Eltham: landline numbers and carriers

Eltham is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 69 number blocks for it with about 391,000 allocated numbers, held by 22 carriers and spread over the 0384…, 0394…, 0392… and 0390… dialling prefixes. That makes Eltham the 11th largest of 475 numbering areas under 03 by block count, with 1.14% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Eltham area — though the line may since have been ported, and caller ID can be spoofed.

Source: ACMA register, data as of 14/10/2026

69blocks in the register
22carriers with allocations
391,000allocated numbers
1991first allocation

Where Eltham is

State or territory
Victoria
Council area
Nillumbik
Local time
— AEST, UTC+10; AEDT, UTC+11 in summer
Number format
03 84xx xxxx; from overseas +61 3 84xx xxxx
Nearest numbering areas
Ringwood (12 km), Croydon (14 km), Melbourne (20 km), Clayton (22 km), Craigieburn (25 km)

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

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

How Eltham was numbered

The oldest block in Eltham was allocated on 30 June 1991 and is held today by TELSTRA LIMITED; the newest on 1 October 2026 to TWILIO AUSTRALIA PTY LTD. Most of the area's blocks — 11 of 69 — date from 1990–1994, but allocations here span 35 years. 34 of the blocks are the standard 1,000-number size, and 21 are 10,000 numbers or larger. 17 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
1990–199411
1995–19996
2000–200410
2005–20099
2010–20146
2015–201911
2020–202410
2025–20296

The carriers in Eltham

TELSTRA LIMITED holds the largest share here with 49.4% of allocated numbers across 15 blocks; OPTUS NETWORKS PTY LIMITED is second with 18.7%, and 20 other carriers hold the rest. TELSTRA LIMITED has the longest tenure, with a block dated 30/06/1991; TWILIO AUSTRALIA PTY LTD received the newest, on 01/10/2026. OPTUS NETWORKS PTY LIMITED (5), OPTUS MOBILE PTY LIMITED (1) and SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED15193,00049.4%30/06/199105/06/2000
OPTUS NETWORKS PTY LIMITED1273,00018.7%02/07/199230/07/2024
OPTUS MOBILE PTY LIMITED422,0005.6%01/06/200710/04/2008
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED520,0005.1%30/03/200017/06/2021
PRIMUS TELECOMMUNICATIONS PTY LIMITED516,0004.1%16/12/200215/03/2017
CHIME COMMUNICATIONS PTY LTD110,0002.6%14/07/200414/07/2004
PIPE INTERNATIONAL (AUSTRALIA) PTY LTD110,0002.6%23/02/200123/02/2001
PIPE NETWORKS PTY LIMITED110,0002.6%14/07/199914/07/1999
TPG TELECOM LIMITED110,0002.6%24/12/199824/12/1998
SYMBIO NETWORKS PTY LTD99,0002.3%24/06/200519/08/2026
TWILIO AUSTRALIA PTY LTD14,0001%01/10/202601/10/2026
NETSIP PTY LTD33,0000.8%14/02/201812/05/2025
VIRTUTEL PTY LTD22,0000.5%18/03/201520/12/2015
ADARGA PTY LTD11,0000.3%16/09/202516/09/2025
AGILE PTY LTD11,0000.3%31/05/200531/05/2005
C2A INTERNET.COM.AU PTY. LTD.11,0000.3%13/07/202313/07/2023
CHECK TECHNOLOGY GROUP PTY LTD11,0000.3%31/01/202231/01/2022
LMGPS LTD11,0000.3%23/11/202323/11/2023
NETERA PTY LTD11,0000.3%24/10/202524/10/2025
PIVOTEL SATELLITE PTY LIMITED11,0000.3%16/04/202516/04/2025
THE TRUSTEE FOR READING FAMILY TRUST11,0000.3%21/10/201921/10/2019
WHY PAY MORE 4 LESS PTY LTD11,0000.3%10/05/201810/05/2018

Number blocks registered for Eltham

Every registered block for this area is allocated to a carrier. All 69 blocks, ascending:

