Penneshaw: landline numbers and carriers

Penneshaw is one of the town-level numbering areas the ACMA register uses under area code 08 (SA, WA & NT). The register lists 33 number blocks for it with about 18,200 allocated numbers, held by 20 carriers and spread over the 0875… and 0885… dialling prefixes. That makes Penneshaw the 80th largest of 640 numbering areas under 08 by block count, with 0.07% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Penneshaw 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
20carriers with allocations
18,200allocated numbers
1991first allocation

Where Penneshaw is

State or territory
South Australia
Council area
Kangaroo Island
Local time
— ACST, UTC+9:30; ACDT, UTC+10:30 in summer
Number format
08 75xx xxxx; from overseas +61 8 75xx xxxx
Nearest numbering areas
Kingscote (31 km), Yankalilla (47 km), Parndana (62 km), Victor Harbor (64 km), Willunga (76 km)

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

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

How Penneshaw was numbered

The oldest block in Penneshaw 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 — 8 of 33 — date from 2015–2019, 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. 8 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, RSL COM AUSTRALIA PTY LIMITED and TWILIO AUSTRALIA PTY LTD as original allocatees of blocks now held by other carriers.

PeriodBlocks allocated
1990–19941
1995–19993
2000–20042
2005–20097
2010–20142
2015–20198
2020–20246
2025–20294

The carriers in Penneshaw

Penneshaw is spread across carriers: TELSTRA LIMITED leads with 33% of allocated numbers ahead of SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED on 17%, 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 (4) and PIPE NETWORKS PTY LIMITED (2) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED46,00033%30/06/199121/12/1998
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED23,10017%30/03/200014/07/2016
SYMBIO NETWORKS PTY LTD72,50013.7%23/06/200519/08/2026
OPTUS MOBILE PTY LIMITED12,00011%22/09/200822/09/2008
PIPE NETWORKS PTY LIMITED21,1006%24/09/201222/02/2016
CHIME COMMUNICATIONS PTY LTD11,0005.5%14/07/200414/07/2004
OPTUS NETWORKS PTY LIMITED11,0005.5%14/06/200514/06/2005
NETSIP PTY LTD22001.1%14/02/201826/10/2021
PRIMUS TELECOMMUNICATIONS PTY LIMITED22001.1%20/07/200523/05/2006
ADARGA PTY LTD11000.5%16/09/202516/09/2025
AGILE PTY LTD11000.5%13/12/200613/12/2006
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 Penneshaw

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

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0875008000…1,000=OPTUS NETWORKS PTY LIMITED14/06/2005—
0875206000…2,000=OPTUS MOBILE PTY LIMITED22/09/2008—
0875249100…100=VIRTUTEL PTY LTD20/12/2015—
0875275000…1,000=SYMBIO NETWORKS PTY LTD30/05/2016—
0875296000…100=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0875303900…100=NETSIP PTY LTD14/02/2018—
0875318700…100=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0875328700…100=ADARGA PTY LTD16/09/2025—
0875342500…100=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0875438300…100=GENNEXT ENTERPRISES PTY LTD03/10/2019—
0875441900…100TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202024/02/2021
0875444500…100=NETSIP PTY LTD26/10/2021—
0875458400…100=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0875496400…100=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0875510400…100=LMGPS LTD23/11/2023—
0875517000…1,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0875530300…100=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0875602200…100=NETERA PTY LTD24/10/2025—
0875618100…100=SYMBIO NETWORKS PTY LTD19/08/2026—
0885160000…3,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0885169100…100=PRIMUS TELECOMMUNICATIONS PTY LIMITED23/05/2006—
0885169200…100GOTALK LIMITEDSYMBIO NETWORKS PTY LTD23/06/200518/07/2013
0885169400…100=AGILE PTY LTD13/12/200618/03/2011
0885169500…100IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201217/06/2014
0885169600…100AAPT LIMITEDPIPE NETWORKS PTY LIMITED24/09/201224/03/2026
0885169800…100ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED20/07/200511/08/2015
0885169900…100RSL COM AUSTRALIA PTY LIMITEDSYMBIO NETWORKS PTY LTD16/01/200709/10/2009
0885352000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED22/02/201624/03/2026
0885517000…1,000=TELSTRA LIMITED30/06/1991—
0885531000…1,000=TELSTRA LIMITED21/12/1998—
0885536000…3,000=TELSTRA LIMITED21/12/1998—
0885591000…1,000=TELSTRA LIMITED21/12/1998—
0885907000…1,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—

Numbering areas next to Penneshaw in the register

Immediately below and above Penneshaw's blocks in the 0875… and 0885… prefixes sit Taplan, Wanbi, Wunkar, Karatta, Kingscote, Parndana, Mallala, Two Wells, Windsor (SA), Callington, Hartley and Langhorne Creek.

Numbering areaFirst blockBlocksCarriers
Taplan0875002000…3020
Wanbi0875003000…3020
Wunkar0875004000…2920
Karatta0875005000…3119
Kingscote0875006000…3719
Parndana0875007000…3220
Mallala0875009000…2919
Two Wells0875010000…3220
Windsor (SA)0875011000…3019
Callington0875012000…3319
Hartley0875013000…3219
Langhorne Creek0875014000…3219

Had a call from a Penneshaw 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 South Australia 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.

Penneshaw numbers: questions and answers

Where is the Penneshaw numbering area?

Penneshaw is in South Australia, in the Kangaroo Island council area. The nearest other numbering areas are Kingscote (31 km), Yankalilla (47 km) and Parndana (62 km).

What area code does Penneshaw use?

Penneshaw numbers use area code 08. Its register blocks start with 08 75 and 08 85. From overseas, drop the 0 and dial +61 8 followed by the eight-digit local number.

What time zone is Penneshaw in?

Penneshaw is on Australian Central Time (ACST, UTC+9:30), with daylight saving (ACDT, UTC+10:30) from the first Sunday in October to the first Sunday in April.

Which carriers hold Penneshaw phone numbers?

The ACMA register lists 20 carriers with allocated blocks in Penneshaw. By allocated numbers the largest are Telstra (33%), Soul Pattinson Telecommunications (17%) and Symbio Networks (13.7%). A number can since have been ported to another provider.

When were Penneshaw numbers first allocated?

The oldest block on record for Penneshaw 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 Penneshaw number?

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

Check a number from Penneshaw

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