148.128.0.0/11
PublicClass B — /11 prefix — 2,097,150 usable hosts
Network address — the base address of the block (148.128.0.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 148.159.255.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 2,097,150 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.224.0.0 is the dotted-decimal equivalent of /11. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 148.128.0.0/11 |
| Network Address | 148.128.0.0 |
| Broadcast Address | 148.159.255.255 |
| Subnet Mask | 255.224.0.0 |
| Wildcard Mask | 0.31.255.255 |
| Prefix Length | /11 |
| IP Address Class | Class B |
| Total IP Addresses | 2,097,152 |
| Usable Host Addresses | 2,097,150 |
| First Usable IP | 148.128.0.1 |
| Last Usable IP | 148.159.255.254 |
| Network (Hex) | 0x94800000 |
| Broadcast (Hex) | 0x949FFFFF |
| Address Type | Public / Globally Routable |
Binary Representation
The first 11 bits (1s in the mask) identify the network. The remaining 21 bits identify hosts within the network.
Split into Equal Subnets
Split 148.128.0.0/11 into 2 equal /12 subnets (1,048,574 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 148.128.0.0/12 | 148.128.0.0 | 148.128.0.1 | 148.143.255.254 | 148.143.255.255 | 1,048,574 |
| 2 | 148.144.0.0/12 | 148.144.0.0 | 148.144.0.1 | 148.159.255.254 | 148.159.255.255 | 1,048,574 |
Split 148.128.0.0/11 into 4 equal /13 subnets (524,286 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 148.128.0.0/13 | 148.128.0.0 | 148.128.0.1 | 148.135.255.254 | 148.135.255.255 | 524,286 |
| 2 | 148.136.0.0/13 | 148.136.0.0 | 148.136.0.1 | 148.143.255.254 | 148.143.255.255 | 524,286 |
| 3 | 148.144.0.0/13 | 148.144.0.0 | 148.144.0.1 | 148.151.255.254 | 148.151.255.255 | 524,286 |
| 4 | 148.152.0.0/13 | 148.152.0.0 | 148.152.0.1 | 148.159.255.254 | 148.159.255.255 | 524,286 |
Split 148.128.0.0/11 into 8 equal /14 subnets (262,142 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 148.128.0.0/14 | 148.128.0.0 | 148.128.0.1 | 148.131.255.254 | 148.131.255.255 | 262,142 |
| 2 | 148.132.0.0/14 | 148.132.0.0 | 148.132.0.1 | 148.135.255.254 | 148.135.255.255 | 262,142 |
| 3 | 148.136.0.0/14 | 148.136.0.0 | 148.136.0.1 | 148.139.255.254 | 148.139.255.255 | 262,142 |
| 4 | 148.140.0.0/14 | 148.140.0.0 | 148.140.0.1 | 148.143.255.254 | 148.143.255.255 | 262,142 |
| 5 | 148.144.0.0/14 | 148.144.0.0 | 148.144.0.1 | 148.147.255.254 | 148.147.255.255 | 262,142 |
| 6 | 148.148.0.0/14 | 148.148.0.0 | 148.148.0.1 | 148.151.255.254 | 148.151.255.255 | 262,142 |
| 7 | 148.152.0.0/14 | 148.152.0.0 | 148.152.0.1 | 148.155.255.254 | 148.155.255.255 | 262,142 |
| 8 | 148.156.0.0/14 | 148.156.0.0 | 148.156.0.1 | 148.159.255.254 | 148.159.255.255 | 262,142 |
Split 148.128.0.0/11 into 16 equal /15 subnets (131,070 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 148.128.0.0/15 | 148.128.0.0 | 148.128.0.1 | 148.129.255.254 | 148.129.255.255 | 131,070 |
| 2 | 148.130.0.0/15 | 148.130.0.0 | 148.130.0.1 | 148.131.255.254 | 148.131.255.255 | 131,070 |
| 3 | 148.132.0.0/15 | 148.132.0.0 | 148.132.0.1 | 148.133.255.254 | 148.133.255.255 | 131,070 |
| 4 | 148.134.0.0/15 | 148.134.0.0 | 148.134.0.1 | 148.135.255.254 | 148.135.255.255 | 131,070 |
| 5 | 148.136.0.0/15 | 148.136.0.0 | 148.136.0.1 | 148.137.255.254 | 148.137.255.255 | 131,070 |
| 6 | 148.138.0.0/15 | 148.138.0.0 | 148.138.0.1 | 148.139.255.254 | 148.139.255.255 | 131,070 |
| 7 | 148.140.0.0/15 | 148.140.0.0 | 148.140.0.1 | 148.141.255.254 | 148.141.255.255 | 131,070 |
| 8 | 148.142.0.0/15 | 148.142.0.0 | 148.142.0.1 | 148.143.255.254 | 148.143.255.255 | 131,070 |
| 9 | 148.144.0.0/15 | 148.144.0.0 | 148.144.0.1 | 148.145.255.254 | 148.145.255.255 | 131,070 |
| 10 | 148.146.0.0/15 | 148.146.0.0 | 148.146.0.1 | 148.147.255.254 | 148.147.255.255 | 131,070 |
| 11 | 148.148.0.0/15 | 148.148.0.0 | 148.148.0.1 | 148.149.255.254 | 148.149.255.255 | 131,070 |
| 12 | 148.150.0.0/15 | 148.150.0.0 | 148.150.0.1 | 148.151.255.254 | 148.151.255.255 | 131,070 |
| 13 | 148.152.0.0/15 | 148.152.0.0 | 148.152.0.1 | 148.153.255.254 | 148.153.255.255 | 131,070 |
| 14 | 148.154.0.0/15 | 148.154.0.0 | 148.154.0.1 | 148.155.255.254 | 148.155.255.255 | 131,070 |
| 15 | 148.156.0.0/15 | 148.156.0.0 | 148.156.0.1 | 148.157.255.254 | 148.157.255.255 | 131,070 |
| 16 | 148.158.0.0/15 | 148.158.0.0 | 148.158.0.1 | 148.159.255.254 | 148.159.255.255 | 131,070 |