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Protect Your Privacy: Randomize MACs & Use VPN

Learn how a random MAC address protects your device from tracking, and how a VPN like Forest VPN adds an extra layer of privacy on public Wi‑Fi.

15 min read
Protect Your Privacy: Randomize MACs & Use VPN

The Chill of a Familiar MAC

Last summer, a friend spotted a familiar MAC address on a public Wi‑Fi log and felt a chill. That tiny string can reveal where we roam, turning our devices into digital breadcrumbs. We’ll break it down, walk through iPhone and Windows 10 steps, explain subnet math, and show how a reliable VPN—Forest VPN—adds a final shield.

What is a private Wi‑Fi address – iPhone

First, let’s grab the IP on an iPhone. Open Settings → Wi‑Fi, tap the info icon, and scroll to IP Address. You’ll see both IPv4 and IPv6. The Private Wi‑Fi Address toggle sits right below; keep it ON to randomize the MAC‑style ID each time you join a network. This feature is Apple’s way of keeping your device from becoming a permanent tag.

What is a private Wi‑Fi address – Windows 10

Now the Windows side. Press Win + R, type cmd, hit Enter. Run ipconfig /all and locate the Wireless LAN adapter section. The IPv4 and IPv6 lines show the same addresses your iPhone receives. The subnet mask and prefix length reveal the network block you’re in. Knowing this helps when troubleshooting or setting static routes.

What is a private Wi‑Fi address – Subnet prefix length

Subnet prefix length is the key to understanding your network’s scope. A /24 means 256 addresses; a /16 expands to 65,536. In IPv6, /64 is common, giving astronomically many addresses. Think of it as the size of a parking lot: the larger the lot, the more cars can fit.

What can be tracked?

Once you know the IP, you might wonder if anyone can still track you. Online IP checkers give a rough location, but they’re often off by miles. For true anonymity, we recommend a VPN. Forest VPN offers affordable plans, multiple server locations, and a user‑friendly interface. It encrypts traffic, hides your IP, and protects against local eavesdroppers.

Check your public IP on whatismyipaddress.com to see your external address.

iOS vs Windows commands

Platform

Command / Steps

iOS

Open Settings → Wi‑Fi → Info (view IP, subnet mask, Private Wi‑Fi toggle)

Windows 10

Run ipconfig /all in Command Prompt (view IPv4/IPv6, subnet mask, prefix length)

Try Forest VPN today

Ready to protect your privacy? Sign up for Forest VPN today and experience reliable, affordable protection.

Keep these tips handy

  • Enable Private Wi‑Fi on public networks.
  • Use a VPN.
  • Double‑check router settings for WPA3.
  • Disable location services for Wi‑Fi when not needed.
  • Update your iOS or Windows to the latest version.
  • Use a strong, unique router password.

What is private Wi‑Fi address? Ever notice your iPhone swapping its street name every time it connects to a new Wi‑Fi network? That's the private Wi‑Fi address, Apple’s way of keeping your device’s fingerprint from lingering like perfume. In this section we’ll explain what it is, show you how to spot it on iOS and Windows 10, and cover why subnet prefix length matters for both troubleshooting and privacy.


What is private Wi‑Fi address: Viewing the address on an iPhone

  1. Open SettingsWi‑Fi.
  2. Tap the i icon beside the connected network.
  3. Scroll to IP Address; you’ll see both IPv4 and IPv6.
  4. Below that, the Private Wi‑Fi Address toggle is visible. Keep it On to randomize.

What is private Wi‑Fi address: Finding the same IP from Windows 10

  1. Press Win + R, type cmd, hit Enter.
  2. Run ipconfig /all.
  3. Locate the Wireless LAN adapter Wi‑Fi section.
  4. Note the IPv4 Address and IPv6 Address lines.
  5. For subnet masks, look for Subnet Mask (IPv4) or the slash notation after the IPv6 address.

