211.251.217.0/24

AS17584 · Inchon Metropolitan Office Of Education

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Summary

Country	South Korea
Domain	kt.com
ASN	AS17584
Registry	APNIC
ID	KORNET-KR

WHOIS Details

inetnum:        211.251.216.0 - 211.251.223.255
netname:        KORNET
descr:          Korea Telecom
country:        KR
admin-c:        IM667-AP
tech-c:         IM667-AP
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
last-modified:  2025-11-03T08:15:01Z
source:         APNIC

irt:            IRT-KRNIC-KR
address:        9, Jinheung-gil, Naju-si, Jeollanam-do
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:  2025-09-04T01:00:01Z
source:         APNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM667-AP
mnt-by:         MNT-KRNIC-AP
last-modified:  2017-03-28T06:37:04Z
source:         APNIC

inetnum:        211.251.216.0 - 211.251.223.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-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.
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
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.
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
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.
source:         KRNIC

Nearby Ranges

BGP prefixes that overlap with 211.251.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
211.251.217.99	AS17584 Inchon Metropolitan Office Of Education	`21.60ms` 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
97.227.238.136	AS6167 Verizon Business	`12.64ms` from Atlanta, US
197.162.231.168	AS24863 Link Egypt (Link.NET)	`11.10ms` from Cairo, EG
108.128.194.88	AS16509 Amazon.com, Inc.	`0.21ms` from Dublin, IE
217.234.103.24	AS3320 Deutsche Telekom AG	`3.84ms` from Duesseldorf, DE
183.166.110.24	AS4134 CHINANET-BACKBONE	`9.33ms` from Huai'an, CN
195.87.73.248	AS8386 Vodafone Net Iletisim Hizmetler AS	`7.92ms` from Istanbul, TR
204.234.235.40	AS11714 Network Nebraska	`10.41ms` from Lincoln, US
193.136.47.72	AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.	`1.17ms` from Lisbon, PT
86.29.142.216	AS5089 Virgin Media Limited	`8.96ms` from London, GB
195.103.157.168	AS3269 Telecom Italia S.p.A.	`2.02ms` from Milan, IT
5.167.66.200	AS57026 JSC ER-Telecom Holding	`7.47ms` from Samara, RU
121.182.66.104	AS4766 Korea Telecom	`4.93ms` from Seoul, KR
188.171.17.72	AS12946 R Cable y Telecable Telecomunicaciones, S.A.U.	`7.62ms` from A Coruna, ES
96.255.90.232	AS701 Verizon Business	`1.36ms` from Ashburn, US
41.140.65.152	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`5.70ms` from Casablanca, MA
121.136.240.216	AS4766 Korea Telecom	`1.58ms` from Incheon, KR
190.116.134.168	AS12252 America Movil Peru S.A.C.	`0.52ms` from Lima, PE
154.127.208.104	AS36907 TV CABO ANGOLA LDA	`2.07ms` from Luanda, AO
60.138.198.72	AS17676 SoftBank Corp.	`2.33ms` from Osaka, JP
176.161.63.248	AS5410 Bouygues Telecom SA	`6.12ms` from Paris, FR
172.245.39.232	AS36352 HostPapa	`0.28ms` from Santa Clara, US
220.91.142.40	AS4766 Korea Telecom	`5.70ms` from Seoul, KR
121.134.205.248	AS4766 Korea Telecom	`0.93ms` from Seoul, KR
5.138.147.8	AS12389 PJSC Rostelecom	`14.31ms` from Tbilisi, GE
195.21.55.232	AS3257 GTT Communications Inc.	`0.28ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 211.251.217.18

traceroute to 211.251.217.18 (211.251.217.18): 64 hops max, 52 byte packets

1 [AS199524] 82.117.226.1 0.167 ms

2 *

3 *

4 *

5 *

6 *

7 [AS4766] 125.133.143.5 0.672 ms

8 [AS4766] 125.133.143.35 0.625 ms

9 *

10 *

11 *

12 *

13 [AS17584] 211.251.217.18 21.781 ms

Measurement taken from

IPinfo ProbeNet in Incheon, KR

On January 19th 2026

What are IP address ranges?

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