Sunday, January 17, 2010

How to Access Blocked Websites without using Proxy Websites/Unblocking Softwares

Hello Friends,

This post might be useful for SIMSR students for accessing all the websites blocked by the institute without using the unblocking softwares or proxy websites, so that you can get the normal speed which otherwise slows down due to IP routing.

When organizations or institutions block certain websites, they normally block the name of the website like (www.orkut.com) or the ip address of the website like ( 172.67.??.??).
The websites can be accessed by converting the ip address into the corresponding decimal number.

Here is the procedure to unblock anywebiste.

You have to do the process only once for each website and then you can use it for lifetime.

Since facebook is one of the most visited websites and blocked in SIMSR during daytime, therefore i am using this website as an example to let you understand the process


1. First go to the "start menu" and in the search tab type "command prompt" or simply "cmd"

2. Now you need to know the IP address of the website which you want to access. For this type "ping name of the website" (Eg. ping www.facebook.com) and press enter. command prompt will show you the IP address of the website.

3. In my case, the ip address of facebook is 66.220.146.25

4. Now again go to search menu and search for "calculator" or simply "calc". Once the calculator opens, change the view of the calculator from "standard" to "scientific".

5. The IP address is now in the form of octets. So first we need to convert them to binary. For this just type the ip number system from decimal to binary.

In my case 66 = 1000010
220= 11011100
146= 10010010
25= 11001
6. Now since the IP addresses are in Octet form, therefore the corresponding binary numbers should have also 8 digits. If the binary number has less than 8 digits, precede the binary number with zeros so that it becomes 8 digits.

In my case the binary number corresponding to 25 has 5 digits so i will precede with three zeros.
i.e (25 = 00011001)

7. Now put the binary numbers in the same sequence as the numbers in IP address considering that each number has 8 digits.
now 66.220.146.25 = 01000010.11011100.10010010.00011001

8. Now just remove the decimals in between the binary numbers.
Now the number becomes = 01000010110111001001001000011001

9. Now copy this number --> Go to calculator --> select the number system as binary --> paste this binary number --> convert it to decimal by selecting the decimal button

10. The corresponding decimal number for facebook is 1121751577

11. Now to access facebook just type this number after http in the address bar.
Eg. (http://1121751577).

12. Congratulations, you have done it....!!!!

The only benefit of using this procedure instead of any proxy website or unblocking software, is you can get the normal speed.

In organizations also they do not allow to install unblocking softwares and most of the time proxy websites are also banned.

So this can be helpful. Now enjoy :) :)