The fastest way to find a CFO's phone number is to search a people database for CFOs flagged with a phone, then pull the direct dial by person id. A company switchboard gets you a gatekeeper. A direct dial or mobile gets you the CFO.
TL;DR
- Search for CFOs with
hasPhone: true, size the list for free, then pull numbers only for people you will call. - Time: about 15 minutes for one CFO, about 30 for a list of 500. Cost: 1 LeadOcean record per number pulled.
- Check the calling rules first. The API returns the number, not permission to dial it.
Prerequisites
- A LeadOcean account on the free plan: app.leadocean.io/register. Free gives you 1,000 records for life, every feature and 5 requests a second.
- An API key from the app, exported as
$LEADOCEAN_API_KEY. curlandjq.- A target: a company domain for one CFO, or a filter set for a list.
Step 1: Decide what you need, a switchboard or a direct dial
A main line rings reception. A direct dial or mobile rings the person. CFOs are screened harder than most executives, so the main line rarely works.
LeadOcean returns each number with the source's own type label, such as mobile, direct, office or unknown. Take mobile and direct first. Treat office as a fallback, and a mobile as the number with the strictest calling rules (see Step 5).
Two habits save records. First, pull a number only for the CFOs you will call this week. Second, narrow by headcount band with employeeRange, so you call the companies that fit your offer.
Step 2: Size the CFO list for free
Count before you spend. A count costs 0 records. Ask the MCP tool leadocean_count_leads, or send count=true with limit=1 as query parameters on the search endpoint.
curl -s -X POST "https://api.leadocean.io/v1/people/search?count=true&limit=1" \
-H "x-api-key: $LEADOCEAN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"title": ["CFO"],
"jobLevel": ["C-Team"],
"country": ["US"],
"hasPhone": true
}'meta.total is capped at 100,000 on this call. The MCP count below has no such cap. Check enum spelling with leadocean_list_enum_values, because enum values are exact strings (C-Team, not c-team).
Step 3: Search for CFOs who have a phone on file
Search returns people, one record per row. Filters are arrays, the body is flat JSON, and limit runs 1 to 100.
curl -s -X POST "https://api.leadocean.io/v1/people/search" \
-H "x-api-key: $LEADOCEAN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"title": ["CFO"],
"jobLevel": ["C-Team"],
"country": ["US"],
"employeeRange": ["51-200"],
"hasPhone": true,
"limit": 25
}' | jq '.meta, (.data | length)'Page on with meta.nextCursor. One search stops at 10,000 rows (meta.depthCapped), so narrow by industry or headcount instead of paging deeper. To find one named company's CFO, use GET /v1/companies/{domain}/people and filter the title.
Step 4: Pull the direct dial
Spend records last. Counting and filtering are free, and each phone pull is one record, so a 25-person test batch costs 25 records on the free plan.
Take the person id from meta.source_ids.person_id on a search row and ask for the phone. This costs 1 record per call, including a call that finds nothing.
curl -s "https://api.leadocean.io/v2/people/phone?person_id=1234567" \
-H "x-api-key: $LEADOCEAN_API_KEY" | jqNumbers come back best first. The position in the array is the priority, and best points at the top one.
For a list over a few hundred people, skip the loop. Start an export with POST /v1/exports and the full preset, which includes phone_1_number and phone_2_number. One export takes up to 50,000 rows, and an account gets 500,000 a day. Bulk CSV export is not on Free: it comes with Solo ($97 a month) and Agency ($497 a month, 50k rows a file).
curl -s -X POST "https://api.leadocean.io/v1/exports" \
-H "x-api-key: $LEADOCEAN_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"name": "us-cfos-with-phone",
"filters": { "title": ["CFO"], "jobLevel": ["C-Team"], "country": ["US"], "hasPhone": true },
"limit": 500,
"preset": "full",
"reveal": "email_phone"
}'Poll GET /v1/exports/{id}, then fetch GET /v1/exports/{id}/download. You can build the same export in the app: filter builder, column picker, price preview, then download.
Step 5: Check what you may call before you dial
Having a number is not the same as being allowed to call it. The rules differ by country, by whether the line is a mobile, and by whether you use an autodialer or a recorded message.
- The API does not return a do-not-call flag. The v2 phone endpoint omits
dncon purpose, because the field is unpopulated at source. Its absence is not clearance. - Run your own list through the registries that apply to you before a campaign.
- In the US, the FTC's Telemarketing Sales Rule exempts most calls to a business, including from its Do Not Call provisions. The exemption does not cover calls selling nondurable office or cleaning supplies, and the ban on misrepresentation still applies (16 CFR 310.6(b)(7), checked October 2026).
- A CFO's personal mobile can carry stricter rules than calls to a business line. Ask your counsel, and keep a suppression list.
This is not legal advice.
What you get
Expect a short list, not a dump. Every row in the slice below has a phone flag, and some pulls will return an office line rather than a direct dial. Sort by the type field and call direct and mobile first.
A free count run on 2026-10-21 with leadocean_count_leads (title CFO, job level C-Team, country US, hasPhone true). It is a phone-flag count. It is not a verified-number count.
{
"total": 157469,
"totalIsExact": true,
"distinctCompanies": 101093,
"credits": 0,
"facets": {
"country": [{ "value": "US", "count": 157469 }],
"seniority": [
{ "value": "c_suite", "count": 151919 },
{ "value": "owner", "count": 5550 }
]
}
}The phone call returns this shape. It is the response shape from the API reference, with placeholder values.
{
"success": true,
"data": {
"found": true,
"phones": [
{ "phone": "+1 415 555 0133", "type": "direct" },
{ "phone": "+1 415 555 0134", "type": "office" }
],
"best": { "phone": "+1 415 555 0133", "type": "direct" }
}
}The title match is a keyword match, so some rows are owners who also hold the CFO title. Read the title column before you dial.
Troubleshooting
| Error | Cause | Fix |
|---|---|---|
| 401 | Missing or wrong x-api-key header | Re-export $LEADOCEAN_API_KEY from the app's API keys page |
| 429 | Above your plan's rate limit (5 a second on Free, 200 on Agency) | Wait for the Retry-After header, then slow the loop |
| 402 | Out of records. Free is 1,000 for life | Check GET /v1/usage, or move to a paid plan |
| Empty results | A bad enum value, such as c-team | Look up exact strings with leadocean_list_enum_values |
found: false on the phone call | No number held for that person | Skip them. The call still costs 1 record |
| 400 on an export | Over the 50,000-row ceiling, or a filter that cannot be applied | Lower limit or split the filter set |
FAQ
Is a CFO's direct dial better than the company main line?
Yes. A main line routes through reception, and finance leaders are often screened. A direct dial or mobile skips that step.
Can I find a CFO's number from a LinkedIn URL?
Yes. GET /v2/people/phone accepts linkedin_url as well as person_id. It costs 1 record per call.
How do I find a CFO's number at scale?
Search with hasPhone: true, size the list for free, then run POST /v1/exports with phone columns. The full preset includes up to 2 phones per person by default.
Does LeadOcean tell me if a number is on a do-not-call list?
No. The phone endpoint does not return a dnc field. Check your own list against the registries that apply to your market.
Can I use this for other titles?
Yes. See how to find a VP of Sales phone number for the same recipe with a different title. For the full phone product, see find phone number and the Claude skill. Plans are on pricing.
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