156.243.40.0/21
🇺🇸CIDR
156.243.40.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Houston
RIR
AFRINIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 156.243.40.0/21 | AS11427TWC-11427-TEXAS - Charter Communications Inc | Valid | RADB | 6/15/2026 |
RPKI ROAs
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 156.243.43.0/24 | 🇺🇸US | assigned | |
| 156.243.44.0/24 | 🇺🇸US | assigned | |
| 156.243.45.0/24 | 🇺🇸US | assigned | |
| 156.243.46.0/24 | 🇺🇸US | assigned | |
| 156.243.40.0/24 | 🇺🇸US | assigned | |
| 156.243.42.0/24 | 🇺🇸US | assigned | |
| 156.243.47.0/24 | 🇺🇸US | assigned | |
| 156.243.41.0/24 | 🇺🇸US | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/156.243.40.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/156.243.40.0/21" | jq
External Links