Helidon: landline numbers and carriers

Helidon is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 32 number blocks for it with about 16,100 allocated numbers, held by 19 carriers and spread over the 0745…, 0775… and 0746… dialling prefixes. That makes Helidon the 110th largest of 409 numbering areas under 07 by block count, with 0.07% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Helidon area — though the line may since have been ported, and caller ID can be spoofed.

Source: ACMA register, data as of 16/10/2026

32blocks in the register
19carriers with allocations
16,100allocated numbers
1991first allocation

Where Helidon is

State or territory
Queensland
Council area
Lockyer Valley
Local time
— AEST, UTC+10, no daylight saving
Number format
07 45xx xxxx; from overseas +61 7 45xx xxxx
Nearest numbering areas
Gatton (16 km), Toowoomba (18 km), Ravensbourne (22 km), Woodbine (29 km), Crows Nest (30 km)

Locality, council and state: ABS ASGS Edition 3 (CC BY 4.0). Distances are straight-line between localities.

Map of the Helidon numbering area in Queensland and the nearest other numbering areas
Shaded: Lockyer Valley council area. The ACMA doesn't publish numbering-area boundaries, so the dot marks the Helidon locality rather than an exact outline; the inset shows where the map sits in Australia. Boundaries: ABS (CC BY 4.0).

How Helidon was numbered

The oldest block in Helidon was allocated on 30 June 1991 and is held today by TELSTRA LIMITED; the newest on 19 August 2026 to SYMBIO NETWORKS PTY LTD. Most of the area's blocks — 6 of 32 — date from 2015–2019, but allocations here span 35 years. 9 of the blocks are the standard 1,000-number size, 21 are 100-number blocks of the kind the ACMA has issued to VoIP and wholesale carriers since the mid-2000s. 6 allocated blocks have changed hands since they were first issued: the register still names AAPT LIMITED, ENGIN PTY LIMITED, GOTALK LIMITED, IPTEL PTY LIMITED, IVOX PTY LTD and TWILIO AUSTRALIA PTY LTD as original allocatees of blocks now held by other carriers.

PeriodBlocks allocated
1990–19942
1995–19991
2000–20043
2005–20095
2010–20145
2015–20196
2020–20246
2025–20294

The carriers in Helidon

Helidon is spread across carriers: TELSTRA LIMITED leads with 37.3% of allocated numbers ahead of SYMBIO NETWORKS PTY LTD on 15.5%, and 19 carriers hold blocks in total. TELSTRA LIMITED has the longest tenure, with a block dated 30/06/1991; SYMBIO NETWORKS PTY LTD received the newest, on 19/08/2026. SYMBIO NETWORKS PTY LTD (3), PRIMUS TELECOMMUNICATIONS PTY LIMITED (1) and SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED46,00037.3%30/06/199124/09/2013
SYMBIO NETWORKS PTY LTD72,50015.5%22/06/200519/08/2026
OPTUS MOBILE PTY LIMITED12,00012.4%04/10/200704/10/2007
PRIMUS TELECOMMUNICATIONS PTY LIMITED31,2007.5%24/12/200403/02/2012
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED21,1006.8%30/03/200014/07/2016
CHIME COMMUNICATIONS PTY LTD11,0006.2%14/07/200414/07/2004
OPTUS NETWORKS PTY LIMITED11,0006.2%10/06/200510/06/2005
NETSIP PTY LTD22001.2%14/02/201826/10/2021
ADARGA PTY LTD11000.6%16/09/202516/09/2025
AGILE PTY LTD11000.6%03/04/200703/04/2007
C2A INTERNET.COM.AU PTY. LTD.11000.6%13/07/202313/07/2023
CHECK TECHNOLOGY GROUP PTY LTD11000.6%31/01/202231/01/2022
LMGPS LTD11000.6%23/11/202323/11/2023
NETERA PTY LTD11000.6%24/10/202524/10/2025
PIPE NETWORKS PTY LIMITED11000.6%31/08/201231/08/2012
PIVOTEL SATELLITE PTY LIMITED11000.6%16/04/202516/04/2025
THE TRUSTEE FOR READING FAMILY TRUST11000.6%21/10/201921/10/2019
VIRTUTEL PTY LTD11000.6%20/12/201520/12/2015
WHY PAY MORE 4 LESS PTY LTD11000.6%10/05/201810/05/2018

Number blocks registered for Helidon

Every registered block for this area is allocated to a carrier. All 32 blocks, ascending:

