223.28.176.0/21

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:         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 223.28.176.0/21

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

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

IP Address	ASN	Details
223.28.179.1	AS17597 SK Broadband Co Ltd	`1.62ms` from Incheon, KR
223.28.180.255	AS17597 SK Broadband Co Ltd	`1.90ms` from Seoul, KR
223.28.181.1	AS17597 SK Broadband Co Ltd	`1.91ms` from Incheon, KR
223.28.182.1	AS17597 SK Broadband Co Ltd	`1.59ms` from Incheon, KR
223.28.183.255	AS17597 SK Broadband Co Ltd	`1.52ms` from Incheon, KR
223.28.177.1	AS17597 SK Broadband Co Ltd	`2.00ms` from Seoul, KR
223.28.178.255	AS17597 SK Broadband Co Ltd	`1.68ms` from Incheon, KR
223.28.176.255	AS17597 SK Broadband Co Ltd	`1.90ms` 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
35.190.214.69	AS396982 Google LLC	`0.15ms` from Brussels, BE
34.251.134.69	AS16509 Amazon.com, Inc.	`0.22ms` from Dublin, IE
23.231.173.181	AS132839 POWER LINE DATACENTER	`1.04ms` from Hong Kong, HK
218.22.173.85	AS4134 CHINANET-BACKBONE	`5.79ms` from Huai'an, CN
187.138.23.5	AS8151 UNINET	`1.87ms` from Monterrey, MX
182.74.141.181	AS9498 BHARTI Airtel Ltd.	`1.05ms` from Mumbai, IN
27.197.54.5	AS4837 CHINA UNICOM China169 Backbone	`5.25ms` from Qingdao, CN
34.229.141.69	AS14618 Amazon.com, Inc.	`0.45ms` from Reston, US
12.217.161.133	AS7018 AT&T Enterprises, LLC	`3.42ms` from San Jose, US
67.151.155.165	AS7029 Windstream Communications LLC	`0.80ms` from Secaucus, US
221.162.69.21	AS4766 Korea Telecom	`1.23ms` from Seoul, KR
175.232.86.85	AS4766 Korea Telecom	`1.46ms` from Seoul, KR
151.192.26.69	AS9255 Singapore Telecom	`17.17ms` from Singapore, SG
210.63.215.85	AS24154 Asia Pacific Broadband Fixed Lines Co., Ltd.	`7.12ms` from Taipei, TW
67.70.71.85	AS577 Bell Canada	`4.77ms` from Toronto, CA
94.40.115.69	AS20960 TK Telekom sp. z o.o.	`1.15ms` from Warsaw, PL
23.125.5.5	AS7018 AT&T Enterprises, LLC	`5.74ms` from Atlanta, US
196.130.215.197	AS24835 Vodafone Data	`5.67ms` from Cairo, EG
69.175.127.37	AS32475 Internap Holding LLC	`0.77ms` from Chicago, US
82.148.32.21	AS12519 FastNet International Ltd	`1.50ms` from London, GB
137.222.201.213	AS786 Jisc Services Limited	`5.99ms` from London, GB
112.211.89.181	AS9299 Philippine Long Distance Telephone Company	`1.47ms` from Manila, PH
65.51.187.5	AS54004 Cablevision Lightpath LLC	`1.46ms` from New York City, US
67.81.145.245	AS6128 Cablevision Systems Corp.	`2.62ms` from New York City, US
54.80.182.117	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f4 223.28.180.9

traceroute to 223.28.180.9 (223.28.180.9): 64 hops max, 52 byte packets

4 [AS212317] 5.78.0.145 1.123 ms

5 [AS212317] 5.78.0.81 0.742 ms

6 *

7 *

8 *

9 [AS6939] 64.71.188.174 4.514 ms

10 *

11 *

12 *

13 *

14 [AS9318] 218.48.15.122 134.284 ms

15 *

16 *

17 *

18 *

19 [AS17597] 223.28.180.9 129.201 ms

Measurement taken from

IPinfo ProbeNet in Hillsboro, US

On January 19th 2026

What are IP address ranges?

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