Ringwood: landline numbers and carriers

Ringwood is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 96 number blocks for it with about 644,100 allocated numbers, held by 22 carriers and spread over the 0388…, 0398…, 0392… and 0399… dialling prefixes. That makes Ringwood the 7th largest of 475 numbering areas under 03 by block count, with 1.87% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Ringwood area — though the line may since have been ported, and caller ID can be spoofed.

Source: ACMA register, data as of 15/10/2026

96blocks in the register
22carriers with allocations
644,100allocated numbers
1991first allocation

Where Ringwood is

State or territory
Victoria
Council area
Maroondah
Local time
— AEST, UTC+10; AEDT, UTC+11 in summer
Number format
03 88xx xxxx; from overseas +61 3 88xx xxxx
Nearest numbering areas
Croydon (5 km), Eltham (12 km), Clayton (14 km), Dandenong (20 km), Melbourne (22 km)

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

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

How Ringwood was numbered

The oldest block in Ringwood 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 — 19 of 96 — date from 1990–1994, but allocations here span 35 years. 39 of the blocks are the standard 1,000-number size, and 42 are 10,000 numbers or larger. 22 allocated blocks have changed hands since they were first issued: the register still names AAPT LIMITED, ENGIN PTY LIMITED, GOTALK LIMITED, HUTCHISON TELECOMMUNICATIONS (AUSTRALIA) LIMITED, IPTEL PTY LIMITED, IVOX PTY LTD, POWERTEL LIMITED and RSL COM AUSTRALIA PTY LIMITED as original allocatees of blocks now held by other carriers.

PeriodBlocks allocated
1990–199419
1995–199913
2000–200415
2005–200911
2010–201411
2015–201911
2020–202411
2025–20295

The carriers in Ringwood

TELSTRA LIMITED holds the largest share here with 57.1% of allocated numbers across 35 blocks; OPTUS NETWORKS PTY LIMITED is second with 17.4%, and 20 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. OPTUS NETWORKS PTY LIMITED (5), SYMBIO NETWORKS PTY LTD (6) and SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED35368,00057.1%30/06/199102/03/2020
OPTUS NETWORKS PTY LIMITED14112,10017.4%02/07/199218/09/2015
SYMBIO NETWORKS PTY LTD1029,0004.5%24/06/200519/08/2026
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED526,0004%30/03/200017/09/2019
OPTUS MOBILE PTY LIMITED422,0003.4%30/05/200710/04/2008
TPG TELECOM LIMITED220,0003.1%24/12/199828/04/2000
PIPE NETWORKS PTY LIMITED418,0002.8%14/07/199915/08/2023
PRIMUS TELECOMMUNICATIONS PTY LIMITED413,0002%16/12/200211/02/2014
CHIME COMMUNICATIONS PTY LTD110,0001.6%14/07/200414/07/2004
PIPE INTERNATIONAL (AUSTRALIA) PTY LTD110,0001.6%23/02/200123/02/2001
NETSIP PTY LTD44,0000.6%14/02/201810/07/2026
VIRTUTEL PTY LTD22,0000.3%18/03/201520/12/2015
ADARGA PTY LTD11,0000.2%16/09/202516/09/2025
AGILE PTY LTD11,0000.2%31/05/200531/05/2005
C2A INTERNET.COM.AU PTY. LTD.11,0000.2%13/07/202313/07/2023
CHECK TECHNOLOGY GROUP PTY LTD11,0000.2%31/01/202231/01/2022
GENNEXT ENTERPRISES PTY LTD11,0000.2%03/10/201903/10/2019
LMGPS LTD11,0000.2%23/11/202323/11/2023
NETERA PTY LTD11,0000.2%24/10/202524/10/2025
PIVOTEL SATELLITE PTY LIMITED11,0000.2%16/04/202516/04/2025
THE TRUSTEE FOR READING FAMILY TRUST11,0000.2%21/10/201921/10/2019
WHY PAY MORE 4 LESS PTY LTD11,0000.2%10/05/201810/05/2018

Number blocks registered for Ringwood

Every registered block for this area is allocated to a carrier. All 96 blocks, ascending:

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0388010000…10,000HUTCHISON TELECOMMUNICATIONS (AUSTRALIA) LIMITEDTPG TELECOM LIMITED24/12/199828/04/2017
0388050000…10,000=TELSTRA LIMITED17/02/2000—
0388060000…10,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0388110000…10,000HUTCHISON TELECOMMUNICATIONS (AUSTRALIA) LIMITEDTPG TELECOM LIMITED28/04/200028/04/2017
0388120000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED14/02/200110/02/2003
0388130000…10,000POWERTEL LIMITEDPIPE INTERNATIONAL (AUSTRALIA) PTY LTD23/02/200124/03/2026
0388140000…10,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED14/07/199924/03/2026
0388180000…10,000=OPTUS NETWORKS PTY LIMITED14/08/2002—
0388190000…10,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0388200000…1,000GOTALK LIMITEDSYMBIO NETWORKS PTY LTD24/06/200526/07/2013
0388201000…1,000TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202015/10/2020
0388202000…1,000OPTUS NETWORKS PTY LIMITEDOPTUS MOBILE PTY LIMITED30/05/2007—
0388203000…1,000GOTALK LIMITEDSYMBIO NETWORKS PTY LTD24/08/201026/07/2013
0388204000…1,000VOXBONESYMBIO NETWORKS PTY LTD10/09/201021/02/2011
0388206000…1,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED03/02/2012—
0388208000…1,000IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201206/06/2014
0388209000…1,000=SYMBIO NETWORKS PTY LTD24/04/2014—
0388210000…10,000=OPTUS MOBILE PTY LIMITED10/04/2008—
0388220000…1,000ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED24/12/200411/08/2015
0388221000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED27/01/202124/03/2026
0388222000…1,000=AGILE PTY LTD31/05/200508/02/2011
0388223000…1,000=OPTUS NETWORKS PTY LIMITED20/06/2005—
0388224000…1,000=OPTUS MOBILE PTY LIMITED05/09/2007—
0388225000…1,000VOCUS PTY LTDPRIMUS TELECOMMUNICATIONS PTY LIMITED11/02/201408/07/2016
0388226000…1,000=VIRTUTEL PTY LTD18/03/2015—
0388227000…1,000=VIRTUTEL PTY LTD20/12/2015—
0388228000…1,000=TELSTRA LIMITED13/01/2011—
0388229000…1,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0388240000…10,000RSL COM AUSTRALIA PTY LIMITEDSYMBIO NETWORKS PTY LTD22/02/200608/10/2009
0388260000…10,000=OPTUS MOBILE PTY LIMITED11/01/2008—
0388270000…1,000=NETSIP PTY LTD14/02/2018—
0388271000…1,000=ADARGA PTY LTD16/09/2025—
0388272000…1,000=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0388273000…1,000=NETSIP PTY LTD26/10/2021—
0388274000…1,000=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0388275000…1,000=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0388276000…7,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED17/09/2019—
0388283000…1,000=GENNEXT ENTERPRISES PTY LTD03/10/2019—
0388284000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED02/02/202224/03/2026
0388285000…1,000=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0388286000…1,000=LMGPS LTD23/11/2023—
0388287000…2,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0388289000…1,000=NETSIP PTY LTD16/02/2024—
0388290000…10,000=SYMBIO NETWORKS PTY LTD14/11/2019—
0388300000…6,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED15/08/202324/03/2026
0388306000…1,000=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0388307000…1,000=NETERA PTY LTD24/10/2025—
0388308000…1,000=NETSIP PTY LTD10/07/2026—
0388309000…1,000=SYMBIO NETWORKS PTY LTD19/08/2026—
0388330000…10,000=OPTUS NETWORKS PTY LIMITED28/04/2006—
0388380000…10,000=OPTUS NETWORKS PTY LIMITED24/08/2006—
0388390000…5,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED20/11/2012—
0388395000…3,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED07/08/2014—
0388398000…2,000=TELSTRA LIMITED02/03/2020—
0388410000…10,000=TELSTRA LIMITED17/02/2000—
0388450000…10,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED16/12/2002—
0388460000…10,000=TELSTRA LIMITED17/02/2000—
0388470000…10,000=TELSTRA LIMITED17/08/2000—
0388630000…10,000=OPTUS NETWORKS PTY LIMITED12/01/2015—
0388640000…10,000=OPTUS NETWORKS PTY LIMITED18/09/2015—
0388700000…10,000=TELSTRA LIMITED17/02/2000—
0388710000…10,000=OPTUS NETWORKS PTY LIMITED16/10/2014—
0388720000…10,000=TELSTRA LIMITED15/09/2000—
0388730000…10,000=TELSTRA LIMITED17/02/2000—
0388744000…1,000=OPTUS NETWORKS PTY LIMITED12/05/2014—
0388770000…10,000=TELSTRA LIMITED22/10/1997—
0388780000…10,000=TELSTRA LIMITED24/12/1999—
0392100000…2,000=TELSTRA LIMITED30/06/1991—
0392103000…7,000=TELSTRA LIMITED30/06/1991—
0392590000…10,000=TELSTRA LIMITED26/07/1996—
0392620000…1,000=TELSTRA LIMITED30/06/1991—
0392626000…3,000=TELSTRA LIMITED30/06/1991—
0392646000…3,000=TELSTRA LIMITED30/06/1991—
0392980000…10,000=TELSTRA LIMITED30/05/1995—
0398000000…40,000=TELSTRA LIMITED30/06/1991—
0398120000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED02/07/199210/02/2003
0398140000…10,000=TELSTRA LIMITED12/06/1996—
0398370000…10,000=TELSTRA LIMITED02/10/1997—
0398410000…1,000=TELSTRA LIMITED30/06/1991—
0398412000…18,000=TELSTRA LIMITED30/06/1991—
0398440000…10,000=TELSTRA LIMITED30/06/1991—
0398450000…10,000=TELSTRA LIMITED12/06/1996—
0398461000…9,000=TELSTRA LIMITED30/06/1991—
0398470000…10,000=TELSTRA LIMITED25/08/1995—
0398700000…50,000=TELSTRA LIMITED30/06/1991—
0398760000…40,000=TELSTRA LIMITED30/06/1991—
0398810000…1,000=TELSTRA LIMITED30/06/1991—
0398817000…1,000=TELSTRA LIMITED30/06/1991—
0398819000…1,000=TELSTRA LIMITED30/06/1991—
0398840000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED22/05/199510/02/2003
0398861000…8,000=TELSTRA LIMITED30/06/1991—
0398870000…10,000=TELSTRA LIMITED30/06/1991—
0398930000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED22/05/199510/02/2003
0398940000…10,000=TELSTRA LIMITED30/06/1991—
0399156700…100SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED16/09/199913/01/2016
0399550000…10,000=OPTUS NETWORKS PTY LIMITED16/10/2006—

