/14 Subnet Mask ReferenceIPv4
Four tidy /16s under one summary: that is a /14, masked <code>255.252.0.0</code>, with 262,142 usable addresses. Long-lived institutions often hold several adjacent /16s that summarize into exactly this shape.
/14 facts at a glance
- Subnet mask
- 255.252.0.0
- Wildcard mask
- 0.3.255.255
- Binary mask
- 11111111.11111100.00000000.00000000
- Total addresses
- 262,144
- Usable hosts
- 262,142 (excludes network & broadcast)
- Block size
- 262,144 addresses (218)
- Typical role
- Large enterprise and carrier aggregation
Example /14 networks
Three consecutive /14 blocks, starting at the /14 boundary that contains 198.51.100.0:
| Network | Usable range | Usable hosts |
|---|---|---|
| 198.48.0.0/14 | 198.48.0.1 – 198.51.255.254 | 262,142 |
| 198.52.0.0/14 | 198.52.0.1 – 198.55.255.254 | 262,142 |
| 198.56.0.0/14 | 198.56.0.1 – 198.59.255.254 | 262,142 |
How to calculate a /14 mask
A /14 mask sets the first 14 bits of a 32-bit number to 1 and leaves the remaining 18 bits as 0. In binary that reads 11111111.11111100.00000000.00000000, which converts to dotted decimal 255.252.0.0. Each block covers a contiguous run of 218 = 262,144 addresses, and every block starts at a multiple of that size. The wildcard simply flips every bit, giving 0.3.255.255.
Where /14 is used
- Summarizing four neighboring /16 campus or agency blocks at the border.
- Hierarchical enterprise addressing with one aggregate per business unit.
- Registry-style block bookkeeping and audit documentation.
Example: <code>140.80.0.0/14</code> covers 140.80.0.0 through 140.83.255.255. Alignment check: the second octet of any /14 must be a multiple of four.
Frequently asked questions
What is the subnet mask for /14?
<code>255.252.0.0</code>, wildcard <code>0.3.255.255</code>, which fixes six bits of the second octet.
How many hosts are in a /14?
262,142 usable of 262,144 total addresses.
How many /16s combine into a /14?
Four, provided they are consecutive and the starting second octet is divisible by four.
Open this block in a calculator
Open the /14 block in the subnet calculator