51.194.40.0/21
🇺🇸CIDR
51.194.40.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
RIR
RIPE
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.194.40.0/21 | AS2856BT-UK-AS British Telecommunications Limited | No ROA | — | 9/11/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 51.194.44.0/24 | AS219427VERTEXCORE-PTE-LTD VERTEXCORE. PTE. LTD. | Invalid | — | 9/11/2026 |
| 51.194.42.0/24 | AS399359MAX - Maxcy | Valid | — | 9/11/2026 |
| 51.194.43.0/24 | AS402265MUTANET - Mutanet LLC | Valid | — | 9/11/2026 |
| 51.194.40.0/24 | AS402265MUTANET - Mutanet LLC | Invalid | — | 9/11/2026 |
| 51.194.41.0/24 | AS402288EEF - Envision EdgeFlow LLC | Invalid | — | 9/11/2026 |
| 51.194.45.0/24 | AS402288EEF - Envision EdgeFlow LLC | Valid | — | 9/11/2026 |
| 51.194.46.0/24 | AS402288EEF - Envision EdgeFlow LLC | Invalid | — | 9/11/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 51.194.42.0/23 | 🇪🇺EU | assigned | |
| 51.194.43.0/24 | AS402265 | 🇸🇬SG | assigned |
| 51.194.47.0/24 | 🇪🇺EU | assigned | |
| 51.194.46.0/24 | AS402288 | 🇸🇬SG | assigned |
| 51.194.44.0/24 | AS219427 | 🇸🇬SG | assigned |
| 51.194.45.0/24 | AS402288 | 🇪🇺EU | assigned |
| 51.194.41.0/24 | AS402288 | 🇸🇬SG | assigned |
| 51.194.42.0/24 | AS399359 | 🇸🇬SG | assigned |
| 51.194.40.0/24 | AS402265 | 🇸🇬SG | assigned |
Geolocation
Country🇺🇸United StatesUS
Coordinates37.0902, -95.7129 ↗
Abuse Contact
API
Open https://api.ipctl.io/v1/prefix/51.194.40.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/51.194.40.0/21" | jq
External Links