191.222.40.0/21
🇯🇵CIDR
191.222.40.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Tokyo
RIR
RIPE
Status
assigned
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 191.222.40.0/21 | AS20473AS-VULTR - The Constant Company, LLC | Valid | RADB | 9/11/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 191.222.40.0/24 | AS63793OPSBETTER - Japan OPS Better Co., Ltd. | Invalid | — | 9/11/2026 |
| 191.222.43.0/24 | AS152930LINXIANGLIANG-AS-AP - Lin Xiangliang | Invalid | — | 9/11/2026 |
| 191.222.47.0/24 | AS209888AERIANDI-AS Aeriandi Limited | Invalid | — | 9/11/2026 |
| 191.222.45.0/24 | AS400308ZY - Zyberz LLC | Invalid | — | 9/11/2026 |
| 191.222.42.0/24 | AS402492HOSTCRAM - HostCram | Invalid | — | 9/11/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 191.222.40.0/21 | AS20473 | /24 | ripe |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS20473 | RADB | MAINT-AS20473 | 8/12/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 191.222.40.0/22 | 🇪🇺EU | assigned | |
| 191.222.44.0/23 | 🇪🇺EU | assigned | |
| 191.222.42.0/23 | 🇪🇺EU | assigned | |
| 191.222.47.0/24 | AS209888 | 🇸🇬SG | assigned |
| 191.222.40.0/24 | AS63793 | 🇸🇬SG | assigned |
| 191.222.41.0/24 | 🇪🇺EU | assigned | |
| 191.222.45.0/24 | AS400308 | 🇸🇬SG | assigned |
| 191.222.44.0/24 | 🇪🇺EU | assigned | |
| 191.222.46.0/24 | 🇪🇺EU | assigned |
Geolocation
Country🇯🇵JapanJP
CityTokyo
API
Open https://api.ipctl.io/v1/prefix/191.222.40.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/191.222.40.0/21" | jq
External Links