What is private Wi‑Fi address: Why subnet prefix length matters

The /24 or /64 you see after an IP tells you how many bits belong to the network. A larger number means a smaller subnet, like a tiny block; a smaller number means a larger neighborhood. Knowing this helps you identify which devices share the same local network and is essential when you’re troubleshooting routing or setting static IPs.


What is private Wi‑Fi address: Quick comparison table

Feature

iOS (Settings)

Windows 10 (Command Prompt)

Open

Settings → Wi‑Fi → i

Win + R → cmd

IP display

Under IP Address

Line: IPv4 Address

IPv6 display

Under IPv6 Address

Line: IPv6 Address

Subnet mask

Under Subnet Mask

Line: Subnet Mask

Private Wi‑Fi toggle

Toggle labeled Private Wi‑Fi Address

Physical Address line (MAC)


What is private Wi‑Fi address: What can be tracked and how to protect yourself

Even with a private Wi‑Fi address, your public IP can still reveal your city or ISP. Use an iPhone IP lookup tool to see the IP your device presents to the internet. If you’re on a corporate network, disabling the private Wi‑Fi toggle might be required for device management, but it opens you up to tracking.

Practical privacy tips:

  • Keep Private Wi‑Fi Address On on public hotspots.
  • Pair it with a reliable VPN like Forest VPN for an extra shield.
  • Disable Wi‑Fi location services if you’re ultra‑privacy‑conscious.
  • Regularly check your router’s firmware and lock it with WPA3.
  • Remember that a /24 subnet on Windows 10 means only 256 addresses share the same local network.
Jane Doe: "Forest VPN kept my data safe while traveling, and it was so easy to set up."

Try Forest VPN today to add an extra layer of protection.

We’ll dive deeper into how VPNs can layer on top of this in the next section.

What’s a private Wi‑Fi address? It’s the unique identifier that changes every time you connect, so your device never leaves a persistent trail. In this step‑by‑step walk‑through we’ll go from Settings → Wi‑Fi → info icon, point out each field, and explain why that toggle matters. Ready to peek inside your device’s network ID?

IPv4 addresses are 32‑bit numbers expressed in decimal dotted notation, while IPv6 addresses are 128‑bit hexadecimal strings. The subnet prefix length, such as /24, tells you how many leading bits define the network segment and determines the number of possible hosts.

What is private wifi address – Step 1: Open the Wi‑Fi Settings

Tap Settings, then Wi‑Fi. Find the green checkmark next to your network and tap the little “i” icon. You’re now in the details screen.

What is private wifi address – Step 2: Locate the IP Details

Scroll down to the IP Address field. Under it you’ll see both IPv4 and IPv6. Below those, the Subnet Mask tells you the network size. The Router field shows the default gateway. All this data tells you what network block your phone is on.

What is private wifi address – Step 3: Find the Private Wi‑Fi Toggle

At the bottom of the screen you’ll see a toggle labeled Private Wi‑Fi Address. Keep it On to randomize the MAC‑style ID each time you join a hotspot. Turning it Off forces your iPhone to use the hardware MAC, which some enterprise networks require. But for most public spots, On protects your privacy.

Quick Screenshot Tip

Want a picture? Press Side + Volume Up on Face‑ID models or Home + Power on older phones. The screenshot appears in Photos, ready to share. Handy when you need to show IT staff the exact settings.

Why This Matters

The view you just saw is your phone’s current network identity. It shows the exact IP your device received, the subnet it belongs to, and the router it talks to. If you’re troubleshooting a connection or checking for rogue access points, this snapshot is invaluable. It also lets you verify that the Private Wi‑Fi toggle is active, giving you a quick privacy check.

Key fields to note

IP Address – your current IPv4 or IPv6. • Subnet Mask – the network size. • Router – the gateway. • Private Wi‑Fi Address – toggle status.

