1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.131.0.0/16
  4. AS9856  | 121.131.217.0/24

121.131.217.0/24

AS9856  ·  WOORI Investment @ Securities

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Summary

Country South Korea
Domain kt.com
ASN AS9856
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 121.131.217.0/24

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 121.131.0.0/16

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
121.131.217.132 AS9856 WOORI Investment @ Securities 1.03ms 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
158.101.96.88 AS31898 Oracle Corporation 0.33ms from Ashburn, US
162.224.97.40 AS7018 AT&T Enterprises, LLC 13.48ms from Atlanta, US
27.3.87.216 AS45543 SaiGon Tourist cable Televition Company 3.31ms from Ho Chi Minh City, VN
85.110.162.136 AS9121 Turk Telekomunikasyon Anonim Sirketi 4.32ms from Istanbul, TR
191.22.93.72 AS26599 TELEFÔNICA BRASIL S.A 13.81ms from Joao Pessoa, BR
79.169.110.120 AS2860 NOS COMUNICACOES, S.A. 6.33ms from Lisbon, PT
105.157.27.184 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 19.33ms from Lisbon, PT
192.161.184.56 AS36352 HostPapa 0.35ms from Los Angeles, US
138.226.105.104 AS3257 GTT Communications Inc. 0.97ms from San Jose, US
218.233.3.184 AS9318 SK Broadband Co Ltd 2.03ms from Seoul, KR
39.184.171.104 AS56041 China Mobile communications corporation 6.63ms from Shanghai, CN
43.132.89.104 AS139341 ACE 12.71ms from Singapore, SG
78.109.147.24 AS9198 JSC Kazakhtelecom 2.17ms from Almaty, KZ
85.96.74.168 AS9121 Turk Telekomunikasyon Anonim Sirketi 2.43ms from Istanbul, TR
47.143.51.72 AS5650 Frontier Communications of America, Inc. 2.89ms from Los Angeles, US
105.172.93.248 AS37119 UNITEL SA 1.32ms from Luanda, AO
84.126.157.56 AS6739 VODAFONE ONO, S.A. 5.05ms from Madrid, ES
148.76.59.120 AS6128 Cablevision Systems Corp. 8.13ms from New York City, US
83.25.221.24 AS5617 Orange Polska Spolka Akcyjna 1.96ms from Poznan, PL
38.174.181.120 AS54600 PEG TECH INC 0.32ms from San Jose, US
34.64.133.232 AS396982 Google LLC 0.08ms from Seoul, KR
125.154.75.184 AS4766 Korea Telecom 1.98ms from Seoul, KR
203.230.217.248 AS4766 Korea Telecom 1.35ms from Seoul, KR
1.170.178.24 AS3462 Data Communication Business Group 3.01ms from Taichung, TW
219.121.92.216 AS9595 NTT-ME Corporation 3.24ms 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 121.131.217.2
traceroute to 121.131.217.2 (121.131.217.2): 64 hops max, 52 byte packets
2 *
3 *
5 *
6 *
7 [AS9856] 121.131.217.2 1.628 ms
Measurement taken from IPinfo ProbeNet in Seoul, KR
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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