HomePrefix Lookup157.72.0.0/16

157.72.0.0/16

🇯🇵
IPv4APNICassignedNo ROA
CIDR
157.72.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
APNIC
Status
assigned
Allocated
-

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

22 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
157.72.128.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.0.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.64.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.224.0/19AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.0.0/19AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.192.0/19AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.128.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.48.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.152.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.160.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.176.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.184.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.32.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.56.0/21AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.168.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.172.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.40.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.44.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.144.0/22AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.150.0/23AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.148.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.149.0/24AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda
GEThttps://api.ipctl.io/v1/prefix/157.72.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/157.72.0.0/16" | jq