Here’s a great way to block phone numbers on your cellphone. Of course, it only works for text messaging but could be useful if you get spam on your cellphone.
* AT&T: Log in at mymessages.wireless.att.com. Under Preferences, you’ll see the text-blocking and alias options. Here’s also where you can block messages from specific e-mail addresses or Web sites.
* Verizon Wireless: Log in at vtext.com. Under Text Messaging, click Preferences. Click Text Blocking. You’re offered choices to block text messages from e-mail or from the Web. Here again, you can block specific addresses or Web sites. (Here’s where you set up your aliases, too.)
* Sprint: No auto-blocking is available at all, but you can block specific phone numbers and addresses. To get started, log in at www.sprint.com. On the top navigation bar, click My Online Tools. Under Communication Tools, click Text Messaging. On the Compose a Text Message page, under Text Messaging Options, click Settings & Preferences. In the text box, you can enter a phone number, email address or domain (such as Comcast.net) that you want to block.
* T-Mobile: T-Mobile doesn’t yet offer a “block text messages from the Internet” option. You can block all messages sent by e-mail, though, or permit only messages sent to your phone’s e-mail address or alias, or create filters that block text messages containing certain phrases. It’s all waiting when you log into www.t-mobile.com and click Communication Tools.