Give every campaign, ad, and landing page its own phone number. See exactly which marketing source drove each call. No guesswork, no spreadsheets, no manual tagging.
CallScaler call tracking numbers cost $0.50 a month for local and $2 a month for toll-free on the Pro plan. Pay-as-you-go works too, with no monthly minimum. Every number ships with dynamic number insertion and AI summaries; recording is $0.005 a minute and optional transcription is billed at $0.006 per 15-second increment. Agencies and pay-per-call networks running 500 or more numbers get volume pricing on the Agency and Pay Per Call plans.
Written by Curran Van Waarde, Founder, CallScaler
Quick facts about Tracking Numbers
Starting price
7-day free trial
Setup time
Under 60 seconds
Numbers available
Local + toll-free, every US area code
Included free
AI summaries, DNI, attribution
Plans
Pro, Agency, Pay Per Call
Porting
Yes, from any carrier
In-depth guide to Tracking Numbers
What are call tracking numbers?
Call tracking numbers are dedicated phone numbers tied to a specific marketing campaign, ad group, or traffic source. When a caller dials one, the platform logs which source drove the call. They are the starting point of call attribution and the first thing you set up in any call tracking tool.
Number detail card showing the assigned call flow, area code, and $0.50/mo price for a tracking number
How call tracking numbers work in practice
You grab a local or toll-free number and assign it to a source. For example, you might tag (555) 123-4567 to your Google Ads campaign for roof repair and (555) 123-4568 to your Facebook lead gen ads. When someone calls either number, CallScaler routes the call to your real business line and records which source drove it. The caller never knows they dialed a tracking number. For online traffic, you can take this further with dynamic number insertion, which swaps numbers on your website based on how each visitor found you.
Static vs dynamic tracking numbers
Static tracking numbers are assigned one per source and stay fixed. They work for offline channels like billboards, print ads, radio, and direct mail where each medium gets its own number. Dynamic tracking numbers live in a pool that rotates on your website so each visitor session gets a unique number. Dynamic numbers unlock visitor-level attribution, which static numbers cannot do. Most businesses run both. Static for offline, dynamic for online.
How many tracking numbers do I need?
For offline marketing, use one number per channel you want to measure. For website tracking through DNI, the pool size depends on your concurrent traffic. A site with under 500 daily visitors usually runs fine on 10 to 15 numbers. CallScaler recycles numbers after each visitor session expires, so you need fewer than you might expect. Start small and grow your pool as traffic climbs.
What happens to call data?
Every call to a tracking number is logged with source, caller ID, location, duration, recording, AI transcription, AI summary, and lead score. You can search, filter, and export the data from the call log. Push it to Google Ads or Meta to feed conversion bidding, or send it to any tool through webhooks. Call data sits next to form submissions and SMS in the same dashboard for one full view of every lead.
Call log table showing every call tagged by tracking number alongside caller, duration, date, status, spam score, and AI lead score
Setup tips for new tracking numbers
Get the most out of your call tracking numbers from day one:
Pick area codes that match the region you serve, since local numbers get answered more often
Turn on call recording and AI summaries on every number so no call goes unanalyzed
Set up a call flow with voicemail fallback so you never lose a lead to a missed call
Add call whisper so your team hears the lead source before they say hello
Edit Number dialog with name and Call Flow fields — two inputs to source-tag a tracking number
Common use cases by industry
Different industries use tracking numbers in different ways:
Home services companies assign one number per ad platform (Google, Yelp, Angi) and one per mailer or billboard
Law firms track numbers per practice area to see which specialties bring in the most calls
Real estate agencies assign numbers per listing or per agent to measure marketing performance
Pay-per-call networks buy hundreds of numbers at volume pricing and assign them to publishers and offers
Tracking numbers vs your real business number
Tracking numbers forward to your real business line. Callers never know they dialed a tracking number, and your team answers calls the same way they always do. The only difference is that CallScaler logs the source, records the call, and runs AI analysis before connecting. You keep your existing phone system, receptionist, or call center. CallScaler sits in front of it as an attribution layer, not a replacement.
Connecting tracking numbers to your other tools
Tracking numbers are the starting point for everything else in CallScaler. Attach a call flow to route calls through Greeting, Forward, Voicemail, IVR Menu, Round-Robin, or Phone Menu steps. Turn on DNI to swap numbers on your website automatically. Push call conversions to Google Ads or Meta. Every other feature connects back to the tracking number as the base of your call attribution setup.
Call flow editor with Greeting, Forward, and Voicemail steps wired to a tracking number
How it works
From setup to call attribution in four steps.
01
Pick a Number
Choose any local area code or a toll-free number. Browse millions of numbers in your dashboard or grab one through the API.
02
Tag the Source
Assign the number to a campaign, ad group, billboard, or landing page. One number per source keeps your reports clean.
03
Calls Roll In
When someone dials your tracking number, CallScaler routes the call to your real line and logs the source automatically.
04
Read the Data
Every call shows up tagged with source, campaign, and caller info. Push the data to Google Ads, Meta, or your CRM in real time.
CallScaler numbers list with each tracking number tagged to its source — Houston Organic, Dallas FB Leads, Austin Google Ads
Key capabilities
Every tracking number comes fully loaded.
Local and Toll-Free Numbers
Pick from millions of numbers in every US area code, plus toll-free prefixes like 800, 888, and 833.
Source-Level Attribution
One number per campaign gives you clear ROI for every marketing source you run.
Number Pools
Build a pool for busy campaigns. CallScaler hands a unique number to each visitor automatically.
Number Porting
Bring your existing numbers with you. Keep the numbers your customers already know and dial.
Instant Activation
Numbers go live in seconds. No paperwork, no approvals, no setup fees.
Per-Number Analytics
See call volume, answer rate, duration, and lead quality for every tracking number you own.
Call tracking number pricing compared
Provider
Local number
Toll-free
Recording
AI summaries
DNI included
CallScaler (Pro)
$0.50/mo
$2.00/mo
Yes
Yes
Yes
CallRail (Essentials)
$3.00/mo
$3.00/mo
Yes
No
No
WhatConverts (Pro)
$3.00/mo
$5.00/mo
Yes
No
Yes
CallTrackingMetrics (Marketing)
$3.95/mo
$3.95/mo
Yes
No
Yes
Pricing as of April 2026. Competitor prices pulled from public pricing pages.
Who uses tracking numbers?
Any business or agency that runs marketing and gets phone calls.
Marketing agencies tracking ROI across dozens of client campaigns
Multi-location businesses with one number per region
Pay-per-call networks buying numbers for publishers
Home services companies tracking calls from Google, Yelp, and direct mail