[TeenD]

any databases that let you filter with phone numbers?

[Neocousteau]

usphonebook.com is a good place to start

[3lucid]

numlookup is a good one for usa and international #'s

[oRequiem]

Well it's a reverse phone number engine technically.
There are plenty of good ones out there which requires money. But if you're talking about actually sifting through databases, it depends on the databases that got dumped. If you have that collection, you can use sift to manually look for those db dumps.

[John121 Doe121]

familytreenow.com

use their search feature on the top and you can search phone numbers

[gxiul]

had decent luck with thatsthemDOTcom
Good luck!

[oRequiem]

had decent luck with thatsthemDOTcom
Good luck!

yeah, just sadly that site isn't that updated for phone numbers from what I've seen. It's pretty effective on reverse addy lookups and name lookups though. Just not fully updated. It seems like that site got disbanded.

[jaydenkarcz]

USPHONEBOOK is the best one by far, it literally is completely free also. Otherwise Spokeo