HomePrefix Lookup157.71.0.0/16

157.71.0.0/16

🇯🇵
IPv4APNICallocatedNo ROA
CIDR
157.71.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
allocated
Allocated
2/10/1992

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

31 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
157.71.128.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.0.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.192.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.32.0/19AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.96.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.176.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.160.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.112.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.144.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.128.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.72.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.8.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.88.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.24.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.4.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.80.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.68.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.2.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.16.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.22.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.66.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.84.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.86.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.65.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.64.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.1.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.21.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.20.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.19.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.18.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.71.0.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda
GEThttps://api.ipctl.io/v1/prefix/157.71.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/157.71.0.0/16" | jq