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0745135000…1,000ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED24/12/200411/08/2015
0745175300…100TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202024/02/2021
0745205900…100=VIRTUTEL PTY LTD20/12/2015—
0745239300…100=NETSIP PTY LTD26/10/2021—
0745258100…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED23/05/2005—
0745258200…100GOTALK LIMITEDSYMBIO NETWORKS PTY LTD22/06/200519/08/2013
0745258400…100=AGILE PTY LTD03/04/200722/11/2011
0745258500…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED03/02/2012—
0745258600…100IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201213/06/2014
0745258700…100=SYMBIO NETWORKS PTY LTD24/04/2014—
0745258800…100AAPT LIMITEDPIPE NETWORKS PTY LIMITED31/08/201224/03/2026
0745411000…1,000=OPTUS NETWORKS PTY LIMITED10/06/2005—
0745715000…1,000=TELSTRA LIMITED24/09/2013—
0745806000…1,000=SYMBIO NETWORKS PTY LTD30/05/2016—
0745863100…100=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0745880900…100=NETSIP PTY LTD14/02/2018—
0745901500…100=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0745985500…100=ADARGA PTY LTD16/09/2025—
0746077000…1,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0746129000…1,000=TELSTRA LIMITED16/02/1999—
0746441000…1,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0746703000…2,000=OPTUS MOBILE PTY LIMITED04/10/2007—
0746908000…1,000=TELSTRA LIMITED30/06/1991—
0746975000…3,000=TELSTRA LIMITED30/06/1991—
0775015300…100=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0775179300…100=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0775246400…100=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0775290200…100=LMGPS LTD23/11/2023—
0775297000…1,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0775326000…100=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0775358800…100=NETERA PTY LTD24/10/2025—
0775388600…100=SYMBIO NETWORKS PTY LTD19/08/2026—

Numbering areas next to Helidon in the register

Immediately below and above Helidon's blocks in the 0745…, 0775… and 0746… prefixes sit Clifton, Cooyar, Crows Nest, Goombungee, Greenmount, Haden, Bringalily, Brookstead, Brymaroo, Cambooya, Allora and Cunningham.

Numbering areaFirst blockBlocksCarriers
Clifton0745129000…3219
Cooyar0745130000…3019
Crows Nest0745131000…3319
Goombungee0745132000…4019
Greenmount0745133000…3019
Haden0745134000…3120
Bringalily0745136000…3019
Brookstead0745137000…3219
Brymaroo0745138000…3119
Cambooya0745139000…3319
Allora0745140000…3119
Cunningham0745141000…3119

Had a call from a Helidon number?

No clear pattern in reports on these numbers yet. If a call worried you:

  1. Call back on a number you trust

    If a caller says they're your bank, the ATO, Services Australia, a courier or your telco, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.

  2. Report the call to Scamwatch

    The National Anti-Scam Centre uses Scamwatch reports to warn others and to get scam numbers blocked. Note the number, the time and what the caller claimed to be. If anyone is in danger, call 000.

    Report to Scamwatch ↗

  3. Register on the Do Not Call Register

    Registering landlines and mobiles is free and stops most telemarketing calls within 30 days. Charities, political parties, surveys and scammers aren't covered.

    Do Not Call Register ↗

  4. If you lost money or shared details

    Call your bank straight away on the number on your card and ask it to stop the payment. Then report it through ReportCyber, which passes cybercrime reports to the Queensland Police Service. If your identity documents or passwords were shared, IDCARE's free support service can help you lock things down.

    ReportCyber ↗IDCARE ↗

Nationally, Scamwatch recorded $72.5 million lost to scams that started with a phone call in 2025 (down from $107.2 million), with a median loss of $3,800 per report that lost money, and phone-call scam reports are 73.7% below their 2021 level. Telcos blocked 109.3 million scam calls and 45.2 million scam texts in January to March 2026. Sources: Targeting scams 2025 (National Anti-Scam Centre); ACMA quarterly report, Jan–Mar 2026.

Helidon numbers: questions and answers

Where is the Helidon numbering area?

Helidon is in Queensland, in the Lockyer Valley council area. The nearest other numbering areas are Gatton (16 km), Toowoomba (18 km) and Ravensbourne (22 km).

What area code does Helidon use?

Helidon numbers use area code 07. Its register blocks start with 07 45, 07 75 and 07 46. From overseas, drop the 0 and dial +61 7 followed by the eight-digit local number.

What time zone is Helidon in?

Helidon is on Australian Eastern Time (AEST, UTC+10), with no daylight saving.

Which carriers hold Helidon phone numbers?

The ACMA register lists 19 carriers with allocated blocks in Helidon. By allocated numbers the largest are Telstra (37.3%), Symbio Networks (15.5%) and Optus Mobile (12.4%). A number can since have been ported to another provider.

When were Helidon numbers first allocated?

The oldest block on record for Helidon was allocated on 30 June 1991 and is held by Telstra; the newest on 19 August 2026, to Symbio Networks.

How do I report a scam call from a Helidon number?

Report it to Scamwatch. If you lost money, call your bank first, then report it through ReportCyber, which passes it to the Queensland Police Service. Unwanted sales calls go to the Do Not Call Register's complaint form (1300 792 958).

Check a number from Helidon

Scammers spoof local landline numbers to look nearby. Guides: Australian area codes, how caller ID spoofing works.