https://instantlocatedemo.loc-aid.com/
It's free.
Your e-mail doesn't matter. Enter a fake one. Leave the birthdate as that 1/1/1960 value.
Click "Test My Mobile" and enter your phone number.
Leave the location as "Least Expensive" (this is the methodology used -- it doesn't cost you any money either way).
Then click "I accept" in the check box and click the FIND button.
The first time, you will get a text message, which you need to respond to with "YES TEST1". This is giving it permission to locate you. You can revoke permission at any time by texting "STOP TEST1" to the same number.
It found me within about a mile of my actual secret location.