170.57.0.0/16
🇺🇸CIDR
170.57.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Bellaire (Southwest Houston)
RIR
ARIN
Status
allocated
Allocated
2/18/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 170.57.0.0/16 | AS46298HCHD-AS - Harris County Hospital District | No ROA | RADB | 5/30/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 170.57.252.0/24 | AS13435COMMUNITY-HEALTH-CHOICE - Community Health Choice, Inc. | No ROA | — | 5/30/2026 |
| 170.57.253.0/24 | AS13435COMMUNITY-HEALTH-CHOICE - Community Health Choice, Inc. | No ROA | — | 5/30/2026 |
| 170.57.254.0/24 | AS13435COMMUNITY-HEALTH-CHOICE - Community Health Choice, Inc. | No ROA | — | 5/30/2026 |
| 170.57.101.0/24 | AS46298HCHD-AS - Harris County Hospital District | No ROA | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS46298 | RADB | MAINT-AS302 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/170.57.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/170.57.0.0/16" | jq
External Links