.120 6.338 ms

Measurement taken from

IPinfo ProbeNet in Incheon, KR

On January 19th 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