144.121.0.0/16
46 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 144.121.0.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.27.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.28.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.30.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.31.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.42.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.43.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.44.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.50.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.61.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.62.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.87.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.89.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.90.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.95.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.96.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.102.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.103.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.104.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.105.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.107.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.108.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.113.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.114.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.117.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.120.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.121.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.132.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.136.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.137.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.139.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.141.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.142.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.148.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.149.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.152.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.155.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.157.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.164.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.172.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.180.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.181.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.217.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.218.0/24 | United States (100%) | 1 | 1 | 1 |
| 144.121.224.0/24 | Unknown (100%) | 1 | 1 | 1 |
| 144.121.225.0/24 | United States (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
144.121.0.0 – 144.121.26.255 | AS46887 | Zayo Bandwidth | US |
144.121.27.0 – 144.121.27.255 | AS15027 | Foley Hoag LLP | US |
144.121.28.0 – 144.121.29.255 | AS46887 | Zayo Bandwidth | US |
144.121.30.0 – 144.121.30.255 | AS62653 | Housing Authority Risk Retention Group Inc. | US |
144.121.31.0 – 144.121.41.255 | AS46887 | Zayo Bandwidth | US |
144.121.42.0 – 144.121.42.255 | AS46887 | Zayo Bandwidth | US |
144.121.43.0 – 144.121.43.255 | AS64293 | Mobile Heartbeat | US |
144.121.44.0 – 144.121.49.255 | AS46887 | Zayo Bandwidth | US |
144.121.50.0 – 144.121.60.255 | AS46887 | Zayo Bandwidth | US |
144.121.61.0 – 144.121.61.255 | AS27015 | FRESENIUS MEDICAL CARE HOLDINGS INC | US |
144.121.62.0 – 144.121.86.255 | AS46887 | Zayo Bandwidth | US |
144.121.87.0 – 144.121.88.255 | AS46887 | Zayo Bandwidth | US |
144.121.89.0 – 144.121.89.255 | AS62678 | Horace Mann School | US |
144.121.90.0 – 144.121.94.255 | AS46887 | Zayo Bandwidth | US |
144.121.95.0 – 144.121.95.255 | AS63329 | Marcum LLP | US |
31 more ranges in this block.