Truecaller
CallApp
Callblock
Allociao
PhoneSocials
Spy Dialer
CallHero
A reverse telephone lookup of unwanted calls

Managed Hosting for developers, entrepreneurs, and businesses like yours

Which is more popular?
Based on our record, Bad Numbers seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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BN
Bad Numbers
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| Website | badnumbers.info | opalstack.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.

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Share your experience with using Bad Numbers and Opalstack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I found a few on badnumbers.info but most are junk. Source: over 4 years ago
This is a personal number, so not a scammer. Unfortunately most of the numbers on badnumbers.info are unmoderated so a lot of non-scams get posted there. Source: almost 5 years ago
The website https://badnumbers.info/ has a big list of active scam numbers. Source: about 5 years ago
Tracking Opalstack since Sep 2023.
When comparing Bad Numbers and Opalstack, you can also consider the following products.

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Free Android app that automatically blocks telemarketing and scam calls, using official regulator data and community reports.
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Social Media Phone Number Search Engine
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Spy Dialer app comes up with an extensive database to enable you to find out the details about the owner of a mobile phone with the help of a phone number or email address.
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