HomePrefix Lookup157.72.0.0/13

157.72.0.0/13

🇯🇵
IPv4RIPEassignedNo ROA
CIDR
157.72.0.0/13
IP Version
IPv4
Addresses
524.2K
Mask
/13 (255.248.0.0)
Country
🇯🇵 Japan
City
Chiyoda
RIR
RIPE
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

49 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
157.79.0.0/16AS2514InfoSphere - NTT PC Communications, Inc.No ROA—6/15/2026
157.76.0.0/16AS2907SINET-AS - Research Organization of Information and Systems, National Institute of InformaticsNo ROA—6/15/2026
157.77.0.0/16AS4678FINE - Canon IT Solutions Inc.No ROA—6/15/2026
157.78.0.0/17AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.74.0.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.73.0.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.128.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.73.128.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.72.128.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.0.0/17AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.74.128.0/17AS131932JEIS-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
157.78.128.0/18AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.74.64.0/18AS131932JEIS-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
157.73.0.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.73.64.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.73.128.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.73.192.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.74.0.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.74.128.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.74.192.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.0.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.64.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.128.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.75.192.0/18AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.78.192.0/19AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.72.192.0/19AS131932JEIS-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
157.78.224.0/20AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.72.128.0/20AS131932JEIS-NET - JR East Information Systems CompanyNo ROA—6/15/2026
157.78.240.0/21AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.78.248.0/21AS4725ODN - SoftBank Corp.No ROA—6/15/2026
157.72.48.0/21AS131932JEIS-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
157.72.160.0/21AS131932JEIS-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
157.72.152.0/21AS131932JEIS-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
157.72.44.0/22AS131932JEIS-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
157.72.40.0/22AS131932JEIS-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
157.72.150.0/23AS131932JEIS-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

More Specific Prefixes

9
PrefixASCountryStatus
157.72.0.0/14🇯🇵JPallocated
157.73.0.0/16🇯🇵JPassigned
157.72.0.0/16🇯🇵JPassigned
157.75.0.0/16🇯🇵JPassigned
157.79.0.0/16AS2514🇯🇵JPallocated
157.74.0.0/16🇯🇵JPassigned
157.76.0.0/16AS2907🇯🇵JPallocated
157.78.0.0/16🇯🇵JPallocated
157.77.0.0/16AS4678🇯🇵JPallocated
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda
GEThttps://api.ipctl.io/v1/prefix/157.72.0.0/13

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

curl -s "https://api.ipctl.io/v1/prefix/157.72.0.0/13" | jq