List of Static IPs - 146 Subnet
Here is a list of used IPs under the 128.153.146 subnet
Used IP Addresses: 2
Available IP Addresses: 252
The 146 subnet is not routable from the 144/23, but is routable from most of the internet.
If you plan to run a service here, please understand that you want to make it secure, since it's on the same broadcast subnet as the Tor-Exit Node.