Numbering areas next to Ringwood in the register

Immediately below and above Ringwood's blocks in the 0388…, 0398…, 0392… and 0399… prefixes sit Melbourne, Croydon, Werribee, Clayton, Dandenong, Whittlesea and Kalkallo.

Numbering areaFirst blockBlocksCarriers
Melbourne0388000000…20112
Croydon0388035700…102
Werribee0392020000…61
Clayton0392117000…162
Dandenong0392121000…61
Whittlesea0392161000…21
Kalkallo0392163000…21

Had a call from a Ringwood 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 Victoria Police. 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.

Ringwood numbers: questions and answers

Where is the Ringwood numbering area?

Ringwood is in Victoria, in the Maroondah council area. The nearest other numbering areas are Croydon (5 km), Eltham (12 km) and Clayton (14 km).

What area code does Ringwood use?

Ringwood numbers use area code 03. Its register blocks start with 03 88, 03 98, 03 92 and 03 99. From overseas, drop the 0 and dial +61 3 followed by the eight-digit local number.

What time zone is Ringwood in?

Ringwood is on Australian Eastern Time (AEST, UTC+10), with daylight saving (AEDT, UTC+11) from the first Sunday in October to the first Sunday in April.

Which carriers hold Ringwood phone numbers?

The ACMA register lists 22 carriers with allocated blocks in Ringwood. By allocated numbers the largest are Telstra (57.1%), Optus Networks (17.4%) and Symbio Networks (4.5%). A number can since have been ported to another provider.

When were Ringwood numbers first allocated?

The oldest block on record for Ringwood 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 Ringwood number?

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

Check a number from Ringwood

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