223.28.128.0/21

AS17597 · SK Broadband Co Ltd

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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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:        [email protected]
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:         [email protected]
nic-hdl:        IM12-KR
mnt-by:         MNT-KRNIC-AP
changed:        [email protected]
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
223.28.132.1	AS17597 SK Broadband Co Ltd	`1.74ms` from Incheon, KR
223.28.133.0	AS17597 SK Broadband Co Ltd	`1.69ms` from Incheon, KR
223.28.128.255	AS17597 SK Broadband Co Ltd	`1.82ms` from Seoul, KR
223.28.129.255	AS17597 SK Broadband Co Ltd	`1.95ms` from Seoul, KR
223.28.134.255	AS17597 SK Broadband Co Ltd	`1.63ms` from Incheon, KR
223.28.131.255	AS17597 SK Broadband Co Ltd	`1.70ms` from Incheon, KR
223.28.130.255	AS17597 SK Broadband Co Ltd	`1.58ms` from Incheon, KR
223.28.135.1	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
109.229.166.181	AS51997 LLP Asket	`7.11ms` from Astana, KZ
93.221.9.117	AS3320 Deutsche Telekom AG	`4.97ms` from Frankfurt am Main, DE
188.111.179.37	AS3209 Vodafone GmbH	`2.70ms` from Hamburg, DE
76.100.97.117	AS7922 Comcast Cable Communications, LLC	`6.10ms` from Herndon, US
103.44.156.197	AS151712 Multireach Broadband Services Private Limited	`0.40ms` from Kolkata, IN
86.172.250.197	AS2856 British Telecommunications PLC	`3.85ms` from London, GB
174.67.158.21	AS22773 Cox Communications Inc.	`9.84ms` from Los Angeles, US
47.199.63.21	AS5650 Frontier Communications of America, Inc.	`6.59ms` from Miami, US
176.60.214.5	AS25106 Mobile TeleSystems JLLC	`6.17ms` from Minsk, BY
61.175.70.69	AS4134 CHINANET-BACKBONE	`13.76ms` from Nanchang, CN
73.240.201.101	AS7922 Comcast Cable Communications, LLC	`3.57ms` from Portland, US
52.216.140.117	AS16509 Amazon.com, Inc.	`0.57ms` from Reston, US
211.193.179.117	AS4766 Korea Telecom	`6.86ms` from Seoul, KR
115.22.59.229	AS4766 Korea Telecom	`5.83ms` from Seoul, KR
134.119.200.37	AS29066 velia.net Internetdienste GmbH	`0.17ms` from Strasbourg, FR
171.125.82.37	AS4837 CHINA UNICOM China169 Backbone	`4.51ms` from Taiyuan, CN
212.27.69.37	AS8437 Hutchison Drei Austria GmbH	`1.68ms` from Vienna, AT
62.2.189.117	AS6730 Sunrise GmbH	`6.11ms` from Zuerich, CH
52.186.164.53	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
35.248.5.197	AS3549 Level 3 Parent, LLC	`10.13ms` from Atlanta, US
156.194.28.117	AS8452 TE-AS	`8.93ms` from Cairo, EG
172.8.240.85	AS7018 AT&T Enterprises, LLC	`2.51ms` from Chicago, US
122.99.150.149	AS17878 DREAMMARK1	`1.15ms` from Incheon, KR
124.194.32.5	AS3786 LG DACOM Corporation	`1.77ms` from Incheon, KR
182.189.106.213	AS17557 Pakistan Telecommunication Company Limited	`1.74ms` from Karachi, PK

Traceroute

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

traceroute -a -n -q1 -f4 223.28.128.94

traceroute to 223.28.128.94 (223.28.128.94): 64 hops max, 52 byte packets

4 [AS36236] 162.223.9.37 0.301 ms

5 *

6 [AS6939] 184.104.199.246 20.095 ms

7 *

8 [AS6939] 65.19.129.150 31.27 ms

9 *

10 *

11 *

12 *

13 *

14 *

15 *

16 [AS17597] 223.28.128.94 172.808 ms

Measurement taken from

IPinfo ProbeNet in Dallas, US

On January 19th 2026

What are IP address ranges?

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