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0384000000…1,000TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202015/10/2020
0384001000…1,000OPTUS NETWORKS PTY LIMITEDOPTUS MOBILE PTY LIMITED01/06/2007—
0384002000…1,000=OPTUS MOBILE PTY LIMITED06/09/2007—
0384003000…1,000VOXBONESYMBIO NETWORKS PTY LTD09/09/201021/02/2011
0384005000…1,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED03/02/2012—
0384006000…1,000IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201216/06/2014
0384008000…1,000VOCUS PTY LTDPRIMUS TELECOMMUNICATIONS PTY LIMITED11/02/201408/07/2016
0384009000…1,000=SYMBIO NETWORKS PTY LTD24/04/2014—
0384010000…10,000=TELSTRA LIMITED17/04/2000—
0384020000…10,000POWERTEL LIMITEDPIPE INTERNATIONAL (AUSTRALIA) PTY LTD23/02/200124/03/2026
0384040000…10,000=OPTUS MOBILE PTY LIMITED11/01/2008—
0384050000…10,000=TELSTRA LIMITED05/06/2000—
0384060000…10,000=OPTUS MOBILE PTY LIMITED10/04/2008—
0384070000…1,000ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED24/12/200411/08/2015
0384071000…1,000=NETSIP PTY LTD26/10/2021—
0384072000…1,000=AGILE PTY LTD31/05/200508/02/2011
0384073000…1,000=OPTUS NETWORKS PTY LIMITED20/06/2005—
0384074000…1,000GOTALK LIMITEDSYMBIO NETWORKS PTY LTD24/06/200525/07/2013
0384075000…1,000=VIRTUTEL PTY LTD18/03/2015—
0384076000…1,000=VIRTUTEL PTY LTD20/12/2015—
0384077000…1,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0384078000…1,000=NETSIP PTY LTD14/02/2018—
0384079000…1,000=ADARGA PTY LTD16/09/2025—
0384080000…1,000=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0384081000…1,000=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0384082000…1,000=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0384083000…1,000=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0384084000…1,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED17/09/2019—
0384085000…1,000=LMGPS LTD23/11/2023—
0384086000…1,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0384087000…5,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED17/06/2021—
0384092000…1,000=SYMBIO NETWORKS PTY LTD29/04/2022—
0384093000…1,000=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0384094000…1,000=NETSIP PTY LTD12/05/2025—
0384095000…1,000=NETERA PTY LTD24/10/2025—
0384096000…1,000=SYMBIO NETWORKS PTY LTD19/08/2026—
0384097000…4,000=TWILIO AUSTRALIA PTY LTD01/10/2026—
0384180000…10,000=OPTUS NETWORKS PTY LIMITED24/08/2006—
0384272000…2,000=OPTUS NETWORKS PTY LIMITED18/09/2015—
0384310000…10,000=TELSTRA LIMITED17/04/2000—
0384320000…10,000=TELSTRA LIMITED17/02/2000—
0384372000…3,000=OPTUS NETWORKS PTY LIMITED18/01/2019—
0384570000…10,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED16/12/2002—
0384600000…3,000=OPTUS NETWORKS PTY LIMITED13/03/2024—
0384680000…10,000=OPTUS NETWORKS PTY LIMITED25/07/2012—
0384870000…1,000=OPTUS NETWORKS PTY LIMITED30/07/2024—
0384880000…3,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED20/03/2018—
0390070000…1,000RSL COM AUSTRALIA PTY LIMITEDSYMBIO NETWORKS PTY LTD17/01/200708/10/2009
0390090000…3,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED31/03/199913/01/2016
0392170000…3,000=TELSTRA LIMITED30/06/1991—
0392191000…1,000=TELSTRA LIMITED30/06/1991—
0392198000…2,000=TELSTRA LIMITED30/06/1991—
0394010000…10,000=TELSTRA LIMITED30/06/1991—
0394020000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED02/07/199210/02/2003
0394040000…10,000=TELSTRA LIMITED30/06/1991—
0394070000…4,000=TELSTRA LIMITED30/06/1991—
0394075000…5,000=TELSTRA LIMITED30/06/1991—
0394081000…1,000=TELSTRA LIMITED30/06/1991—
0394083000…7,000=TELSTRA LIMITED30/06/1991—
0394090000…10,000=TELSTRA LIMITED12/06/1996—
0394220000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED22/05/199510/02/2003
0394230000…10,000HUTCHISON TELECOMMUNICATIONS (AUSTRALIA) LIMITEDTPG TELECOM LIMITED24/12/199828/04/2017
0394240000…10,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0394300000…100,000=TELSTRA LIMITED30/06/1991—
0394440000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED22/05/199510/02/2003
0394510000…10,000SINGTEL OPTUS PTY LIMITEDOPTUS NETWORKS PTY LIMITED14/02/200110/02/2003
0394610000…10,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0394751000…3,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED15/03/2017—
0394940000…10,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED14/07/199924/03/2026

Numbering areas next to Eltham in the register

Immediately above Eltham's blocks in the 0384…, 0394…, 0392… and 0390… prefixes sit Melbourne, Werribee, Ringwood, Clayton, Croydon and Dandenong.

Numbering areaFirst blockBlocksCarriers
Melbourne0384004000…21916
Werribee0392020000…51
Ringwood0392100000…71
Clayton0392117000…122
Croydon0392120000…71
Dandenong0392121000…61

Had a call from a Eltham 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.

Eltham numbers: questions and answers

Where is the Eltham numbering area?

Eltham is in Victoria, in the Nillumbik council area. The nearest other numbering areas are Ringwood (12 km), Croydon (14 km) and Melbourne (20 km).

What area code does Eltham use?

Eltham numbers use area code 03. Its register blocks start with 03 84, 03 94, 03 92 and 03 90. From overseas, drop the 0 and dial +61 3 followed by the eight-digit local number.

What time zone is Eltham in?

Eltham 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 Eltham phone numbers?

The ACMA register lists 22 carriers with allocated blocks in Eltham. By allocated numbers the largest are Telstra (49.4%), Optus Networks (18.7%) and Optus Mobile (5.6%). A number can since have been ported to another provider.

When were Eltham numbers first allocated?

The oldest block on record for Eltham was allocated on 30 June 1991 and is held by Telstra; the newest on 1 October 2026, to Twilio Australia.

How do I report a scam call from a Eltham 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 Eltham

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