199.16.216.0/21
🇺🇸CIDR
199.16.216.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Chicago
RIR
ARIN
Status
allocated
Allocated
7/19/2010
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.16.216.0/21 | AS393227RTC-NET - RTC Communications Corp. | Valid | ARINRADB | 5/31/2026 |
Covering Prefix
6 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.16.218.0/23 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
| 199.16.217.0/24 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
| 199.16.216.0/24 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
| 199.16.220.0/24 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
| 199.16.221.0/24 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
| 199.16.222.0/24 | AS393227RTC-NET - RTC Communications Corp. | Valid | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/199.16.216.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.16.216.0/21" | jq
External Links