158.81.128.0/18
🇺🇸IPv4ARINallocatedNo ROA
CIDR
158.81.128.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇺🇸 United States
City
Houston (Central Business District)
RIR
ARIN
Status
allocated
Allocated
2/18/1992
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not currently announced in BGP. See covering prefix below. | ||||
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.81.136.0/21 | AS55102NRG-NS-2 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.153.0/24 | AS20404AS20404 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.160.0/24 | AS20404AS20404 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.168.0/24 | AS20404AS20404 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.154.0/24 | AS55102NRG-NS-2 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.150.0/24 | AS55102NRG-NS-2 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
| 158.81.128.0/24 | AS55102NRG-NS-2 - NRG Energy, Inc. | No ROA | — | 6/15/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionTexas
CityHouston (Central Business District)
Coordinates29.7591, -95.3677 ↗
API
Open https://api.ipctl.io/v1/prefix/158.81.128.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/158.81.128.0/18" | jq
External Links