Who owns your call tracking numbers when you leave your agency?
In a 2026 Adimize study of 321 recorded junk removal sales calls, on 16 calls, callers were moved from the tracking number to a personal phone, cutting those jobs off from the ad that produced them. And every tracking number, including the ones printed on the truck, sat in the agency's account, not the owner's. Both problems apply to any trade that runs ads and answers the phone.
What we found
There were two separate problems. One is a habit. The other is paperwork.
The "spam number" habit. On 16 calls, the person answering told the caller the number they'd dialed was a Google spam number, then asked them to text a personal cell instead. On one call the reason was given plainly: every call to that number cost money.
Every job booked that way lost its link to the ad that paid for it. The call tracker saw a short call. Google saw a call. Nobody saw the job. When the owner later looked at what the ads produced, those jobs weren't in the count.
Agency-owned numbers. The previous agency's call tracking account held every tracking number. That included the numbers printed on the truck wrap and on door hangers. The owner handed those numbers out every day. He didn't own them.
When an agency relationship ends, numbers in the agency's account can stop ringing unless they're moved first. A number on a website is easy to change. A number on a truck wrap and a stack of door hangers in the field isn't.
The full findings are in the study, and the headline figures are on the statistics page.
Why it happens
I get the spam number habit. Tracking numbers look unfamiliar. The bill comes per minute. Texting from your own phone is easier, especially when you're on a job or in the truck. If you don't know what the tracking number is doing for you, it looks like a cost with no upside.
What it's doing is keeping score. A tracking number is how a call gets tied back to the ad, the keyword and the campaign that produced it. Move the conversation to a personal phone and the score stops. The ads look worse than they are, and the budget gets cut on a campaign that was working.
The ownership problem happens because it's convenient at the start. The agency sets up the tracking account, buys the numbers and connects them to the ads. It's faster that way, and nobody thinks about leaving on day one. Then the numbers end up on trucks, signs and flyers. Now they're part of the business, and they're in somebody else's name.
Nobody here did anything shady. It's just how these setups usually go unless someone asks the question early.
What to do about it
- Text and call back from the tracking number. Most call tracking tools have a texting inbox for exactly this. Use it, so the job stays tied to the ad.
- Stop calling it spam. Tell whoever answers the phone what the tracking number is for. One sentence to your team fixes most of this.
- Ask your agency who owns the tracking account. Get a straight answer in writing: whose name it's in, and who pays for it.
- Get the numbers in your name, or porting rights in your agreement. Either your business owns the tracking account, or your agency agreement says you can take the numbers with you when you leave.
- List every number in print. Trucks, signs, yard signs, door hangers, flyers, business cards, directory listings. Those are the ones that matter most, because they're the hardest to replace.
- Move printed numbers before closing an old account. If you're switching agencies, move these first, before anything gets cancelled.
If you're already in your account, two related checks are worth the time: whether Google counts more conversions than you have leads, and how many of your calls go unanswered.
How we measured this
We studied six months of Google Ads calls and forms for an owner-operated junk removal company in Southern California, late March to the end of September 2026: about $42,000 in search ad spend, 327 calls, 52 forms and 321 call recordings. Each transcript was read and coded with AI assistance for job type, price quoted and how the call ended, and every call coded as booked was checked a second time. One company, one market, six months: treat it as one detailed example, not an industry average. Read the full study.
Frequently Asked Questions
Who owns call tracking numbers, the business or the agency?
Whoever holds the call tracking account. If your agency set it up in its own account, the numbers are in its name unless your agreement says otherwise.
What happens to my tracking numbers if I leave my agency?
Numbers in the agency's account can stop ringing when the relationship ends unless they're moved first. Move any number printed on trucks, signs or flyers before closing an old account.
Is it bad to text customers from my personal phone?
It breaks the link between the job and the ad that produced it. In this study, 16 callers were moved to a personal phone, and those jobs didn't show up as coming from the ads.
What should I ask my agency about call tracking?
Ask whose name the tracking account is in, and whether your agreement lets you take the numbers with you. Start with any number printed on a truck or a sign.
Want us to read your calls? We'll go through your last 90 days of sales calls and show you where the money leaks. Request a call audit → · Read the full study →