Next Steps

Now that you know how to find the address, you can compare it across different networks. Keep a note of the IPs you see; they should change each time you switch hotspots if the toggle is On. If they stay the same, double‑check the setting. This routine gives you peace of mind while you roam.

If you’re in a corporate environment, check that the same IP range appears on your laptop. Matching subnet masks confirm you’re on the same network segment, which is crucial for troubleshooting. If they differ, you might be on a guest network or a misconfigured VLAN.

What is private wifi address – Step 1: View the IP on your iPhone

Open SettingsWi‑Fi and tap the “i” icon next to your network. The IPv4 Address and IPv6 Address appear under Information. Write down those IP values and note the subnet mask (e.g., 255.255.255.0).

What is private wifi address – Step 2: Find the same IP on a Windows 10 PC

  1. Press Win + R, type cmd, and hit Enter to launch Command Prompt.
  2. Type ipconfig /all and press Enter.
  3. Scroll to the Wireless LAN adapter Wi‑Fi section.
  4. Copy the IPv4 Address and IPv6 Address lines.
  5. Check that the values match what you recorded on the iPhone.

!what is private wifi address command prompt screenshot

The Subnet Mask (e.g., 255.255.255.0) and the Prefix Length (e.g., /64 for IPv6) confirm that both devices share the same subnet.

What is private wifi address – Step 3: Quick lookup and verification

Run netsh interface show interface to list all adapters and their status. This lets you double‑check that the adapter name in Windows matches the one shown on the iPhone.

Comparison Table

<table>
<tr>
<th>Feature</th>
<th>iOS (Settings)</th>
<th>Windows 10 (Command Prompt)</th>
</tr>
<tr>
<td>Open</td>
<td>Settings → Wi‑Fi → “i” icon</td>
<td>Win + R → cmd</td>
</tr>
<tr>
<td>Command</td>
<td>None – UI displays IP</td>
<td>ipconfig /all</td>
</tr>
<tr>
<td>IPv4 Display</td>
<td>Under “IPv4 Address”</td>
<td>Line: IPv4 Address</td>
</tr>
<tr>
<td>IPv6 Display</td>
<td>Under “IPv6 Address”</td>
<td>Line: IPv6 Address</td>
</tr>
<tr>
<td>Subnet Mask</td>
<td>Under “Subnet Mask”</td>
<td>Line: Subnet Mask</td>
</tr>
<tr>
<td>Default Gateway</td>
<td>Under “Router”</td>
<td>Line: Default Gateway</td>
</tr>
</table>

What is private wifi address – Best‑practice recommendations

  • Verify the adapter name in Windows matches the one on the iPhone.
  • Keep the subnet mask and prefix length the same on all devices.
  • Use a VPN (e.g., Forest VPN) to encrypt traffic and hide your IP from third‑party trackers.
  • Turn off Airplane mode only when you really need to, so you don’t get a new IP each time.
  • Check your IP with an online IP checker from time to time to make sure it stays private.

Try Forest VPN today and protect your device’s IP from unwanted tracking.

What is private wifi address: Decoding Subnet Prefix Length on iOS and Windows

What is a private Wi‑Fi address? Those cryptic IP numbers that pop up in your Wi‑Fi settings have a slash right after them. That slash—think /24 or /64—tells you how many bits belong to the network. Once you know that, the string of digits turns into a map of who’s talking to whom on your local block.

What is private wifi address: Decoding the Slash Notation

A prefix length is the number that follows a slash, telling us how many leading bits are fixed for the network.

  • For IPv4, a /24 means 24 bits are network, leaving 8 bits for hosts—256 possible devices.
  • For IPv6, a /64 gives 64 bits for the network and 64 for the host, which is astronomically larger. Think of the prefix as the street name; the rest is the house number.

What is private wifi address: Reading the Prefix on iOS

Open Settings → Wi‑Fi and tap the info icon next to the connected network. Under Subnet Mask you’ll see a dotted decimal like 255.255.255.0. Convert that to a prefix: count the 1‑bits in the mask. 255.255.255.0 equals /24. iOS also shows the prefix directly beside the IPv6 address—just look for the slash.

