The Australia Phone Number Format Card

Everything published about Australian inbound number formats fits on one card, and this page is that card. Prefixes, digit counts, word forms, search rules — all stated once, all sourced from the published pages, so any format question has a one-glance answer.

The format card

Format	Shape	Word capacity	Caller arrangement
1300	1300 + six-digit tail	Up to 6 letters	Shared cost — caller pays a local call cost, business the remainder
1800	1800 + six-digit tail	Up to 6 letters	Caller-free in the stated Australian 1800-number context
13	Six digits total	Up to 4 letters	Typically used by larger national companies (published FAQ)

The keypad mapping behind every word form: 2 ABC, 3 DEF, 4 GHI, 5 JKL, 6 MNO, 7 PQRS, 8 TUV, 9 WXYZ — digits 0 and 1 carry no letters. The published worked example: 1300 327 934 spells 1300 EASY DIAL.

How to use the card

The card is a lookup, in the order most buyers need it. Choose the caller arrangement first — the format column decides it. Check the word capacity if a word is the goal — six letters or four. Then take the format to the search: Find a Number runs by word or tail on 1300 and 1800, and the listing answers what exists. The card answers format questions in seconds; only availability needs a live tool.

Three rules the card implies

The search runs on the tail: Find a Number accepts the last six digits of a 1300 or 1800 number, or a word — the prefix is never needed.
The prefix is the caller promise: shared cost or caller-free is decided by the format you choose, published on the pricing page from $10 per month.
Availability is the market: the card shows formats, not stock — the listing decides what exists, and a specific number is not guaranteed until sign-up confirms it.

What the card does not carry

Geography — the inbound prefixes have no area-code meaning and no coverage claims are published. International dialling formats — the published material covers the Australian context only. And word availability — that lives in the listing, which changes.

Related reading: what Australian numbers start with, worked format examples, or the 1300 numbers overview.

Format card questions

Which format should I choose first?

The caller arrangement decides it: shared cost on 1300, caller-free in the Australian context on 1800. The 13 format is the short variant the published FAQ associates with larger national companies.

Does the tail length vary?

No — six digits on every 1300 and 1800 tail, which is why the search works on exactly the last six. The 13 format is the short six-digit-total variant.

Can a word span the prefix and tail?

No — the word rides the tail only, up to six letters (four on a 13 base). The prefix is fixed by the format.

Where are the prices for each format?

1300 and 1800 plans are published on the pricing page from $10 per month; no 13 plans appear there, so 13 pricing is a question for the team.