Portland (VIC): landline numbers and carriers
Portland (VIC) is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 39 number blocks for it with about 68,200 allocated numbers, held by 20 carriers and spread over the 0345… and 0355… dialling prefixes. That makes Portland (VIC) the 41st largest of 475 numbering areas under 03 by block count, with 0.2% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Portland (VIC) area — though the line may since have been ported, and caller ID can be spoofed.
Source: ACMA register, data as of 14/10/2026
Where Portland (VIC) is
- State or territory
- Victoria
- Council area
- Glenelg
- ABS locality
- Portland (Vic.)
- Local time
- — AEST, UTC+10; AEDT, UTC+11 in summer
- Number format
- 03 45xx xxxx; from overseas +61 3 45xx xxxx
- Nearest numbering areas
- Tyrendarra (23 km), Heywood (26 km), Mount Richmond (34 km), Bessiebelle (37 km), Port Fairy (49 km)
Locality, council and state: ABS ASGS Edition 3 (CC BY 4.0). Distances are straight-line between localities.
How Portland (VIC) was numbered
The oldest block in Portland (VIC) 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 39 — date from 2010–2014, but allocations here span 35 years. 10 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, and 2 are 10,000 numbers or larger. 9 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, TWILIO AUSTRALIA PTY LTD and VOCUS PTY LTD as original allocatees of blocks now held by other carriers.
| Period | Blocks allocated |
|---|---|
| 1990–1994 | 4 |
| 2000–2004 | 4 |
| 2005–2009 | 6 |
| 2010–2014 | 7 |
| 2015–2019 | 7 |
| 2020–2024 | 7 |
| 2025–2029 | 4 |
The carriers in Portland (VIC)
TELSTRA LIMITED holds the largest share here with 71.8% of allocated numbers across 5 blocks; OPTUS NETWORKS PTY LIMITED is second with 7.5%, and 18 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 (1), SYMBIO NETWORKS PTY LTD (4) and SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.
| Carrier | Blocks | Numbers | Share | First block | Latest block |
|---|---|---|---|---|---|
| TELSTRA LIMITED | 5 | 49,000 | 71.8% | 30/06/1991 | 02/03/2020 |
| OPTUS NETWORKS PTY LIMITED | 4 | 5,100 | 7.5% | 12/11/2004 | 18/01/2019 |
| SYMBIO NETWORKS PTY LTD | 8 | 3,500 | 5.1% | 23/06/2005 | 19/08/2026 |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 3,100 | 4.5% | 30/03/2000 | 14/07/2016 |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 2,100 | 3.1% | 24/12/2004 | 04/06/2010 |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 2.9% | 08/10/2007 | 08/10/2007 |
| PIPE NETWORKS PTY LIMITED | 2 | 1,100 | 1.6% | 03/07/2007 | 01/05/2014 |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 1.5% | 14/07/2004 | 14/07/2004 |
| NETSIP PTY LTD | 2 | 200 | 0.3% | 14/02/2018 | 26/10/2021 |
| ADARGA PTY LTD | 1 | 100 | 0.1% | 16/09/2025 | 16/09/2025 |
| AGILE PTY LTD | 1 | 100 | 0.1% | 03/04/2007 | 03/04/2007 |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.1% | 13/07/2023 | 13/07/2023 |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.1% | 31/01/2022 | 31/01/2022 |
| GENNEXT ENTERPRISES PTY LTD | 1 | 100 | 0.1% | 03/10/2019 | 03/10/2019 |
| LMGPS LTD | 1 | 100 | 0.1% | 23/11/2023 | 23/11/2023 |
| NETERA PTY LTD | 1 | 100 | 0.1% | 24/10/2025 | 24/10/2025 |
| PIVOTEL SATELLITE PTY LIMITED | 1 | 100 | 0.1% | 16/04/2025 | 16/04/2025 |
| THE TRUSTEE FOR READING FAMILY TRUST | 1 | 100 | 0.1% | 21/10/2019 | 21/10/2019 |
| VIRTUTEL PTY LTD | 1 | 100 | 0.1% | 20/12/2015 | 20/12/2015 |
| WHY PAY MORE 4 LESS PTY LTD | 1 | 100 | 0.1% | 10/05/2018 | 10/05/2018 |
Number blocks registered for Portland (VIC)
Every registered block for this area is allocated to a carrier. All 39 blocks, ascending:
| Block start | Numbers | Original allocatee | Current holder | Allocated | Transferred |
|---|---|---|---|---|---|
| 0345043000… | 1,000 | = | PRIMUS TELECOMMUNICATIONS PTY LIMITED | 04/06/2010 | — |
| 0345053000… | 1,000 | = | OPTUS NETWORKS PTY LIMITED | 25/07/2012 | — |
| 0345054000… | 1,000 | = | SYMBIO NETWORKS PTY LTD | 19/11/2012 | — |
| 0345058800… | 100 | = | VIRTUTEL PTY LTD | 20/12/2015 | — |
| 0345101900… | 100 | = | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 14/07/2016 | — |
| 0345108000… | 100 | = | NETSIP PTY LTD | 14/02/2018 | — |
| 0345119200… | 100 | = | THE TRUSTEE FOR READING FAMILY TRUST | 21/10/2019 | — |
| 0345129200… | 100 | = | ADARGA PTY LTD | 16/09/2025 | — |
| 0345139400… | 100 | = | WHY PAY MORE 4 LESS PTY LTD | 10/05/2018 | — |
| 0345141000… | 2,000 | = | TELSTRA LIMITED | 02/03/2020 | — |
| 0345172000… | 3,000 | = | OPTUS NETWORKS PTY LIMITED | 18/01/2019 | — |
