Ranked October 2026
These are the best email, phone and IP lookup tools of 2026, ranked.
Each list ranks 10 tools on what a buyer gets for the money, using prices and terms read from each vendor's own pages.
- Email verificationThe 10 best email verification tools1Lookup leads at $4.95 per 1,000 checks, and it is the only one that also checks phone numbers and IPs.See the list
- Reverse phone lookupThe 10 best free reverse phone lookup sites1Lookup leads because the free result shows part of the name and the city with no signup.See the list
- Phone validation and HLRThe 10 best phone validation and HLR lookup APIs1Lookup leads because one check returns the carrier, line type, porting, Do Not Call flags and a risk level, with live HLR on the same key.See the list
- IP geolocationThe 10 best IP geolocation APIs1Lookup leads because proxy, VPN and datacenter flags and a fraud score come with every 1-credit lookup.See the list
One 1Lookup account checks emails, phone numbers and IP addresses.
Start with $5 of credits on Starter or $20 on Growth and above.
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Looking for one head-to-head instead? See the full comparison directory or the alternatives guides.