/29 Subnet Mask (255.255.255.248)
| Prefix | /29 |
|---|---|
| Subnet mask | 255.255.255.248 |
| Wildcard mask | 0.0.0.7 |
| Binary mask | 11111111.11111111.11111111.11111000 |
| Total addresses | 8 |
| Usable hosts | 6 |
| Host bits | 3 |
| Subnets of /29 in a /24 | 32 |
| Block size | 8 addresses (subnets start every 8 in the last octet) |
e.g. 10.0.0.5/22 or 10.0.0.5 255.255.252.0
| Network address | 192.168.1.0 | |
|---|---|---|
| Broadcast address | 192.168.1.7 | |
| First usable host | 192.168.1.1 | |
| Last usable host | 192.168.1.6 | |
| Total addresses | 8 | |
| Usable hosts | 6 | |
| Subnet mask | 255.255.255.248 | |
| Wildcard mask | 0.0.0.7 | |
| CIDR notation | 192.168.1.0/29 | |
| IP class | Class C (legacy) | |
| Address type | Private (RFC 1918) | |
| IP address (binary) | 11000000.10101000.00000001.00000000 | |
| Subnet mask (binary) | 11111111.11111111.11111111.11111000 |
■ network bits ■ host bits
| Requested hosts | CIDR | First host | Last host | Broadcast | Usable hosts |
|---|
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What is a /29 subnet?
A /29 subnet uses the first 29 bits of an IPv4 address for the network and leaves 3 bits for hosts. Its subnet mask is 255.255.255.248, and it contains 2³ = 8 addresses, of which 6 can be assigned to devices. Typical use: The usual block ISPs assign for 5 public static IPs (6 usable minus the gateway). Use the subnet calculator above to check any /29 network.
/29 subnet example
For 192.168.1.0/29: network address 192.168.1.0, usable hosts 192.168.1.1 – 192.168.1.6, broadcast address 192.168.1.7, wildcard mask 0.0.0.7.
/29 networks in 192.168.1.0/24
A /24 holds 32 /29 networks:
- 192.168.1.0/29
- 192.168.1.8/29
- 192.168.1.16/29
- 192.168.1.24/29
- 192.168.1.32/29
- 192.168.1.40/29
- 192.168.1.48/29
- 192.168.1.56/29
- 192.168.1.64/29
- 192.168.1.72/29
- 192.168.1.80/29
- 192.168.1.88/29
- 192.168.1.96/29
- 192.168.1.104/29
- 192.168.1.112/29
- 192.168.1.120/29
- 192.168.1.248/29
Frequently asked questions
How many usable IPs are in a /29?
6. The block has 8 addresses; the first is the network address and the last is the broadcast address.
What is the subnet mask for /29?
255.255.255.248, or 11111111.11111111.11111111.11111000 in binary.
How many /29 subnets are in a /24?
32 (2⁵), because a /29 uses 5 more network bits than a /24.
What is the difference between /29 and /28?
A /28 (255.255.255.240) is twice as large: 16 addresses and 14 usable hosts, spanning two consecutive /29 blocks such as 192.168.1.0–192.168.1.15.