158.81.136.0/21
🇺🇸CIDR
158.81.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Houston (Central Business District)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 158.81.136.0/21 | AS55102NRG-NS-2 - NRG Energy, Inc. | No ROA | — | 5/30/2026 |
Origin ASN
AS55102
NRG-NS-2 - NRG Energy, Inc.
Geolocation
Country🇺🇸United StatesUS
RegionTexas
CityHouston (Central Business District)
Coordinates29.7591, -95.3677 ↗
API
Open https://api.ipctl.io/v1/prefix/158.81.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/158.81.136.0/21" | jq
External Links