155.166.40.0/22
🇺🇸CIDR
155.166.40.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
City
Dallas (Dallas Downtown Historic District)
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 155.166.40.0/22 | AS20057ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
Covering Prefix
2 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 155.166.0.0/16 | AS20057ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
| 155.166.0.0/17 | AS20057ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC | No ROA | — | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionTexas
CityDallas (Dallas Downtown Historic District)
Coordinates32.7796, -96.7989 ↗
API
Open https://api.ipctl.io/v1/prefix/155.166.40.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/155.166.40.0/22" | jq
External Links