61.78.0.0/24

AS55615 · DOUZONEBIZON

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Summary

Country	South Korea
Domain	kt.com
ASN	AS55615
Registry	APNIC
ID	KORNET

WHOIS Details

inetnum:        61.78.0.0 - 61.81.255.255
netname:        KORNET
descr:          Korea Telecom
admin-c:        IM667-AP
tech-c:         IM667-AP
country:        KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 20170203
source:         APNIC

irt:            IRT-KRNIC-KR
address:        Seoul Songpa-gu Jungdae-ro 135
e-mail:         hostmaster@nic.or.kr
abuse-mailbox:  hostmaster@nic.or.kr
admin-c:        IM574-AP
tech-c:         IM574-AP
auth:           # Filtered
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20150513
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
changed:        hostmaster@nic.or.kr 20170328
source:         APNIC

inetnum:        61.78.0.0 - 61.81.255.255
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.krnic.net.
changed:        hostmaster@nic.or.kr
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
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
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        
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
source:         KRNIC

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

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

IP Address	ASN	Details
61.78.0.46	AS55615 DOUZONEBIZON	`2.67ms` 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
184.19.113.152	AS5650 Frontier Communications of America, Inc.	`7.54ms` from Ashburn, US
49.232.250.72	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.78ms` from Beijing, CN
193.196.55.184	AS553 BelWue-Koordination	`4.98ms` from Frankfurt am Main, DE
192.71.247.248	AS9009 M247 Europe SRL	`0.85ms` from Helsinki, FI
77.96.58.72	AS5089 Virgin Media Limited	`6.15ms` from London, GB
91.126.108.168	AS35699 Adamo Telecom Iberia S.A.	`6.41ms` from Madrid, ES
72.68.101.152	AS701 Verizon Business	`1.42ms` from New York City, US
73.194.122.24	AS7922 Comcast Cable Communications, LLC	`6.25ms` from New York City, US
58.94.246.120	AS4713 NTT Communications Corporation	`16.39ms` from Osaka, JP
191.235.245.72	AS8075 Microsoft Corporation	`0.21ms` from Sao Paulo, BR
183.115.253.72	AS4766 Korea Telecom	`2.17ms` from Seoul, KR
79.125.195.24	AS6821 Makedonski Telekom AD-Skopje	`1.18ms` from Skopje, MK
82.170.231.40	AS1136 KPN B.V.	`1.96ms` from Amsterdam, NL
24.237.65.152	AS8047 GENERAL COMMUNICATION, INC.	`8.72ms` from Anchorage, US
1.1.153.88	AS23969 TOT Public Company Limited	`9.40ms` from Bangkok, TH
186.248.144.40	AS23106 AMERICAN TOWER DO BRASIL-COMUNICAÇÂO MULTIMÍDIA LT	`9.92ms` from Belo Horizonte, BR
104.230.227.152	AS10796 Charter Communications Inc	`6.05ms` from Columbus, US
76.183.119.40	AS11427 Charter Communications Inc	`5.52ms` from Dallas, US
79.248.230.136	AS3320 Deutsche Telekom AG	`2.22ms` from Frankfurt am Main, DE
146.200.200.72	AS6871 Plusnet	`14.70ms` from London, GB
151.16.249.72	AS1267 WIND TRE S.P.A.	`4.03ms` from Milan, IT
186.48.94.40	AS6057 Administracion Nacional de Telecomunicaciones	`1.76ms` from Montevideo, UY
166.0.55.72	AS9009 M247 Europe SRL	`0.31ms` from Montreal, CA
67.245.164.232	AS12271 Charter Communications Inc	`7.62ms` from New York City, US
104.104.178.232	AS16625 Akamai Technologies, Inc.	`0.22ms` from Pittsburgh, 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 61.78.0.1

traceroute to 61.78.0.1 (61.78.0.1): 64 hops max, 52 byte packets

4 [AS3549] 200.196.91.5 1.388 ms

5 *

6 [AS3356] 4.68.37.206 173.559 ms

7 [AS4766] 112.174.87.213 300.981 ms

8 [AS4766] 112.174.91.233 300.766 ms

9 *

10 *

11 *

12 *

13 *

14 [AS55615] 61.78.0.1 299.696 ms

Measurement taken from

IPinfo ProbeNet in Sao Paulo, BR

On August 22nd 2025

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.

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