How to Check How Many Leads in an Export Have a Callable Phone Number

To check how many leads in an export have a callable phone number, read every phone column, type each number, and count by country. The lead list phone coverage checker does this for an Apollo, Lusha, Cognism or ZoomInfo CSV: each number is typed from its country's numbering plan, shared numbers are marked as switchboards, and you get the share with a mobile, an own number or nothing, per country.

It runs on the file you upload. Nothing is dialled.

The by-hand way

1. Find every phone column: Mobile Phone, Work Direct Phone, Corporate Phone, Phone 1, Direct Dial.
2. For each lead, mark whether any column holds a number.
3. Count how often each number repeats, and treat repeats as a main line.
4. Split by country.

The repeat count is the step people skip, and it is what separates a real direct line from a company switchboard copied into every contact.

Step 1: export with every phone column

Export the leads with all phone columns and the country column if there is one.

Step 2: upload and set two choices

Pick the default country for numbers with no + and no country, and how many leads must share a number before it counts as a switchboard. Then press Check phone coverage.

Step 3: read the result

You get the overall split, a table per country and the fill rate of each phone column.

Type	What it means
Mobile	The number sits in a range the country's plan allocates to mobiles
Own number	A number only one lead has, though it can still be a main line at a small company
Switchboard	A number shared by as many leads as you set
Nothing	No usable number in any phone column

The downloaded file gets four columns added: best_phone_e164, best_phone_type, phone_coverage and shared_numbers.

Comparing providers

Coverage varies by region. Run each provider's export of the same accounts through the checker and compare the per-country table before you renew a contract. See also counting phone numbers by country and scoring a lead list for completeness.

What this check cannot do

• Mobile versus landline comes from the numbering plan. US and Canadian numbers cannot be told apart from the digits.
• Nothing checks that a number is in service, belongs to the lead or has not been ported.
• Shared numbers are counted inside this file only.
• Phone columns are found by header name, so a column with an unusual name is missed.

For whether a number is live, see checking if a phone number is valid and bulk phone number validation.

Check the emails in the same export

Coverage tells you what you bought. Upload the export on the verify page: the first 100 email checks are free with a Google sign-in, no card. Each address comes back valid, risky or invalid with a reason, and nothing is sent to anyone on the list. For larger or recurring lists, see bulk email verification, list cleaning and pricing.

Check your export now

Open the lead list phone coverage checker.