Using this tool is as easy as entering any number that you want to check in the search field. ReversePhoneLookUp accepts only U.S. 10-digit numbers as of the moment. The tool will then load for a few seconds to investigate the number, then provide you with detailed data including the the area code, service provider, type of phone, zip code coverage, carrier type and more. The site also shows if the phone number had any complaints filed, and displays a Google Map to show where the phone number is located.

The service is provided free for anyone in the U.S. making it a great alternative for paid services that usually cost from $5 to $15. In addition, there is no limit to how many times you can look up a number. With this free service, there are lots of things you can do, one of which is checking out whether you were given a fake number by a girl or knowing the address of the person who just gave her/his number.

Features:

• Free; no sign up required.
• Unlimited phone lookups.
• Get the name of the owner of the phone number.
• Get the address, zip code, and a map to location.
• Works for landlines and mobile phones.

Check out ReversePhoneLookup @  www.reversephonelookup.com

In most cases, the tool will also display the name of the phone provider. You can also use the tool to gather information for many international numbers as well, but it is important that they are entered in the right format. The tool can also be used with your Google account to identify location of all your contacts and be added to your browser search engine (Firefox, Chrome, Internet Explorer).

Features:

• Identify geographical location for nay phone number.
• Also works for many international numbers.
• Add to your Google account or your browser search engine.
• No registration required.
• Similar tools: Cell Revealer & Phone Lookup, WhitePages, Sullr, Phone Number to Word and Tp2Location.
• Also read related articles:
  Top 8 Sites to Identify The Owner Of A Phone Number
  How To Trace a Mobile Phone Location with Google Latitude

Visit Phone2Location @ www.phone2location.com

The first service is Cell Revealer. It works in a straightforward fashion. You enter the phone number you have and results pop up (if found). Call Revealer performs an actual reverse lookup in the caller ID database to retrieve the information for you while the other sites just provide you with limited information found in phonebooks and other public sources. A limited number of lookups are allowed for free.

If Cell Revealer fails to find your number, you can give Phone Lookup a try.

Both sites work in the same way and work only for numbers in the US. While the success rate of these sites is not 100%, it is still quite impressive. The services are worth a try next time you are being bothered by an anonymous number.

Features:

• Easily find who cell phone number belongs to.
• Simple user friendly procedure.
• Perform an actual reverse lookup in the caller ID rather than just searching the public sources.
• Both sites combine to produce better chance of finding the number’s owner.
• Similar tools: WhitePages, Sullr, Phone Number to Word and Tp2Location.
• Also read related articles:
  Top 8 Sites to Identify The Owner Of A Phone Number
  How To Trace a Mobile Phone Location with Google Latitude.

Check out Cell Revealer @ www.cellrevealer.com and Phone Lookup @ www.phonelookup.com (by MOin from ThumbPress)

Service is free for consumers and paid for businesses. Once you register you can access your account from any Internet enabled device, save your most called companies and frequently used numbers (PINs, account numbers etc.), record calls and more. Sign up to get started.

Watch Fonolo on ABC News:

Features:

• Skip automated phone systems and connect directly to your desired extension.
• One click calling – instantly dial “common actions” for most companies.
• Includes extensive list of companies in its database.
• Quick tones – save your frequently used numbers (account numbers, PINs etc).
• Add frequent calls to a bookmark list and access them with one click.
• Records calls and add notes.
• Phones menus of companies constantly updated as they change.
• Free for consumers. Sign up to start using.
• Similar websites: IVRHacks, DialAHuman and GetHuman.

Check out Fonolo @ www.fonolo.com

Features:

• People Finder: Find the address and phone number for someone within the US.
• Reverse Phone Directory: Shows personal and business data from WhitePages based on the phone nr.
• Weather Lookup: Get weather reports for any city (based on Yahoo! Weather).
• Tiny URL: This function lets you convert long web link to smaller one.
• Business Finder : Find local businesses and service providers. US only.

Go to EggJax @ www.tetonpost.com/egg

Features:

• Find and report annoying unlisted (“name unavailable”) phone numbers.
• Extra: news, articles and videos related to telemarketing and robo-calling.

Check out 800notes @ www.800Notes.com

O’Reilly Radar: “Get a call from an unrecognized number on your cell? Look it up to see who it was, where they are, and who else they called that didn’t like it.”

WhoCalled.us Features

• Lookup ‘name unavailable’ phone numbers.
• See how many other people received calls from the same caller.
• Comment and view comments from others who received calls from particular phone number.
• Browse numbers by: ‘Who called the most’, ‘Most commented’ and ‘Most called state’ (by all time, last 7 days).
• Add new numbers to WhoCalled.us directory.
• Registration is encouraged but not required.

Go to WhoCalled.us [www.WhoCalled.us]

How it works:

1. 1. Go through category list and find the company you need to call.
2. 2. Enter your phone number and wait for the callback from NoPhoneTrees.
3. 3. Pick up and you’re through.

Check out NoPhoneTrees @ www.nophonetrees.com

Sullr Features

• Supported Countries: Argentina, United States, France, Belgium and Italy (maybe more).
• Access Sullr directly from your mobile (wap.sullr.com). Works with iPhone as well.
• Option to view address location on the map.
• Coming soon: Mobile phone reverse lookup.
• More information available on Sullr FAQ page.

Check out Sullr @ (www.sullr.com)

Free411 is a wonderful web service that lists the public phone numbers of businesses and people nationwide – just like the yellow pages. You can type in the name of a person or business along with the city and state they belong to. Alternatively you can select a business category and/or use the zip code to search for phone numbers. Results appear instantly with the person’s/business’s name, address, and phone number.

Free411 also offers a reverse-phone-number-lookup. This helps you find out which person or business a publicly listed phone number belongs to.

Features:

• A user-friendly web service.
• Offers yellow pages functionality.
• Lets you search for address and phone numbers of people and businesses.
• Includes information that is already public.
• Lets you find out who a public phone number belongs to.

Check out Free411 @ www.free411.com (by MOin from Urban Savior)