1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.128.0.0/16
  4. AS9647  | 121.128.55.0/24

121.128.55.0/24

AS9647  ·  Seoul Metropolitan Government

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Summary

Country South Korea
Domain kt.com
ASN AS9647
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 121.128.55.0/24

Range ASN Company Num of IPs
121.128.0.0/11 AS9870 Korea Telecom 2,097,152
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

Nearby Ranges

BGP prefixes that overlap with 121.128.0.0/16

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

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

IP Address ASN Details
121.128.55.154 AS9647 Seoul Metropolitan Government 1.64ms 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
103.116.236.8 AS150565 BITS AND BYTE COMMUNICATIONS PVT LTD 0.97ms from Bengaluru, IN
110.32.19.72 AS4804 Microplex PTY LTD 1.97ms from Brisbane, AU
85.234.222.232 AS9031 EDPNET Belgium BV 1.88ms from Brussels, BE
50.82.121.120 AS30036 Mediacom Communications Corp 12.18ms from Chicago, US
67.147.189.200 AS19901 Brightspeed 5.86ms from Durham, US
99.66.140.248 AS7018 AT&T Enterprises, LLC 3.43ms from Houston, US
175.151.27.200 AS4837 CHINA UNICOM China169 Backbone 12.26ms from Liaoyang, CN
86.177.138.72 AS2856 British Telecommunications PLC 2.75ms from London, GB
99.171.96.232 AS7018 AT&T Enterprises, LLC 19.45ms from Los Angeles, US
143.165.41.24 AS2923 TIAA-CREF 12.70ms from Manassas, US
112.203.93.40 AS9299 Philippine Long Distance Telephone Company 1.22ms from Manila, PH
126.119.225.248 AS17676 SoftBank Corp. 11.23ms from Osaka, JP
104.112.138.24 AS16625 Akamai Technologies, Inc. 0.15ms from Osasco, BR
92.149.105.232 AS3215 Orange S.A. 5.69ms from Paris, FR
171.61.94.152 AS24560 Bharti Airtel Ltd., Telemedia Services 2.34ms from Pune, IN
112.254.5.232 AS4837 CHINA UNICOM China169 Backbone 1.18ms from Qingdao, CN
108.186.143.216 AS54600 PEG TECH INC 0.21ms from San Jose, US
69.121.109.184 AS6128 Cablevision Systems Corp. 10.06ms from Secaucus, US
210.123.115.120 AS4766 Korea Telecom 1.40ms from Seoul, KR
59.10.96.168 AS4766 Korea Telecom 1.38ms from Seoul, KR
61.192.206.24 AS10013 FreeBit Co.,Ltd. 3.17ms from Tokyo, JP
213.25.40.200 AS5617 Orange Polska Spolka Akcyjna 0.91ms from Warsaw, PL
152.202.120.24 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 1.25ms from Bogota, CO
124.30.19.120 AS9583 Sify Limited 0.96ms from Delhi, IN
79.255.55.24 AS3320 Deutsche Telekom AG 2.36ms from Duesseldorf, DE

Traceroute

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

$
traceroute -a -n -q1 -f3 -m16 121.128.55.186
traceroute to 121.128.55.186 (121.128.55.186): 16 hops max, 52 byte packets
3 [] 206.197.187.12 1.736 ms
4 *
5 *
6 [AS6939] 64.71.165.22 26.417 ms
7 [AS4766] 112.174.87.1 122.174 ms
8 [AS4766] 112.174.86.145 121.184 ms
9 *
10 *
11 *
12 [AS4766] 211.217.66.82 132.15 ms
13 [AS9647] 202.14.90.137 128.126 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Santa Clara, US
On

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