How to call your leads

The best app to call a list of leads from a spreadsheet

Last updated July 15, 2026

Short answer

The fastest way to call a whole spreadsheet of leads is a power dialer that imports your CSV or Google Sheet and dials each row automatically — you never copy, paste, or click a number again. DialSheet does exactly this for free: upload the file, map the phone column, press start, and it walks the list one call at a time while logging every outcome. Click-to-call extensions and clickable tel: links work for a few calls, but they still make you click every single row.

You have a spreadsheet — a CSV of purchased leads, an exported list from your CRM, a Google Sheet a VA built — and a column of phone numbers. The question isn't "can I call them," it's "what's the least painful way to get through the whole list without copy-pasting numbers into my phone for an hour." There are three real approaches. Only one of them actually calls the list.

The three ways to call a list from a spreadsheet

Approach	How it works	Speed	Cost	Best for
Clickable tel: links	Turn each number into a =HYPERLINK("tel:...") cell and click them one at a time.	Slow	Free	A handful of calls, from your phone.
Click-to-call extension	A browser extension dials the highlighted cell through a softphone.	Slow–medium	Free–$$	Occasional calling without leaving the sheet.
Power dialer (import the list)	Import the whole CSV/Sheet; it auto-dials each row and logs the outcome.	Fast	Free–$$$	Actually calling a whole list of leads.

The trap in most "call from Google Sheets" guides: they show you how to make numbers clickable, not how to get through the list. Clickable is still one-at-a-time.

Why a power dialer beats click-to-call

On a cold list, most numbers don't answer. If you dial by hand, the dead time between calls — finding the next row, copying the number, waiting through rings, hanging up, logging the result — is where the hour goes. A power dialer removes all of it: the moment you end one call it places the next, and it writes the outcome (no answer, voicemail, callback, not interested) straight back to the record. Reps typically get through 2–3× more numbers per hour than manual dialing. If you need to go even faster, a parallel dialer rings several numbers at once and connects you to the first human who picks up — useful on very cold lists where answer rates are low.

For the difference between power, auto, and predictive dialing, see power vs auto vs predictive dialer.

What columns your spreadsheet needs

You don't need a perfect file — a phone number and a name is enough. A clean import looks like this:

Phone — the only required column. Store it as text so nothing gets truncated. E.164 (+14155551234) is ideal; (415) 555-1234 and 4155551234 import fine too.
Name — first/last or a single name field, so the dialer greets the right person.
Company, email, notes — optional, but they ride along into the CRM so you have context on the call.
Time zone or state — optional but useful for staying inside legal calling hours.

How to call a spreadsheet of leads, step by step

Export to CSV. In Google Sheets: File → Download → CSV. In Excel: Save As → CSV. (DialSheet can also import a Google Sheet directly.)
Create a free account and connect a phone number. DialSheet runs on your own Twilio account, so you keep your number and pay wholesale call rates.
Import the file and map the phone column (plus name/company if you have them). Rows become leads instantly.
Scrub if needed. Remove Do-Not-Call numbers before you start (more below).
Press start. The dialer calls the first lead, connects you when someone answers, and advances to the next the moment you hang up or set a disposition.
Work the outcomes. Callbacks, notes, and call history are saved per lead, so tomorrow's follow-ups are already organized.

DialSheet turns a spreadsheet into a call queue — for $0

Upload a CSV or Google Sheet, and DialSheet dials the whole list for you — power dialer, built-in CRM, call logging, and callbacks included. It runs on your own Twilio account, so there are no per-seat fees. Setup takes about five minutes.

Import your list and start calling

What it costs

Most tools that call a list charge $30–169 per user per month, whether you make 10 calls or 1,000. The bring-your-own-carrier approach flips that: you pay your carrier (Twilio) only for the minutes you actually talk — roughly $0.014/minute plus about $1.15/month per phone number — and nothing per seat for the software. For a rep on the phone a couple hours a day that's around $6–8/month instead of a full subscription. See the full breakdown in how much it costs to cold call with Twilio, or compare plans on our pricing page.

Before you call the list: a compliance note

Owning a spreadsheet of numbers doesn't mean every number is safe to call. For U.S. consumer telemarketing you generally must scrub against the National Do Not Call Registry, keep an internal opt-out list, and call only between 8 a.m. and 9 p.m. in the contact's local time. B2B calls are often exempt, but not always. Fines are real — TCPA statutory damages run $500–$1,500 per call. This isn't legal advice; read do you have to scrub the DNC list before cold calling and confirm the rules for your list before you dial.

Common questions

What is the best app to call a list of leads from a spreadsheet?

The best tool is a power dialer that imports your CSV or Google Sheet and dials each number automatically as you finish the previous call, so you never touch the spreadsheet again. DialSheet does this for free on your own Twilio account — you upload the file, map the columns, press start, and it walks the list one call at a time while logging outcomes. Simpler click-to-call browser extensions work too, but they still make you click every single row.

Can you call phone numbers directly from a Google Sheet or Excel file?

Yes. You have three options: (1) make each number a clickable tel: link and call them one by one, (2) add a click-to-call browser extension that dials the highlighted cell, or (3) import the whole sheet into a power dialer that auto-advances through the list. Only the third option actually calls the entire list without you clicking each row.

How do I auto-dial a list of numbers from a CSV?

Export your spreadsheet to CSV, import it into a power or auto dialer, map the phone-number column, and start the session. The dialer places each call, connects you when someone answers, and moves to the next number when you hang up or mark a disposition. A power dialer calls one line at a time; a parallel dialer calls several at once and connects you to whoever picks up first.

Do I need to format the phone numbers in my spreadsheet before calling?

It helps. Store numbers as text (not a number-formatted cell that drops the leading zero or plus) and ideally in E.164 format like +14155551234. Most dialers, including DialSheet, will clean common formats — (415) 555-1234, 415.555.1234, 4155551234 — on import, but a consistent column prevents dropped or misdialed calls.

Is it legal to call a list of leads you uploaded from a spreadsheet?

Calling a list you own is legal, but U.S. telemarketing rules still apply. For consumer calls you generally must scrub against the National Do Not Call Registry, honor internal opt-outs, and call only between 8 a.m. and 9 p.m. in the contact’s local time. B2B calls are often exempt but not always. This is not legal advice — check the rules for your list and jurisdiction before you dial.