Where a Phone Number Actually Lives

People say a number is "in their phone", but a published business number never actually lives there. It lives in the service — an inbound 1300, 1800 or Phoneword number held on a plan and pointed at the answering point you name. The distinction is not pedantry; it explains why the number survives handset upgrades, lost phones and staff changes when a SIM-based number cannot.

Three places a number can live

On a SIM: the number a carrier issued for a handset. It lives with the physical card — lose the card or change plans, and the number's future is someone else's decision.
On a line: a fixed number bound to a physical connection at a place. It lives with the premises.
In a service: an inbound number held on a plan, answering at whatever line you connect. It lives with the subscription — which is what you control.

The third is the published model here: signup asks for the number the service will connect to, and the answering point can change while the published number stays.

What "in my phone" really means for a business number

When a business number rings on your handset, the phone is the destination, not the home. Nothing about the number is stored in the device — no second SIM, no app, no setting. That is why the same number can ring an office landline tomorrow and a founder's mobile next week: the service holds the number; the phones merely answer it. Calls arrive as ordinary calls on the answering line, which is also why no special hardware appears anywhere in the published flow.

Why the home of the number matters

The practical consequence is continuity of identity. A number that lives in a service keeps working as the published contact point — the one on the van, the quotes, the ad — regardless of what changes behind it. A number that lives on a SIM or a line inherits the fate of that SIM or line. For a business choosing where its public identity should reside, that is the whole argument, and it is why the published plans (from $10 per month, tables on the pricing page) buy a home for the number rather than just digits.

Related reading: a business number on your existing phone, what a virtual phone number is, or the 1300 numbers overview.

The same idea, run in reverse

Knowing where a number lives also tells you what a business number is not. It is not the number printed on a letterhead — that is a use of the number, and it updates the day the number does. It is not the caller identity a customer sees on their screen; how a caller's device displays an inbound number is outside what this site establishes. And it is not the answering handset, which is merely where calls land. Holding those apart keeps the decisions straight: the service holds the number, the business publishes it, the answering point takes the calls, and each can change independently.

Where numbers live: questions

Is my business number stored on my handset?

No. The inbound number lives in the service and connects to your answering point. The handset is where calls arrive, not where the number is held.

What happens to the number if my phone is lost?

The published number is unaffected — it was never on the device. Repoint the answering connection to a replacement line; how to do that is not published on this page, so ask the team.

Can the same number answer on different phones on different days?

The answering point is whatever the business connects, and changing it is an update to the connection rather than the number. The published flow names one answering point at signup.

Does holding the number in a service cost more?

Published plans start at $10 per month for 1300 and 1800 numbers, with a word premium from $40 per month where one applies — tables on the pricing page.