HomePrefix Lookup121.78.0.0/16

121.78.0.0/16

🇰🇷
IPv4APNICallocatedNo ROA
CIDR
121.78.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇰🇷 South Korea
City
Gangnam-gu
RIR
APNIC
Status
allocated
Allocated
6/20/2006

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

137 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
121.78.128.0/18AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.64.0/18AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.192.0/18AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.0.0/18AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.224.0/19AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.80.0/20AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.104.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.96.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.128.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.160.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.72.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.144.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.136.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.112.0/21AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.168.0/22AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.172.0/23AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.71.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.21.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.31.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.35.0/24AS9286KINXIDC-AS-KR-KR - KINX Valid—6/13/2026
121.78.38.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.40.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.51.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.53.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.55.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.56.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.59.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.62.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.67.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.68.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.72.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.74.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.75.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.85.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.92.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.135.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.136.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.142.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.151.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.153.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.154.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.155.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.174.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.176.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.181.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.185.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.200.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.216.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.217.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.221.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.222.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.223.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.225.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.226.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.227.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.228.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.229.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.230.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.233.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.236.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.237.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.240.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.242.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.243.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.244.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.246.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.250.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.252.0/24AS9286KINXIDC-AS-KR-KR - KINXNo ROA—6/13/2026
121.78.9.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.3.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.2.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.10.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.4.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.199.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.0.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.70.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.92.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.42.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.5.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.7.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.1.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.137.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.89.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.81.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.224.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.138.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.139.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.141.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.231.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.142.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.156.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.157.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.8.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.54.0/24AS9957KINX-AS-KR - KINXNo ROA—6/13/2026
121.78.23.0/24AS17497LGHL-AS-AP - Liasail Global Hongkong LimitedNo ROA—6/13/2026
121.78.129.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.132.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.133.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.134.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.192.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.144.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.145.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.146.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.147.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.193.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.195.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.196.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.197.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.177.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.178.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.179.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.79.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.87.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.119.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.121.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.122.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.124.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.126.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.127.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.131.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.182.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.93.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.95.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.112.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.113.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.114.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.115.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.116.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.117.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.118.0/24AS17589GABIA-AS-KR-KR - GABIA Inc.No ROA—6/13/2026
121.78.46.0/24AS20940AKAMAI-ASN1 Akamai International B.V.No ROA—6/13/2026
121.78.28.0/24AS21859ZEN-ECN - Zenlayer IncNo ROA—6/13/2026
121.78.64.0/24AS38107CDNETWORKS-AS-KR-KR - CDNetworksNo ROA—6/13/2026
121.78.158.0/24AS45382EHOSTIDC-AS-KR-KR - HostcenterNo ROA—6/13/2026
121.78.48.0/24AS46003KOREACENTER-AS-KR-KR - CONNECTWAVENo ROA—6/13/2026
121.78.159.0/24AS63199CDSC-AS1 - CDS Global Cloud Co., LtdNo ROA—6/13/2026
121.78.27.0/24AS131094HYUNDAIMOTORCO-AS-KR-KR - HYUNDAI MOTOR CONo ROA—6/13/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS9957RADBMAINT-AS463711/13/2023
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CityGangnam-gu
GEThttps://api.ipctl.io/v1/prefix/121.78.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/121.78.0.0/16" | jq