How to access Facebook Pages?
You can find Facebook Pages in left column on your Facebook home page when you are logged in. If it is not showing you can click on More link to find it.
Then click on create page link as shown in screenshot.
Creating a Facebook Page
On Create a Page screen you will be asked to enter various categories of information to input.
You can choose between Official Page or Community Page.
When you create a page you will see URL in Browser address bar for that page. For example
Customized Facebook Profile URL
If you have customised Facebook Page URL then your ID will not show in URL and your URL will be like http://www.facebook.com/USER_NAME instead.
To find your Facebook Page ID from a Customised URL simply click on your profile picture and it will take you to your profile pictures. On profile pictures area you will see your Facebook Page ID in browser address bar.