Internet Tip # 6 - Cellular Phone Number Provider - find out if your friends # is free for you

Created: November 8, 2005
Last Edited: March 2, 2012
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The nice thing about the following table of websites, is that they offer important information for free. Some of them will tell you if a friends cell number is in your cellular network and some of them will do a reverse phone look up.

From Telephone Number Identification

This amazing service has so far determined the correct current wireless carrier and the correct original wireless carrier for many different cellular phone numbers.


NOTE: As of 12/01/2010 whitepages carrier lookup no longer works!!
Find out which carrier a cell phone number belongs to: It has correctly discovered the correct carrier for Sprint Nextel, AT&T, Verizon Wireless, and T-Mobile USA phone numbers. Find out if your friends number is on your same carrier so you know you can call them for free.

From Cingular/AT & T:

The above web page from Cingular/AT&T lets you enter in your friends phone numbers and then it tells you if they are part of the AT&T wireless cellular network or not.

The instructions at AT&T wireless are login and click on Message Center. In the right hand column look for Mobile to Mobile. Direct Link:

From Verizon Wireless:

The above web page from Verizon Wireless lets you enter in your friends phone numbers and then it tells you if they are part of the Verizon Wireless cellular network or not. (If the are IN)

The above web pages from the cellular companies are great services in my opinion. If you know of a similar service from other cellular providers then please email me at


Make and take a lot of calls from your cellular phone? This tool isn't as handy as it used to be because of number portability (you can now take your number from one cell provider to a new provider). But if you want to know if the phone number might be in your network, type it in at the above website.

The above website will tell you what carrier that number was originally sold to. If it is in your network you might be able to call this person without being charged.

The above web site is also useful if you didn't answer your phone because you didn't know who was calling. Type the number in at and if it is a listed number it will tell you the name of the person or business or at at least the city and state.


The above web page has a field under "Reverse Phone Lookup". If you enter a phone number there, it seems to have a better chance of finding out who owns the number then does.

Who Called Us

The phone is ringing and you do no recognize the number. The above site can help you figure out who is calling and what they want, especially if they are a telemarketer.

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User Comments

There are 45 comments.

Displaying first 20 comments.

1. Posted By: MP - - April 10, 2007, 5:57 am

One more resource that helps to find out who owns a phone number and how they are using it.

2. Posted By: Caroline - - October 4, 2007, 4:04 pm
Reverse Cell Phone Detective Site to help you find the owner of a cell phone number.... good but expensive

3. Posted By: Sean - - October 26, 2007, 4:51 pm
I've been using Who Owns This Phone to find information about cell phone numbers... any other suggestions?

4. Posted By: Terry - - December 2, 2007, 2:46 am
I found a site that claimed to give free reverse cell phone lookups @ - any experience with them?

5. Posted By: David - - December 24, 2007, 8:45 pm
I like there is a free map of the location of the cell phone number.

6. Posted By: Conti - - February 5, 2008, 11:04 pm
The carrier site mentioned is the best but is no longer free. is the only free reverse lookup tool I know of.

7. Posted By: lee simpson - - March 7, 2008, 2:55 pm
Check out They have all the mystery ghost calls in a wiki format. Numberzoom It's a good list of unknown phone numbers.

8. Posted By: Anthony - - March 7, 2008, 5:11 pm
Another website like is

9. Posted By: Caller Complaints - - March 13, 2008, 2:54 pm
Hey All,

Our website is similar to and and provides a free "telemarketer lookup" for users.

10. Posted By: d0s4d1 - - April 6, 2008, 9:25 pm
None of these links or services are going to identify the carrier of a phone number. Number Portability means you can take your number with you to your new carrier, meaning that carrier can no longer be identified by the number prefix. Also there is no real database of cell phone numbers that is national or centralized, so it takes paying a private detective service to track down an owner of a cell phone.

11. Posted By: Kevin - - September 6, 2008, 6:08 am
There is also which allows you to lookup area codes, unlisted phone numbers -- also has news, telemarketer suggestions, and videos.

12. Posted By: Shawn - - September 6, 2008, 6:09 am
There is also which allows you to lookup area codes, unlisted phone numbers -- also has news, telemarketer suggestions, and videos.

13. Posted By: chris - - December 2, 2008, 3:52 pm
None of the above sites can follow a number that has been ported to a new carrier

14. Posted By: Other Chris - - January 18, 2009, 11:04 am
Yes, except for that Verizon one. And the AT&T one that's no longer offered

15. Posted By: Jeff - - January 19, 2009, 1:13 pm
The AT&T one is still offered but you have to login to your AT&T account.

16. Posted By: montana - - April 24, 2009, 3:11 pm
anybody who has a verizon account thats to high i will pay it for you call me at 619-209-1924 or email me at sincerly yours tony montana

17. Posted By: nir - - June 23, 2009, 1:13 pm
Here is a tool that helps you find the vendor by number, it also help you manage your contacts,and many other things, and sits on your desktop!!!

18. Posted By: Andy - - August 20, 2009, 5:11 pm
Overall good post. Cell phone reverse lookups usually take more time, there are also paid directories - some pros and cons are discussed in this post on reverse cell phone lookups.

19. Posted By: Timothy - - March 1, 2010, 4:13 pm
You can also do a reverse cell phone lookup at and look up a cell phone carrier and phone owner address location for free.

20. Posted By: Michael Princeton - - March 7, 2010, 10:29 am
Here is another ineteresting artivle on cell phone lookups