How to Block Mobile Phone Spam
Just when you think you've got junk mail and e-mail spam under control, you might start getting unsolicited text messages on your mobile phone. This can be especially irritating because you normally can't delete a text message without opening it, and in some plans, you might get charged for every text message you receive! Here are some ways to block mobile phone spam, also known as SMS spam or m-spam. They're not perfect, but they might hold you over until spam-blocking technology catches up with mobile phones.
Steps
1.Block all text messages originating from the Internet. Since the majority of mobile phone spam is sent through the Internet (where spammers can text you for free) you can ask your service provider to prevent all Internet messages from reaching your phone. As of June 2008, this feature is offered by T-Mobile, AT&T and Verizon Wireless.
2.Create an alias. If there are some messages you want to receive from the Internet (airline schedules, hotel reservations, etc.), then some providers will allow you to create a unique alias, blocking all messages that are not addressed to your alias. This filters out spammers, who usually find their targets by sending text messages to random numbers (1234557890@txt.company.com). Give your alias address only to the people and website you actually want to receive messages from. As of June 2008, this feature is offered by AT&T, Verizon Wireless and T-Mobile.
* Doing this may inadvertently block replies to your text messages. If the reply-to address isn't your alias and someone replies to your message or e-mail, their message will get blocked because it wasn't sent to your alias.
* If your carrier allows you to block all text messages except when it comes from a specific address, you can create an e-mail account that has good spam filtering software and have your phone only receive messages from that specific e-mail address. Have people text message you at that address, and have all the e-mails from that account forward automatically to your phone.
3.Block a specific number, e-mail address, or website. Most providers offer this option, and it can be useful if the spammer consistently text messages you from the same number or e-mail address, or if they always include their URL in the messages they send. You can also block all (or the majority) of known phone spam numbers for your area according to a user-generated database.
4.Dispute your cell phone bill. If spammers continue to get through, you may be able to convince the carrier to drop the charges associated with those messages. You have a better chance at this if you call as soon as your receive the spam.
Carrier Specific Instructions
In addition to calling your carrier to add these settings, you may also be able to block spam through the carrier website as follows. (Keep in mind that the layout of the website may have changed since this writing, so feel free to update this page as needed.)
* AT&T: Log in at http://mymessages.wireless.att.com. Under Preferences, look for the text-blocking and alias options. You can also block specific addresses and websites.
* Verizon Wireless: Head on over to http://www.verizonwireless.com, and make sure you're logged in first, if not, log in. Under "My Verizon" you should see "My Services", and then under My Services, you should see a list of options, at the bottom of the list should be "Spam Control". Go ahead and click that, and from there you can block up to five numbers and 15 internet emails/domains/etc.
* T-Mobile: Log into http://www.t-mobile.com and go to "My t-mobile" using the t-mobile sites drop down at the top of the page. Now, search for "Change plan or services" and click the link. You will be taken to a page with the section "Your Current Services" where you'll have to click the "change services" button. Here, you can block text messages, instant messages, photo messages, messages sent via e-mail, or even all text messages.
* Sprint: Log in at http://www.sprint.com. On the top navigation bar, move the mouse to hover over "Digital Lounge", then click "Messenging" on the smaller menu that appears. (Alternately, click on "My device & media" and then click on the "Messaging" icon.) Click on the "Block Texts" button under the "Texting" section. Select the "Block messages from all senders in my block list" option. In the text box, enter a phone number, email address or domain (such as Comcast.net) that you want to block. Click the "Add" button. Click the "Save changes" button.
* Virgin Mobile: Check the Messaging Settings page on Virgin Mobile’s website (http://www.virginmobile.com) to block text messages from up to ten telephone numbers or email addresses; you can also change preferences on your handset (VirginXL or VirginXtras > Messaging > Messaging Management).
Tips
* There is software designed to be installed on your phone to filter text messages.This may be the only way to block spam from your own carrier, which is common in countries like Thailand.
* Look at the message in question and determine if the sender is someone you know or not. (Sometimes friends annoy other friends this way.)
Warnings
* Registering your phone on the National Do Not Call Registry only prevents phone calls, not text messages.Source URL: http://gbejadacosta.blogspot.com/2010/12/how-to-block-mobile-phone-spam.html
* Do not respond to text message spam, because usually the first time is random numbers being tested for responses. If you do respond to a spam message, you may inadvertently sign yourself up for additional spam messages as many times spammers can and will sell your digits to other spammers. Don't take their bait.
* Same applies for unknown phone numbers. If, for example, your bank is calling your phone, better hang up and call them back on their official contact numbers. If you are unsure if a number is safe to call back do an internet research.
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