123.99.77.0/24

AS17857 · SK Broadband Co Ltd

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Summary

Country	South Korea
Domain	skbroadband.com
ASN	AS17857
Parent Range	123.99.64.0/18
Registry	APNIC
ID	TBROAD

WHOIS Details

inetnum:        123.99.64.0 - 123.99.127.255
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:        123.99.64.0 - 123.99.127.255
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 123.99.77.0/24

Range	ASN	Company	Num of IPs
123.99.64.0/18	AS17857	SK Broadband Co Ltd	16,384

Nearby Ranges

BGP prefixes that overlap with 123.99.0.0/16

Range	ASN	Company	Num of IPs
123.99.64.0/18	AS17857	SK Broadband Co Ltd	16,384
123.99.192.0/18	AS58461	Room 1405, Star building, No. 669 Jiefang Avenue,	16,384

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
123.99.77.1	AS17857 SK Broadband Co Ltd	`8.09ms` 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
95.105.189.184	AS15962 Orange Slovensko a.s.	`3.30ms` from Bratislava, SK
88.67.193.40	AS3209 Vodafone GmbH	`18.93ms` from Frankfurt am Main, DE
149.109.143.152	AS25019 Saudi Telecom Company JSC	`5.76ms` from Jeddah, SA
175.151.143.24	AS4837 CHINA UNICOM China169 Backbone	`13.88ms` from Liaoyang, CN
94.61.192.216	AS12353 Vodafone Portugal	`7.11ms` from Lisbon, PT
85.158.184.216	AS208992 Axatel LLC	`0.76ms` from Moscow, RU
75.203.40.120	AS6167 Verizon Business	`14.29ms` from New York City, US
80.135.120.8	AS3320 Deutsche Telekom AG	`4.36ms` from Nuernberg, DE
211.250.190.152	AS4766 Korea Telecom	`1.63ms` from Seoul, KR
52.228.70.8	AS8075 Microsoft Corporation	`0.18ms` from Toronto, CA
196.203.106.88	AS31245 ATI - Agence Tunisienne Internet	`0.30ms` from Tunis, TN
77.231.3.152	AS12430 VODAFONE ESPANA S.A.U.	`5.39ms` from Barcelona, ES
81.215.2.120	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.25ms` from Bursa, TR
89.217.7.40	AS6730 Sunrise GmbH	`3.09ms` from Geneve, CH
82.189.67.200	AS3269 Telecom Italia S.p.A.	`5.01ms` from Milan, IT
163.5.162.8	AS46450 Pilot Fiber, Inc.	`0.76ms` from New York City, US
108.191.151.8	AS33363 Charter Communications, Inc	`12.01ms` from Orlando, US
66.178.170.184	AS36012 HUNTER COMMUNICATIONS	`3.95ms` from Portland, US
112.236.197.248	AS4837 CHINA UNICOM China169 Backbone	`8.37ms` from Qingdao, CN
174.52.202.200	AS7922 Comcast Cable Communications, LLC	`6.27ms` from Salt Lake City, US
106.14.89.184	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.45ms` from Shanghai, CN
217.12.51.8	AS25496 ZSR - ZT Bratislava	`1.03ms` from Bratislava, SK
213.193.155.232	AS3257 GTT Communications Inc.	`4.21ms` from Brussels, BE
83.182.151.232	AS1257 Tele2 Sverige AB	`3.90ms` from Falkenberg, SE
149.29.115.200	AS58658 DXTL	`0.77ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f3 123.99.77.143

traceroute to 123.99.77.143 (123.99.77.143): 64 hops max, 52 byte packets

3 [AS16509] 99.82.13.226 1511.471 ms

4 [AS16509] 99.82.13.227 3.886 ms

5 *

6 *

7 *

8 *

9 [AS17857] 123.99.77.143 21.801 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 6th 2025

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