Best Data Providers for UK and Europe Mobile Numbers in Clay

What data provider in clay has worked best for UK and Europe mobile numbers? I see they vary in credit cost, so keen to try a couple!

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Elias S.
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I'm not sure which worked best on the top of my head but using waterfalls I'm often able to get good coverage in Europe – you often get your credits refunded if they don't find the phone numbers!

Elias S.
·
·
I'm not sure which worked best on the top of my head but using waterfalls I'm often able to get good coverage in Europe – you often get your credits refunded if they don't find the phone numbers!