There are plenty of reverse phone look-up services that will reveal what type of provider and the name of the carrier for landlines and cell phones. My favorites for these are www.phonelookup.com and www.phonevalidator.com. But what if you need to know the provider for a “toll-free” number, so you can obtain subpoena data? Well I have seen these types of sites come and go pretty regularly, but my current favorite is www.customtollfree.com.
Do you have a perp or subject who you are investigating, but they are not internet savvy enough to be listed on social networks? Well you still need to put a face to the name for possible service or stakeout, right? But hey, you know from their relative or friend that they went to college at “Hard Knocks” University, right? Well a good resource for actual scanned pages of hundreds of yearbooks is right here. Enjoy.