Get Started

Australia: SMS delivery facts

SMS to Australia uses calling code +61. Alphanumeric sender IDs require pre-registration under an ACMA-backed industry rollout to curb spoofing; unregistered senders face growing restrictions. Traffic uses the GSM-7 charset, with 160 characters in a single segment and 153 per segment when concatenated.

Country calling code+61 (ITU-T E.164 assigned country codes, retrieved 2026-07-27)
E.164 format+61 followed by the national subscriber number, no leading trunk zero, 15 digits maximum overall (ITU-T E.164)
Alphanumeric sender IDpre registration (per ACMA / Australian mobile carrier SMS Sender ID Registration Program, retrieved 2026-07-26)
Registration regimeAU-rollout
Dominant language(s)English
Native-text charsetGSM-7 — 160 characters per single SMS, 153 per concatenated segment (GSM 03.38 default alphabet vs script analysis, retrieved 2026-07-27)
Published smsroute rateUSD 0.045 per message, dated snapshot (source, retrieved 2026-07-27). Current rate and send path: rate card for Australia

Sender-ID rules

Australia is rolling out an industry-run SMS Sender ID Registration program (ACMA-backed) so brands register alphanumeric IDs to curb spoofing; unregistered alphanumeric senders face growing restrictions. (per ACMA / Australian mobile carrier SMS Sender ID Registration Program, verified 2026-07-26)

Australia is rolling out an industry-run SMS Sender ID Registration program (ACMA-backed) so brands register alphanumeric IDs to curb spoofing; unregistered alphanumeric senders face growing restrictions. With English as the primary language and GSM-7 as the charset class, messages fit 160 characters in a single segment or 153 per segment when concatenated.

Character set and message length

Native English text is classed as GSM-7 here: 160 characters fit a single SMS and 153 per segment once a message is concatenated.

To count segments for a concrete message, use the UDH segment surgeon; to compare all 40 countries side by side, the country requirements explorer reads the same open dataset (CC-BY 4.0).

Frequently asked

Do alphanumeric sender IDs need registration for Australia?
Yes. Alphanumeric sender IDs are under pre-registration in the AU-rollout regime of the ACMA-backed Australian mobile carrier SMS Sender ID Registration Program; unregistered alphanumeric senders face growing restrictions.
What charset and segment lengths apply to SMS in Australia?
Australia uses the GSM-7 charset class, allowing 160 characters in a single segment and 153 characters per segment when concatenated.
What is the calling code and published SMS rate for Australia?
The calling code is +61. The published rate is 0.045 USD (retrieved 2026-07-27).

Related

Facts on this page are dated snapshots with named sources; rates change — the linked rate card is authoritative. Corrections: ops@smsroute.cc. Last verified 2026-07-27.