What is private wifi address: Reading the Prefix on Windows

Launch Command Prompt and run ipconfig /all. Find the section for your wireless adapter. The line Subnet Mask will be listed; use the same conversion trick as on iOS. For IPv6, the address will already include the prefix, e.g., fe80::1ff:fe23:4567:890a/64. Windows displays the prefix inline.

What is private wifi address: Why the Prefix Matters

Knowing your prefix tells you the size of your local network block. A /24 usually means a typical home router; a /16 indicates a larger corporate network. With that knowledge, you can troubleshoot connectivity—if your device reports a /24 but the router is /16, you’ve got a mis‑configured subnet. It also helps gauge exposure: the larger the network, the more devices share the same broadcast domain.

What is private wifi address: Quick‑Reference Cheat Sheet

  • /8 – 16,777,216 hosts (rare public networks)
  • /16 – 65,536 hosts (corporate LANs)
  • /24 – 256 hosts (home routers)
  • /32 – single host (static IP)
  • /64 – 18 quintillion hosts (IPv6 default)

What is private wifi address: Side‑by‑Side Comparison Table

Feature

iOS (Settings)

Windows 10 (Command Prompt)

Open

Settings → Wi‑Fi → ‘i’

Win + R → cmd

IPv4

IPv4 Address

IPv4 Address line

IPv6

IPv6 Address

IPv6 Address line

Subnet

Subnet Mask

Subnet Mask line

Prefix

Shows after slash in IPv6

Shows after slash in IPv6

Gateway

Router

Default Gateway

FAQ about Private Wi‑Fi Address

Q1: Can I hide my private Wi‑Fi address from apps? A: Apps can only see the IP assigned by your router; you can change it by disconnecting or using a VPN, but the device will still have an IP.

Q2: Does the subnet prefix affect my internet speed? A: No, the prefix only defines the address range; speed depends on the router and ISP.

Q3: How can I check if my network is using a /24 or /16? A: Look at the subnet mask in iOS or Windows; /24 corresponds to 255.255.255.0, /16 to 255.255.0.0.

Q4: What if my router shows a different prefix than my device? A: That indicates a misconfiguration; the router and device should share the same network prefix for proper communication.

IPv4 addresses are 32‑bit numbers written in dotted decimal, while IPv6 addresses are 128‑bit numbers written in hexadecimal. The subnet prefix length (for example, /24) tells you how many bits are fixed for the network, which determines how many devices can share that address block.

What is a private Wi‑Fi address? View IP on iPhone

  • Open Settings → tap Wi‑Fi → select the connected network → tap the info icon.
  • The IP address field shows your device’s private Wi‑Fi address.

What is a private Wi‑Fi address? Find IP on Windows 10

  • Open a command prompt and run ipconfig /all.
  • Look for the IPv4 Address under the active network adapter.

Platform

Command

iOS (via Settings)

None – view in Settings > Wi‑Fi > Info

Windows 10

ipconfig /all

What is a private Wi‑Fi address? Subnet Prefix Length

  • The subnet prefix length (e.g., /24) is the number of leading bits that define the network portion of the IP address.
  • On Windows, it appears as Prefix Length in the network adapter details.
  • On iOS, the subnet mask is displayed in the network info screen and can be converted to a prefix length.

What is a private Wi‑Fi address? Online IP Checkers

  • Visit whatismyipaddress.com or ipinfo.io.
  • Click Your IP to see the public IP that the router forwards.
  • The page lists country, city, ISP, and a quick Geo‑IP map.

What is a private Wi‑Fi address? What can be tracked?

  • These tools reveal the public IP but not the private Wi‑Fi address.
  • They provide a geolocation (latitude, longitude, radius).
  • Accuracy ranges: urban 1–5 km, suburban 5–15 km, rural 15–30 km.
  • No MAC or device‑level data is available.

