1300 vs. Local Numbers: Which Should You Track?

The question comes up constantly in agency kickoff calls.

"We have a 1300 number. Do we use that for tracking? Or do we use local numbers? Does it matter?"

It matters more than most people realise.

The right answer depends on what kind of business you're dealing with, where their customers are, and — critically — what you're trying to measure. Get it wrong and you'll either confuse customers, inflate your costs, or undercount your best-converting traffic.

Here's the full breakdown.

What the Numbers Actually Mean to Callers

Before you decide which number type to track, understand what each communicates to the person about to dial.

1300 numbers (cost-sharing) A nationally-recognised "business" signal. Callers pay local call rates (often included in mobile plans — effectively free). Widely understood as meaning "established, national, or multi-location business."

1800 numbers (freecall) Free for the caller, paid entirely by the business. Signals: we want to hear from you and we're big enough to absorb the cost. Common in customer service, financial services, and government.

Local geographic numbers (02, 03, 07, 08) Signal: we are here, in your city, part of your community. Trades, professionals, and service businesses that operate within a specific region often perform better with local numbers — customers feel like they're calling a local expert, not a national call centre.

Mobile numbers Sometimes appropriate for very small operators ("call Mike directly"). For anything beyond sole trader size, avoid using mobile numbers in ads — they signal lack of professionalism and create tracking complications.

The Conversion Rate Difference

Here's something most agencies don't tell clients: local numbers often outperform 1300 numbers for service businesses operating in a single city.

A plumber in Brisbane advertising a 1300 number signals "national company." A plumber advertising a 07 number signals "local Brisbane tradesman." For a customer searching "emergency plumber Brisbane," the local number is more reassuring.

Industry data backs this up. For trades, health, legal, and local professional services:

Local geographic numbers can convert 10–25% better than 1300 numbers when the business is genuinely local
1300 numbers typically outperform when the business operates across multiple cities or when customers expect a national brand

The implication for agencies: don't assume 1300 is always the right choice. Ask who the customer is, where they are, and what they're looking for. Then test.

The Tracking Mechanics

Both number types can be tracked. But there are structural differences worth knowing.

Tracking 1300/1800 Numbers

1300 and 1800 numbers are virtual numbers — they sit in front of a destination number and can be configured to route anywhere.

For tracking purposes, you provision a pool of 1300 numbers, one for each traffic source you want to measure (or use DNI to dynamically assign them per session).

What to know:

1300 tracking numbers carry a per-call and per-minute cost that's typically higher than local number tracking
The caller pays local call rates regardless of where the business is located — important for multi-location clients
ACMA has specific rules around 1300/1800 number porting and use — ensure your call tracking provider handles AU compliance correctly

Tracking Local Geographic Numbers

Local numbers are provisioned per-region and work identically from a tracking perspective — they sit in front of the destination and route calls through.

What to know:

Lower cost per number than 1300
Better for single-city businesses from a conversion perspective
If you're running campaigns across multiple cities, you may want separate local numbers per city — which gives you geographic attribution at no extra tracking overhead

DNI: The Smart Way to Handle Both

Dynamic Number Insertion (DNI) means you don't have to decide upfront which number to use for each source. Instead, a pool of numbers is assigned dynamically based on the visitor's session.

A visitor from a Google Ads click sees one number. A visitor from organic sees another. Direct traffic sees a third.

For clients with both 1300 and local numbers, you can configure DNI to serve:

The 1300 number to Google Ads traffic (national-looking brand consistency)
A local number to organic traffic (local trust signal)

This level of control — deciding exactly which number each source sees — is only possible with a call tracking platform. Without it, you're stuck with one static number across all traffic and no attribution data at all.

The Right Setup for Common Business Types

Trades (Plumbing, Electrical, HVAC)

Recommendation: Local geographic numbers for tracking

Trades are inherently local. A customer searching "electrician in Melbourne" wants a Melbourne electrician. A local 03 number reinforces this.

Use a pool of local Melbourne numbers for DNI. If the client operates in multiple cities, provision separate pools per city — this gives you geographic attribution in the reporting dashboard.

Professional Services (Legal, Accounting, Financial)

Recommendation: 1300 number as the published number, local tracking numbers in ads

Professionals often benefit from the credibility signal of a 1300 number. Publish the 1300 on the website and business collateral.

For advertising, route Google Ads traffic through DNI local numbers (or a separate 1300 tracking pool) so you get session-level attribution without disrupting the brand presence of the main number.

Health (GP, Allied Health, Dental, Specialists)

Recommendation: Local geographic numbers

Healthcare is local by nature. Patients want to call their suburb's medical centre, not a national health company. Local numbers outperform 1300 consistently in this category.

Exception: multi-clinic groups that want consistent branding across all locations may prefer 1300 with per-clinic routing.

E-commerce / Retail with Physical Stores

Recommendation: Depends on footprint

Single location: local number. Multi-state retail: 1300. Track each separately if you're running geographic ad targeting.

What to Report Per Number Type

Once tracking is live, here's the breakdown you should be reporting for each number type:

For each tracking number (or DNI pool):

Total calls
Answered vs. missed
Calls by source (Google Ads, organic, direct)
Calls by campaign and keyword (for Ads traffic)
Average call duration
Calls by time of day
AI intent classification (qualified lead / price inquiry / existing customer / spam)

Cross-number:

Which number type drives higher-quality calls?
Is the 1300 number driving national callers who are out of service area?
Are local numbers producing higher conversion rates than the 1300?

These insights shape both ad strategy and — increasingly — the client's decision about which number to use as their primary.

The Most Common Mistake

Agencies set up a single tracking number and call it done.

One tracking number = no attribution.

You get call volume. You don't get source, campaign, or keyword. You can't tell whether the call came from a $50 CPC keyword or an organic blog post.

DNI is non-negotiable for proper attribution. At minimum, you need separate numbers for:

Paid (Google Ads)
Organic
Direct/Other

If you're running multiple campaigns, each campaign or ad group should ideally have its own number pool. That's where session-level attribution begins.

The Practical Answer

Use local geographic numbers for any business that's genuinely local — trades, health, professional services, single-city operations. They're cheaper, they convert better for the right audience, and they're easier to explain.

Use 1300 numbers for businesses that operate nationally, that need a single number advertised across multiple cities, or that have a brand positioning that benefits from the "established national business" signal.

Track both if you have both. Don't let the 1300 number be the only one on your website while all your ads point to a tracked local number — your attribution will be incomplete and your reporting misleading.

And whichever you choose: use DNI. Static numbers tell you calls happened. DNI tells you why.

Need to set up tracking numbers for an Australian client? See how Enfonica handles 1300, 1800, and local number tracking with full DNI and attribution built in.