1. All IP Ranges
  2. 220.0.0.0/8
  3. 220.73.0.0/16
  4. AS9870  | 220.73.231.0/24

220.73.231.0/24

AS9870  ·  DONG-EUI UNIVERSITY

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Summary

Country South Korea
Domain kt.com
ASN AS9870
Parent Range 220.72.0.0/13
Registry APNIC
ID KORNET

WHOIS Details

inetnum:        220.72.0.0 - 220.79.255.255
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:  2025-11-03T08:15:08Z
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:        220.72.0.0 - 220.79.255.255
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.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

Overlapping Ranges

BGP prefixes that contain 220.73.231.0/24

Range ASN Company Num of IPs
220.72.0.0/13 AS10185 Korea Telecom 524,288
220.72.0.0/13 AS131093 Korea Telecom 524,288
220.72.0.0/13 AS131860 Korea Telecom 524,288
220.72.0.0/13 AS152290 Korea Telecom 524,288
220.72.0.0/13 AS17611 Korea Telecom 524,288
220.72.0.0/13 AS17859 Korea Telecom 524,288
220.72.0.0/13 AS38431 Korea Telecom 524,288
220.72.0.0/13 AS4766 Korea Telecom 524,288
220.72.0.0/13 AS9526 Korea Telecom 524,288
220.72.0.0/13 AS9577 Korea Telecom 524,288
220.72.0.0/13 AS9631 Korea Telecom 524,288
220.72.0.0/13 AS9647 Korea Telecom 524,288
220.72.0.0/13 AS9870 Korea Telecom 524,288

Nearby Ranges

BGP prefixes that overlap with 220.73.0.0/16

Range ASN Company Num of IPs
220.72.0.0/13 AS10185 Korea Telecom 524,288
220.72.0.0/13 AS131093 Korea Telecom 524,288
220.72.0.0/13 AS131860 Korea Telecom 524,288
220.72.0.0/13 AS152290 Korea Telecom 524,288
220.72.0.0/13 AS17611 Korea Telecom 524,288
220.72.0.0/13 AS17859 Korea Telecom 524,288
220.72.0.0/13 AS38431 Korea Telecom 524,288
220.72.0.0/13 AS4766 Korea Telecom 524,288
220.72.0.0/13 AS9526 Korea Telecom 524,288
220.72.0.0/13 AS9577 Korea Telecom 524,288
220.72.0.0/13 AS9631 Korea Telecom 524,288
220.72.0.0/13 AS9647 Korea Telecom 524,288
220.72.0.0/13 AS9870 Korea Telecom 524,288

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
96.61.118.168 AS4181 TDS TELECOM 9.87ms from Atlanta, US
89.82.96.56 AS5410 Bouygues Telecom SA 17.73ms from Aubervilliers, FR
108.130.85.40 AS16509 Amazon.com, Inc. 0.42ms from Dublin, IE
104.17.63.104 AS13335 Cloudflare, Inc. 0.16ms from Johannesburg, ZA
39.45.79.40 AS17557 Pakistan Telecommunication Company Limited 15.58ms from Lahore, PK
132.239.59.88 AS7377 University of California, San Diego 2.77ms from Los Angeles, US
81.38.62.72 AS3352 TELEFONICA DE ESPANA S.A.U. 14.03ms from Madrid, ES
82.29.189.168 AS47583 Hostinger International Limited 0.38ms from Manchester, GB
76.156.73.88 AS7922 Comcast Cable Communications, LLC 7.83ms from Minneapolis, US
104.246.111.72 AS6128 Cablevision Systems Corp. 9.67ms from New York City, US
180.144.57.152 AS17511 OPTAGE Inc. 2.05ms from Osaka, JP
181.39.112.136 AS27947 Telconet S.A 0.72ms from Quito, EC
67.160.123.88 AS7922 Comcast Cable Communications, LLC 2.09ms from Seattle, US
14.70.243.56 AS4766 Korea Telecom 1.66ms from Seoul, KR
58.230.113.72 AS9318 SK Broadband Co Ltd 1.77ms from Seoul, KR
158.181.111.248 AS8821 WWZ Telekom AG (TELEZUG) 3.98ms from Zuerich, CH
75.191.86.216 AS11426 Charter Communications Inc 11.70ms from Ashburn, US
176.218.15.104 AS8386 Vodafone Net Iletisim Hizmetler AS 5.10ms from Istanbul, TR
64.229.4.216 AS577 Bell Canada 5.97ms from Montreal, CA
64.121.35.168 AS6079 RCN 7.70ms from Philadelphia, US
191.40.82.120 AS7738 V tal 1.79ms from Rio de Janeiro, BR
151.56.238.248 AS1267 WIND TRE S.P.A. 10.24ms from Rome, IT
78.36.33.216 AS12389 PJSC Rostelecom 6.81ms from Saint Petersburg, RU
134.79.220.200 AS3671 SLAC National Accelerator Laboratory 1.43ms from San Jose, US
58.198.24.8 AS4538 China Education and Research Network Center 1.89ms from Shanghai, CN

Traceroute

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

$
traceroute -a -n -q1 -m5 220.73.231.30
traceroute to 220.73.231.30 (220.73.231.30): 5 hops max, 52 byte packets
1 [AS51248] 193.161.86.1 0.772 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Veseli nad Moravou, CZ
On

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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