What Is A Class A Private IP Address?

Is 172.16 a public IP? The 172.16.

0.0/12 private network allows the following range of valid IP addresses: 172.16.

0.1 to 172.31.


Is 172.17 a private IP?

IP address 172.17. 0.0 is registered by the Internet Assigned Numbers Authority (IANA) as a part of private network 172.17.

Is 192.168 private or public?

192.168. Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet.

Why is 192.168 always used?

Long story short, we are using 192.168. X.X IP addresses because this is best practice. The IETF has created three IP ranges for private networks, with Class C being the smallest and easiest to control and maintain. This is why most routers use exactly this IP range.

Which private IP range should I use?

One thing I would suggest is to use randomly selected private ranges from the 10.0. 0.0/8 block for all of your private addresses. This avoids lots of problems, particularly when setting up VPNs between home/partner networks and your corporate network. Most home routers (and many corporate setups) use 192.168.

What is an example of a private IP address?

Private addresses include IP addresses from the following subnets: Range from 10.0. 0.0 to 10.255. 255.255 — a 10.0.

How many subnets are in Class A?

The reason you would use this with a Class A mask is because it can give you up to 4,194,304 subnets with two hosts each.

Who can see my IP?

IP addresses are registered on various publicly available databases. Anyone can see your IP when you connect to their websites and online services. For example, a friend might send you a link to a picture hosted on their server. As soon as you see the picture, the person will know your IP address.

How can I get private IP?

Private IP address on Windows To find your private IP on a Windows system, simply open up the command prompt. To do that on Windows 10, type ‘cmd’ in the search box (next to the Start button on the taskbar), and you should see the relevant command prompt app pop up in the suggested results (best match).

What are the 3 major classes of an IP network?

Currently there are three classes of TCP/IP networks. Each class uses the 32-bit IP address space differently, providing more or fewer bits for the network part of the address. These classes are class A, class B, and class C.

How many subnets are in a 24?

Deducting 248 from 256 gives us 8 so the subnets are 0, 8, 16, 24, 32, 40, 48… 240,248.

What is a Class A IP address?

Class A IP addresses support up to 16 million hosts (hosts are devices that connect to a network (computers, servers, switches, routers, printers…etc.) and a Class A network can be divided into 128 different networks. Class B IP addresses are used for medium and large-sized networks in enterprises and organizations.

What are Class A networks?

Class A. Class A addresses are IP addresses that are assigned to network devices, such as computers, and include all addresses in which the first bit of the first octet is set to 0 (zero). … For Class A networks, the first octet represents a network ID that is defined in the address by a subnet mask.

What is a 192.168 IP address?

192.168. 1.1 is a common factory IP address for a consumer-grade router. If the router is used for connecting to the Internet then all computers and devices which access the Internet through it will use this address as their default gateway.

Is IP private?

Any IP address that falls specified ranges is a private IP address and is non-routable on the Internet. These addresses are reserved for use only within private/corporate network and cannot be seen outside the private networks.

What is 23 subnet?

Subnet Mask Cheat SheetAddressesNetmask/ 25128255.255.255.128/ 24256255.255.255.0/ 23512255.255.254.0/ 221024255.255.252.011 more rows

How many 20 subnets are in a 16?

Network BitsSubnet MaskNumber of Subnets/17255.255.128.02 (0)/18255.255.192.04 (2)/19255.255.224.08 (6)/20255.255.240.016 (14)11 more rows•Aug 16, 2003

Is my IP public or private?

Difference between Private and Public IP address:PRIVATE IP ADDRESSPUBLIC IP ADDRESSPrivate IP addresses of the systems connected in a network differ in a uniform manner.Public IP may differ in uniform or non-uniform manner.It works only in LAN.It is used to get internet service.8 more rows•Jul 30, 2019

How do I find my IP range?

Running ipconfig on a Windows PCClick the Start menu.In Search/Run bar, type cmd or command, then press Enter. … In the Command Prompt, type ipconfig or ipconfig/all, then press Enter. … Using the available IP range determined by your router, run a ping command to an address in that range to confirm it is free for use.

Is 172.20 a private IP?

IP address 172.20. 10.1 is registered by the Internet Assigned Numbers Authority (IANA) as a part of private network 172.20.

How do you know what class a network is?

Only 1-126 can be used to identify Class A networks because 0 and 127 are reserved. To find the valid host addresses in a Class A network, you must find the network and broadcast address in the IP range. Since the Class A address only uses the first byte to identify the network, the last three octets are host bits.