What is a private Wi‑Fi address? Forest VPN for privacy

  • Forest VPN encrypts all traffic, hiding the public IP from ISPs and potential trackers.
  • It offers a free tier, affordable paid plans, and a variety of server locations.
  • Users report fast speeds and reliable connections, making it a convenient choice for everyday privacy.

What is a private Wi‑Fi address? Best‑practice recommendations

  • Verify your public IP with multiple checkers to spot discrepancies.
  • Record timestamps to detect sudden changes.
  • Use a reputable VPN (e.g., Forest VPN) to mask the public IP.
  • Avoid public Wi‑Fi without encryption, or use a VPN when connecting.
  • Keep your device’s software and firmware up to date to prevent leaks.

What is Private Wi‑Fi Address – A Step‑by‑Step Guide for iPhone and Windows

Meta description: Learn what is private wifi address, how to find your IP on iPhone and Windows, understand subnet prefix length, and protect your device from unwanted tracking.

What is Private Wi‑Fi Address? Step 1 – Understanding IPv4 vs IPv6

What is private wifi address? It refers to the internal IP assigned to your device on a local network. IPv4 uses 32‑bit addresses (e.g., 192.168.1.2). IPv6 uses 128‑bit addresses (e.g., fe80::1). Knowing which you have helps you locate your device on a network.

What is Private Wi‑Fi Address? Step 2 – Finding Your IP on iPhone

  1. Open Settings > Wi‑Fi.
  2. Tap the info icon (ℹ️) next to the connected network.
  3. Your IP appears under IP Address.
  4. The Subnet Prefix Length shows how many leading bits belong to the network.

!what is private wifi address iPhone screenshot

What is Private Wi‑Fi Address? Step 3 – Finding Your IP on Windows 10

  1. Open Command Prompt.
  2. Type ipconfig and press Enter.
  3. Look for IPv4 Address under the active Wi‑Fi adapter.
  4. The Subnet Mask indicates the prefix length.

!what is private wifi address command prompt screenshot

What is Private Wi‑Fi Address? Step 4 – Understanding Subnet Prefix Length

The prefix length tells you how many bits of the IP address belong to the network.

  • In IPv4, a common subnet mask is 255.255.255.0 (prefix /24).
  • In IPv6, a typical prefix is /64. Knowing the prefix lets you determine the range of devices on the same network.

What is Private Wi‑Fi Address? Step 5 – Using Online IP Checkers

Visit a site like whatismyipaddress.com or ipinfo.io.

  • Enter your IP to see public location data.
  • Be aware that many services approximate your position to the nearest city.

What is Private Wi‑Fi Address? – What Can Be Tracked?

  • Geolocation: Roughly the city or region.
  • ISP: Your internet service provider.
  • Device type: Whether it’s an iPhone, Windows PC, or other.
  • Time stamps: When the device connects.

Best‑Practice Recommendations

  • Use a VPN to mask your IP.
  • Enable a kill‑switch to stop traffic if the VPN drops.
  • Regularly check your IP after connecting to a network.
  • Avoid public Wi‑Fi for sensitive activities unless protected.

Frequently Asked Questions

Q: How do I find my iPhone IP quickly? A: Settings > Wi‑Fi > ℹ️ > IP Address.

Q: What is the difference between IPv4 and IPv6? A: IPv4 uses 32 bits; IPv6 uses 128 bits.

Q: Can my ISP see my private Wi‑Fi address? A: Yes, they can see the public IP but not the private address on your local network.

Q: Does a VPN hide my IP from local network devices? A: A VPN only hides your public IP; local devices still see your private IP unless you use a local VPN or firewall.

iOS vs Windows Commands Comparison

Platform

Command to View IP

Command to View Subnet

iOS

Settings > Wi‑Fi > ℹ️

Displayed next to IP Address

Windows 10

ipconfig

IPv4 Address & Subnet Mask

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