Middlemount: landline numbers and carriers

Middlemount is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 33 number blocks for it with about 17,200 allocated numbers, held by 19 carriers and spread over the 0748…, 0749… and 0779… dialling prefixes. That makes Middlemount the 91st largest of 409 numbering areas under 07 by block count, with 0.08% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Middlemount area — though the line may since have been ported, and caller ID can be spoofed.

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

33blocks in the register
19carriers with allocations
17,200allocated numbers
1991first allocation

Where Middlemount is

State or territory
Queensland
Council area
Isaac
Local time
— AEST, UTC+10, no daylight saving
Number format
07 48xx xxxx; from overseas +61 7 48xx xxxx
Nearest numbering areas
Tieri (32 km), Dysart (47 km), Capella (64 km), Bingegang (Ext) (68 km), Blackwater (71 km)

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

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

How Middlemount was numbered

The oldest block in Middlemount 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 — 7 of 33 — date from 2005–2009, but allocations here span 35 years. 8 of the blocks are the standard 1,000-number size, 22 are 100-number blocks of the kind the ACMA has issued to VoIP and wholesale carriers since the mid-2000s. 7 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
2000–20042
2005–20097
2010–20145
2015–20197
2020–20245
2025–20294

The carriers in Middlemount

TELSTRA LIMITED holds the largest share here with 46.5% of allocated numbers across 5 blocks; OPTUS MOBILE PTY LIMITED is second with 11.6%, and 17 other carriers hold the rest. 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), PIPE NETWORKS PTY LIMITED (2) and SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED58,00046.5%30/06/199118/09/2012
OPTUS MOBILE PTY LIMITED12,00011.6%16/10/200716/10/2007
SYMBIO NETWORKS PTY LTD61,5008.7%23/06/200519/08/2026
PIPE NETWORKS PTY LIMITED21,1006.4%03/09/201205/07/2019
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED21,1006.4%30/03/200014/07/2016
CHIME COMMUNICATIONS PTY LTD11,0005.8%14/07/200414/07/2004
OPTUS NETWORKS PTY LIMITED11,0005.8%10/06/200510/06/2005
PRIMUS TELECOMMUNICATIONS PTY LIMITED33001.7%20/07/200503/02/2012
NETSIP PTY LTD22001.2%14/02/201826/10/2021
ADARGA PTY LTD11000.6%16/09/202516/09/2025
AGILE PTY LTD11000.6%30/03/200730/03/2007
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
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 Middlemount

Every registered block for this area is allocated to a carrier. All 33 blocks, ascending:

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0748023300…100TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202024/02/2021
0748027100…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED26/05/2006—
0748027200…100GOTALK LIMITEDSYMBIO NETWORKS PTY LTD23/06/200523/08/2013
0748027400…100=AGILE PTY LTD30/03/200703/09/2012
0748027500…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED03/02/2012—
0748027600…100IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201212/06/2014
0748027700…100AAPT LIMITEDPIPE NETWORKS PTY LIMITED03/09/201224/03/2026
0748027800…100ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED20/07/200511/08/2015
0748027900…100=SYMBIO NETWORKS PTY LTD24/04/2014—
0748051900…100=VIRTUTEL PTY LTD20/12/2015—
0748065000…100=NETSIP PTY LTD26/10/2021—
0748109000…1,000=OPTUS NETWORKS PTY LIMITED10/06/2005—
0748268000…2,000=OPTUS MOBILE PTY LIMITED16/10/2007—
0748474000…1,000=TELSTRA LIMITED18/09/2012—
0748551000…1,000=SYMBIO NETWORKS PTY LTD30/05/2016—
0748587600…100=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0748655200…100=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0748670000…100=NETSIP PTY LTD14/02/2018—
0748684300…100=ADARGA PTY LTD16/09/2025—
0748703600…100=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0748713700…100=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0748751000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED05/07/201924/03/2026
0748818000…100=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0748848000…1,000=TELSTRA LIMITED14/11/2008—
0748921300…100=LMGPS LTD23/11/2023—
0748944600…100=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0748962000…100=NETERA PTY LTD24/10/2025—
0749072000…1,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0749171000…1,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0749812000…2,000=TELSTRA LIMITED24/12/1998—
0749850000…1,000=TELSTRA LIMITED30/06/1991—
0749857000…3,000=TELSTRA LIMITED30/06/1991—
0779003500…100=SYMBIO NETWORKS PTY LTD19/08/2026—

Numbering areas next to Middlemount in the register

Immediately below and above Middlemount's blocks in the 0748…, 0749… and 0779… prefixes sit Hodgson Range, Isaac River, Koumala, Lethebrook, Marlborough, Miclere (Ext), Miriam Vale, Moranbah, Mount Coolon, Mount Gardiner, Mount Larcom and Mount Morgan.

Numbering areaFirst blockBlocksCarriers
Hodgson Range0748019300…2918
Isaac River0748020000…2918
Koumala0748020300…3118
Lethebrook0748021000…2918
Marlborough0748022300…3218
Miclere (Ext)0748023000…3018
Miriam Vale0748024000…3219
Moranbah0748024300…4819
Mount Coolon0748025000…2618
Mount Gardiner0748025300…2718
Mount Larcom0748026000…3018
Mount Morgan0748026300…3218

Had a call from a Middlemount 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.

Middlemount numbers: questions and answers

Where is the Middlemount numbering area?

Middlemount is in Queensland, in the Isaac council area. The nearest other numbering areas are Tieri (32 km), Dysart (47 km) and Capella (64 km).

What area code does Middlemount use?

Middlemount numbers use area code 07. Its register blocks start with 07 48, 07 49 and 07 79. From overseas, drop the 0 and dial +61 7 followed by the eight-digit local number.

What time zone is Middlemount in?

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

Which carriers hold Middlemount phone numbers?

The ACMA register lists 19 carriers with allocated blocks in Middlemount. By allocated numbers the largest are Telstra (46.5%), Optus Mobile (11.6%) and Symbio Networks (8.7%). A number can since have been ported to another provider.

When were Middlemount numbers first allocated?

The oldest block on record for Middlemount 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 Middlemount 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 Middlemount

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