Portland (NSW): landline numbers and carriers

Portland (NSW) is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 32 number blocks for it with about 22,000 allocated numbers, held by 20 carriers and spread over the 0253… and 0263… dialling prefixes. That makes Portland (NSW) the 109th largest of 576 numbering areas under 02 by block count, with 0.05% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Portland (NSW) area — though the line may since have been ported, and caller ID can be spoofed.

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

32blocks in the register
20carriers with allocations
22,000allocated numbers
1991first allocation

Where Portland (NSW) is

State or territory
New South Wales
Council area
Lithgow
ABS locality
Portland (NSW)
Local time
— AEST, UTC+10; AEDT, UTC+11 in summer
Number format
02 53xx xxxx; from overseas +61 2 53xx xxxx
Nearest numbering areas
Meadow Flat (11 km), Yetholme (17 km), Lithgow (22 km), Limekilns (25 km), Glen Davis (34 km)

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

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

How Portland (NSW) was numbered

The oldest block in Portland (NSW) 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 32 — date from 2015–2019, but allocations here span 35 years. 7 of the blocks are the standard 1,000-number size, 20 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
1990–19943
2000–20043
2005–20095
2010–20144
2015–20197
2020–20246
2025–20294

The carriers in Portland (NSW)

Portland (NSW) is spread across carriers: TELSTRA LIMITED leads with 27.3% of allocated numbers ahead of OPTUS NETWORKS PTY LIMITED on 18.2%, and 20 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. SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1), SYMBIO NETWORKS PTY LTD (3) and PIPE NETWORKS PTY LIMITED (2) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED36,00027.3%30/06/199130/06/1991
OPTUS NETWORKS PTY LIMITED24,00018.2%07/06/200519/12/2014
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED23,10014.1%30/03/200014/07/2016
SYMBIO NETWORKS PTY LTD62,40010.9%22/06/200519/08/2026
OPTUS MOBILE PTY LIMITED12,0009.1%23/09/200823/09/2008
PIPE NETWORKS PTY LIMITED21,1005%03/09/201201/05/2014
PRIMUS TELECOMMUNICATIONS PTY LIMITED21,1005%24/12/200424/05/2005
CHIME COMMUNICATIONS PTY LTD11,0004.5%14/07/200414/07/2004
NETSIP PTY LTD22000.9%14/02/201826/10/2021
ADARGA PTY LTD11000.5%16/09/202516/09/2025
AGILE PTY LTD11000.5%03/04/200703/04/2007
C2A INTERNET.COM.AU PTY. LTD.11000.5%13/07/202313/07/2023
CHECK TECHNOLOGY GROUP PTY LTD11000.5%31/01/202231/01/2022
GENNEXT ENTERPRISES PTY LTD11000.5%03/10/201903/10/2019
LMGPS LTD11000.5%23/11/202323/11/2023
NETERA PTY LTD11000.5%24/10/202524/10/2025
PIVOTEL SATELLITE PTY LIMITED11000.5%16/04/202516/04/2025
THE TRUSTEE FOR READING FAMILY TRUST11000.5%21/10/201921/10/2019
VIRTUTEL PTY LTD11000.5%20/12/201520/12/2015
WHY PAY MORE 4 LESS PTY LTD11000.5%10/05/201810/05/2018

Number blocks registered for Portland (NSW)

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

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0253020800…100=VIRTUTEL PTY LTD20/12/2015—
0253025300…100TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202024/02/2021
0253064000…1,000=OPTUS NETWORKS PTY LIMITED07/06/2005—
0253180000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED01/05/201424/03/2026
0253185000…3,000=OPTUS NETWORKS PTY LIMITED19/12/2014—
0253192000…1,000=SYMBIO NETWORKS PTY LTD16/04/2015—
0253246300…100=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0253258600…100=NETSIP PTY LTD14/02/2018—
0253271200…100=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0253286200…100=LMGPS LTD23/11/2023—
0253298800…100=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0253401400…100=GENNEXT ENTERPRISES PTY LTD03/10/2019—
0253409000…100=NETSIP PTY LTD26/10/2021—
0253421300…100=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0253473600…100=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0253491900…100=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0253506000…1,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0253511200…100=ADARGA PTY LTD16/09/2025—
0253523500…100=NETERA PTY LTD24/10/2025—
0253558000…2,000=OPTUS MOBILE PTY LIMITED23/09/2008—
0253628800…100=SYMBIO NETWORKS PTY LTD19/08/2026—
0263190000…3,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0263276000…1,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0263506000…1,000=TELSTRA LIMITED30/06/1991—
0263554000…2,000=TELSTRA LIMITED30/06/1991—
0263590000…3,000=TELSTRA LIMITED30/06/1991—
0263950000…1,000ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED24/12/200411/08/2015
0263992100…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED24/05/2005—
0263992200…100GOTALK LIMITEDSYMBIO NETWORKS PTY LTD22/06/200516/07/2013
0263992400…100=AGILE PTY LTD03/04/200703/09/2012
0263992500…100IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201224/06/2014
0263992600…100AAPT LIMITEDPIPE NETWORKS PTY LIMITED03/09/201224/03/2026

Numbering areas next to Portland (NSW) in the register

Immediately below and above Portland (NSW)'s blocks in the 0253… and 0263… prefixes sit Milvale, Monteagle, Murringo, Oberon, Ooma, Running Stream, Quandialla, Reids Flat, Rockley, Tyagong, Woodstock (NSW) and Yetholme.

Numbering areaFirst blockBlocksCarriers
Milvale0253017700…2818
Monteagle0253017900…2918
Murringo0253018800…2818
Oberon0253019800…3219
Ooma0253019900…2819
Running Stream0253020100…2919
Quandialla0253020900…2919
Reids Flat0253021800…2919
Rockley0253021900…3219
Tyagong0253022900…2819
Woodstock (NSW)0253023900…3019
Yetholme0253024700…3119

Had a call from a Portland (NSW) 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 NSW Police Force. 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.

Portland (NSW) numbers: questions and answers

Where is the Portland (NSW) numbering area?

Portland (NSW) is in New South Wales, in the Lithgow council area. The nearest other numbering areas are Meadow Flat (11 km), Yetholme (17 km) and Lithgow (22 km).

What area code does Portland (NSW) use?

Portland (NSW) numbers use area code 02. Its register blocks start with 02 53 and 02 63. From overseas, drop the 0 and dial +61 2 followed by the eight-digit local number.

What time zone is Portland (NSW) in?

Portland (NSW) 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 (NSW) phone numbers?

The ACMA register lists 20 carriers with allocated blocks in Portland (NSW). By allocated numbers the largest are Telstra (27.3%), Optus Networks (18.2%) and Soul Pattinson Telecommunications (14.1%). A number can since have been ported to another provider.

When were Portland (NSW) numbers first allocated?

The oldest block on record for Portland (NSW) 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 (NSW) number?

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

Check a number from Portland (NSW)

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