Data & Signals · Mobile phone numbers

Find the mobile number of 72% of your contacts

Sonik runs a waterfall of data providers to find and verify the direct mobile line of your B2B contacts. Your custom lists land directly in the Sonik dialer, numbers included, so your reps start calling immediately instead of exporting, enriching and re-importing. You only pay for the numbers we find.
Dashboard interface with icons and graphs labeled Past users, Past prospects met, and Past clients.
Key figures

More mobile numbers, more conversations

A single data provider finds a mobile number for a minority of contacts. By cascading through several specialised providers and verifying every line, Sonik finds a reachable mobile for 72% of your contacts.
72
%
Of contacts with a verified mobile number found
0.5
€
Per mobile number found. Nothing when we don't find one
Trusted by teams at
Playventures logo with stylized letter P in blue and white colors.Playventures logo with stylized letter P in blue and white colors.
Convelio wordmark logo in blue color on a white background.
Phone data benchmark

More reachable mobile numbers

A single database stops at its own coverage. A waterfall keeps looking until it finds a line that picks up.

Verified mobile coverage
Sonik waterfall
72%
Typical single provider
30–40%
Sonik figure: average find rate on contacts submitted by our customers. Single-provider range: publicly available industry estimates for one-database lookups.
Digital cards showing profiles of Anna Smith, Daniel Robinson, and Kelly Lomas with emails and phone numbers.
Waterfall enrichment

One request, every provider

Instead of relying on one database, Sonik queries several specialised providers one after the other, prioritising those strongest for the contact's country, until a mobile line is found. One request from you, every source on our side.
Waterfall providers
Country-specific routing
European coverage
GDPR-compliant
Verification

Only numbers that pick up

Every number is checked before it reaches your reps: an active mobile line, an owner that matches the contact, and no duplicate with what is already in your CRM. Landlines and switchboards are filtered out, so reps dial people, not reception desks.
Active mobile lines
Owner match
Deduplication
No landlines
User interface listing new LinkedIn prospects with email, start time, and match scores over 88.
User interface with sections for signals, filters, and actions like Slack, Hubspot, and Google Ads integrations.
Activation

Lists delivered in the dialer, ready to call

No export, no spreadsheet, no re-import. Every custom list you build is delivered immediately in the Sonik dialer with the mobile numbers found, and synced back to HubSpot, Salesforce or Zoho. Reps click Resume calling the moment the data lands, and when a number turns out to be wrong, Sonik looks for a replacement automatically.
Instant delivery in the dialer
CRM sync
Wrong number replacement
Pay per number found
How it works

3 simple steps to mobile numbers

Sync your contacts, let the waterfall find and verify their mobile lines, and start calling. Sonik handles everything in between.
Integrations
Connected
HubSpot
Linkedin
Salesforce
Slack
1

Sync your contacts

CRM, LinkedIn lists or CSV via native connectors
Smiling man with curly hair and beard wearing a black blazer and white shirt against a gray background.
Antoine Leprince
Uber, Office Manager
Verified just now
Mobile found
2

Find and verify mobiles

Waterfall across providers, active mobile lines only, synced back to your CRM
Parallel Dialer
5 dials ongoing
00:03
TR
Thomas R.
Dialing
Smiling woman in business attire with folded arms in a bright office setting.
Lina M.
Dialing
Dialing
SL
Sophie L.
Dialing
3

Dial ×5 faster

Parallel dialer, voicemail skipper, wrong number replacement
Testimonials

Used by 1,000 smart fast sellers

Teams who switched to Sonik will never talk to a voicemail ever again.

"We were averaging 4 or 5 meaningful conversations a day before Sonik. Now we're at 12 per hour. The parallel dialer alone changed everything — but what really made the difference is showing up to every call with context. Our reps stopped sounding like they were reading from a script and started having real conversations. There is no turning back."

Aurélien Admirat
Head of Sales, Alvio

"As an agency, our entire business model depends on how efficiently we can prospect for clients. Sonik fundamentally changed that equation. We identify warm leads before we even pick up the phone, and every call is prepared by the AI. Our conversion rate doubled in the first month. This isn't just a tool — it's a competitive advantage we're not giving up."

Pierre Goarant
Founder, Thinker

"I was skeptical at first — we'd tried other dialers and they all felt like brute force tools. Sonik is different. The intent signals actually work. We're not just calling more people, we're calling the right people at the right time. My team hit quota three months in a row since we switched, and onboarding took less than a week."

Marie Leclerc
SDR Team Lead, Ouest France
"We were averaging 4 or 5 meaningful conversations a day before Sonik. Now we're at 12 per hour. The parallel dialer alone changed everything — but what really made the difference is showing up to every call with context. Our reps stopped sounding like they were reading from a script and started having real conversations. There is no turning back."
Aurélien Admirat
Head of Sales, Alvio
"As an agency, our entire business model depends on how efficiently we can prospect for clients. Sonik fundamentally changed that equation. We identify warm leads before we even pick up the phone, and every call is prepared by the AI. Our conversion rate doubled in the first month. This isn't just a tool — it's a competitive advantage we're not giving up."
Pierre Goarant
Founder, Thinker
"I was skeptical at first — we'd tried other dialers and they all felt like brute force tools. Sonik is different. The intent signals actually work. We're not just calling more people, we're calling the right people at the right time. My team hit quota three months in a row since we switched, and onboarding took less than a week."
Marie Leclerc
SDR Team Lead, Scaleway
More data & signals

Combine mobile numbers with contact-level signals

Mobile numbers are one piece of Data & Signals. Combine them with job changes, social intent, client network and custom intent to call the right person at the right moment.
Dashboard interface showing charts with labels for past users, past prospects met, and past clients.

Job changes

Track and identify past customers, prospects and product users when they move.
Graphic showing four smiling diverse people with text 'Top industry conversations' and '+40' in circles.

Social intent

Identify prospects engaging with your competitors and your topics.
Diagram with three connected people labeled client connexion, worked with investor, and worked with client.

Client network

Identify prospects that worked with your clients, investors and employees.
Diagram showing hiring intent with social post by Anna Smith and ACME job openings for sales rep role.

Custom intent

Track key accounts of your CRM to spot compelling events before your competition.
Man with headset and microphone talking on phone while working at a computer.

SDR

Man with gray beard wearing headphones and a navy sweater speaking while seated at a table.

Sales teams

Portrait of a woman with straight dark hair wearing a dark blue sweater against a dark background.

Marketing

Man with dark hair and beard in navy shirt reviewing documents at desk in an office.

Founders

FAQ

Questions fast sellers ask us about mobile numbers

How does Sonik find mobile phone numbers?
What does 72% mean exactly?
Are the numbers verified?
How much does it cost?
Is it GDPR-compliant?