1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.139.0.0/16
  4. AS3786  | 121.139.137.0/24

121.139.137.0/24

AS3786  ·  LG DACOM Corporation

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Summary

Country South Korea
Domain kt.com
ASN AS3786
Parent Range 121.128.0.0/11
Registry APNIC
ID KORNET

WHOIS Details

inetnum:        121.128.0.0 - 121.159.255.255
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:        121.128.0.0 - 121.159.255.255
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

Overlapping Ranges

BGP prefixes that contain 121.139.137.0/24

Range ASN Company Num of IPs
121.128.0.0/11 AS131792 Korea Telecom 2,097,152
121.128.0.0/11 AS152214 Korea Telecom 2,097,152
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.128.0.0/11 AS18333 Korea Telecom 2,097,152
121.128.0.0/11 AS3786 Korea Telecom 2,097,152
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS38126 Korea Telecom 2,097,152
121.128.0.0/11 AS38394 Korea Telecom 2,097,152
121.128.0.0/11 AS38395 Korea Telecom 2,097,152
121.128.0.0/11 AS38399 Korea Telecom 2,097,152
121.128.0.0/11 AS38412 Korea Telecom 2,097,152
121.128.0.0/11 AS38697 Korea Telecom 2,097,152
121.128.0.0/11 AS46002 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9526 Korea Telecom 2,097,152
121.128.0.0/11 AS9530 Korea Telecom 2,097,152
121.128.0.0/11 AS9638 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.128.0.0/11 AS9696 Korea Telecom 2,097,152
121.128.0.0/11 AS9776 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.128.0.0/11 AS9870 Korea Telecom 2,097,152

Nearby Ranges

BGP prefixes that overlap with 121.139.0.0/16

Range ASN Company Num of IPs
121.128.0.0/11 AS131792 Korea Telecom 2,097,152
121.128.0.0/11 AS152214 Korea Telecom 2,097,152
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.128.0.0/11 AS18333 Korea Telecom 2,097,152
121.128.0.0/11 AS3786 Korea Telecom 2,097,152
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS38126 Korea Telecom 2,097,152
121.128.0.0/11 AS38394 Korea Telecom 2,097,152
121.128.0.0/11 AS38395 Korea Telecom 2,097,152
121.128.0.0/11 AS38399 Korea Telecom 2,097,152
121.128.0.0/11 AS38412 Korea Telecom 2,097,152
121.128.0.0/11 AS38697 Korea Telecom 2,097,152
121.128.0.0/11 AS46002 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9526 Korea Telecom 2,097,152
121.128.0.0/11 AS9530 Korea Telecom 2,097,152
121.128.0.0/11 AS9638 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.128.0.0/11 AS9696 Korea Telecom 2,097,152
121.128.0.0/11 AS9776 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.128.0.0/11 AS9870 Korea Telecom 2,097,152

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

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

IP Address ASN Details
121.139.137.149 AS3786 LG DACOM Corporation 6.22ms 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
81.206.206.88 AS1136 KPN B.V. 2.62ms from Amsterdam, NL
4.245.205.72 AS8075 Microsoft Corporation 0.26ms from Dublin, IE
188.53.147.88 AS25019 Saudi Telecom Company JSC 5.17ms from Jeddah, SA
31.120.116.24 AS2856 British Telecommunications PLC 3.42ms from London, GB
186.55.4.56 AS6057 Administracion Nacional de Telecomunicaciones 1.75ms from Montevideo, UY
176.174.56.120 AS5410 Bouygues Telecom SA 8.08ms from Paris, FR
54.90.38.104 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
98.36.44.8 AS7922 Comcast Cable Communications, LLC 8.03ms from Santa Clara, US
61.81.35.184 AS4766 Korea Telecom 4.16ms from Seoul, KR
113.100.229.104 AS140308 CHINATELECOM Guangdong province Zhuhai 5G network 7.23ms from Shenzhen, CN
126.121.111.248 AS17676 SoftBank Corp. 3.03ms from Tokyo, JP
20.48.30.8 AS8075 Microsoft Corporation 0.14ms from Tokyo, JP
112.48.132.24 AS9808 China Mobile Communications Group Co., Ltd. 1.04ms from Xiamen, CN
2.51.199.24 AS5384 Emirates Internet 3.23ms from Al Fujairah City, AE
92.84.151.184 AS9050 Orange Romania S.A. 5.84ms from Bucharest, RO
204.65.22.200 AS1761 General Services Commission 5.73ms from Dallas, US
52.213.247.104 AS16509 Amazon.com, Inc. 0.17ms from Dublin, IE
92.252.34.88 AS9145 EWE TEL GmbH 7.21ms from Hamburg, DE
14.239.92.56 AS45899 VNPT Corp 3.17ms from Hanoi, VN
160.124.182.120 AS132839 POWER LINE DATACENTER 1.04ms from Hong Kong, HK
115.129.209.248 AS7545 TPG Telecom Limited 9.31ms from Melbourne, AU
182.106.225.8 AS4134 CHINANET-BACKBONE 0.86ms from Nanchang, CN
90.79.238.24 AS3215 Orange S.A. 2.16ms from Paris, FR
27.202.96.56 AS4837 CHINA UNICOM China169 Backbone 7.49ms from Qingdao, CN
112.138.21.200 AS10010 TOKAI Communications Corporation 6.60ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f4 -m9 121.139.137.133
traceroute to 121.139.137.133 (121.139.137.133): 9 hops max, 52 byte packets
4 [] 80.81.193.16 32.911 ms
5 [AS3786] 203.233.2.233 199.486 ms
6 [AS3786] 1.208.0.73 248.267 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Riga, LV
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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