| 0345178400… | 100 | TWILIO AUSTRALIA PTY LTD | SYMBIO NETWORKS PTY LTD | 24/09/2020 | 24/02/2021 |
| 0345179600… | 100 | = | GENNEXT ENTERPRISES PTY LTD | 03/10/2019 | — |
| 0345195500… | 100 | = | NETSIP PTY LTD | 26/10/2021 | — |
| 0345205600… | 100 | = | CHECK TECHNOLOGY GROUP PTY LTD | 31/01/2022 | — |
| 0345217700… | 100 | = | C2A INTERNET.COM.AU PTY. LTD. | 13/07/2023 | — |
| 0345227800… | 100 | = | LMGPS LTD | 23/11/2023 | — |
| 0345239900… | 100 | = | PIVOTEL SATELLITE PTY LIMITED | 16/04/2025 | — |
| 0345253000… | 100 | = | NETERA PTY LTD | 24/10/2025 | — |
| 0345256000… | 1,000 | = | SYMBIO NETWORKS PTY LTD | 19/06/2020 | — |
| 0345267100… | 100 | = | SYMBIO NETWORKS PTY LTD | 19/08/2026 | — |
| 0355009000… | 1,000 | = | OPTUS NETWORKS PTY LIMITED | 12/11/2004 | — |
| 0355136000… | 3,000 | IPTEL PTY LIMITED | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 30/03/2000 | 01/12/2004 |
| 0355200000… | 1,000 | = | TELSTRA LIMITED | 30/06/1991 | — |
| 0355210000… | 16,000 | = | TELSTRA LIMITED | 30/06/1991 | — |
| 0355230000… | 10,000 | = | TELSTRA LIMITED | 30/06/1991 | — |
| 0355248000… | 1,000 | ENGIN PTY LIMITED | PRIMUS TELECOMMUNICATIONS PTY LIMITED | 24/12/2004 | 11/08/2015 |
| 0355250000… | 20,000 | = | TELSTRA LIMITED | 30/06/1991 | — |
| 0355309000… | 1,000 | = | CHIME COMMUNICATIONS PTY LTD | 14/07/2004 | — |
| 0355350500… | 100 | AAPT LIMITED | PIPE NETWORKS PTY LIMITED | 03/07/2007 | 24/03/2026 |
| 0355392100… | 100 | = | PRIMUS TELECOMMUNICATIONS PTY LIMITED | 24/05/2005 | — |
| 0355392200… | 100 | GOTALK LIMITED | SYMBIO NETWORKS PTY LTD | 23/06/2005 | 23/08/2013 |
| 0355392400… | 100 | = | AGILE PTY LTD | 03/04/2007 | 03/09/2012 |
| 0355392500… | 100 | VOCUS PTY LTD | OPTUS NETWORKS PTY LIMITED | 13/08/2010 | 22/11/2010 |
| 0355392600… | 100 | IVOX PTY LTD | SYMBIO NETWORKS PTY LTD | 18/06/2012 | 23/06/2014 |
| 0355392700… | 100 | = | SYMBIO NETWORKS PTY LTD | 24/04/2014 | — |
| 0355450000… | 1,000 | GOTALK LIMITED | SYMBIO NETWORKS PTY LTD | 11/12/2006 | 23/08/2013 |
| 0355484000… | 2,000 | = | OPTUS MOBILE PTY LIMITED | 08/10/2007 | — |
| 0355799000… | 1,000 | AAPT LIMITED | PIPE NETWORKS PTY LIMITED | 01/05/2014 | 24/03/2026 |
Numbering areas next to Portland (VIC) in the register
Immediately below and above Portland (VIC)'s blocks in the 0345… and 0355… prefixes sit Ozenkadnook, Poolaijelo, Balmoral, Harrow, Woodhouse, Lake Mundi, Apsley, Bessiebelle, Caramut, Casterton, Cavendish and Chetwynd.
| Numbering area | First block | Blocks | Carriers |
|---|---|---|---|
| Ozenkadnook | 0345030000… | 28 | 19 |
| Poolaijelo | 0345032000… | 28 | 19 |
| Balmoral | 0345034000… | 29 | 18 |
| Harrow | 0345036000… | 27 | 18 |
| Woodhouse | 0345038000… | 29 | 19 |
| Lake Mundi | 0345040000… | 28 | 18 |
| Apsley | 0345055000… | 28 | 18 |
| Bessiebelle | 0345055300… | 28 | 18 |
| Caramut | 0345055500… | 28 | 18 |
| Casterton | 0345055600… | 29 | 18 |
| Cavendish | 0345055700… | 30 | 18 |
| Chetwynd | 0345055800… | 29 | 18 |
Had a call from a Portland (VIC) number?
No clear pattern in reports on these numbers yet. If a call worried you:
- 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.
- 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.
- 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.
- 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.
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.
Portland (VIC) numbers: questions and answers
Where is the Portland (VIC) numbering area?
Portland (VIC) is in Victoria, in the Glenelg council area. The nearest other numbering areas are Tyrendarra (23 km), Heywood (26 km) and Mount Richmond (34 km).
What area code does Portland (VIC) use?
Portland (VIC) numbers use area code 03. Its register blocks start with 03 45 and 03 55. From overseas, drop the 0 and dial +61 3 followed by the eight-digit local number.
What time zone is Portland (VIC) in?
Portland (VIC) 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 Portland (VIC) phone numbers?
The ACMA register lists 20 carriers with allocated blocks in Portland (VIC). By allocated numbers the largest are Telstra (71.8%), Optus Networks (7.5%) and Symbio Networks (5.1%). A number can since have been ported to another provider.
When were Portland (VIC) numbers first allocated?
The oldest block on record for Portland (VIC) 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 Portland (VIC) 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 Portland (VIC)
Scammers spoof local landline numbers to look nearby. Guides: Australian area codes, how caller ID spoofing works.