12.221.0.0/16
26 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 12.221.17.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.18.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.65.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.66.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.74.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.75.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.82.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.83.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.96.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.97.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.116.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.120.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.123.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.124.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.136.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.140.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.144.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.145.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.150.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.151.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.212.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.216.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.217.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.218.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.236.0/24 | United States (100%) | 1 | 1 | 1 |
| 12.221.240.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
12.221.17.0 – 12.221.17.255 | AS2386 | AT&T Enterprises LLC | US |
12.221.18.0 – 12.221.64.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.65.0 – 12.221.65.255 | AS53946 | Henry Mayo Newhall Memorial Hospital | US |
12.221.66.0 – 12.221.73.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.74.0 – 12.221.74.255 | AS46216 | FirmaTRUST Consulting | US |
12.221.75.0 – 12.221.81.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.82.0 – 12.221.82.255 | AS4366 | General Electric Company | US |
12.221.83.0 – 12.221.95.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.96.0 – 12.221.96.255 | AS14230 | ARK Data Centers LLC | US |
12.221.97.0 – 12.221.115.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.116.0 – 12.221.119.255 | AS2386 | AT&T Enterprises LLC | US |
12.221.120.0 – 12.221.122.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.123.0 – 12.221.123.255 | AS398337 | Point Broadband Fiber Holding LLC | US |
12.221.124.0 – 12.221.135.255 | AS7018 | AT&T Enterprises LLC | US |
12.221.136.0 – 12.221.139.255 | AS54638 | NETSOURCE ONE INC | US |
11 more ranges in this block.