Bordertown: landline numbers and carriers

Bordertown is one of the town-level numbering areas the ACMA register uses under area code 08 (SA, WA & NT). The register lists 32 number blocks for it with about 68,000 allocated numbers, held by 19 carriers and spread over the 0877… and 0887… dialling prefixes. That makes Bordertown the 104th largest of 640 numbering areas under 08 by block count, with 0.24% of the area code's allocated numbers. A landline that calls you from one of these blocks was issued for the Bordertown area — though the line may since have been ported, and caller ID can be spoofed.

Source: ACMA register, data as of 16/10/2026

32blocks in the register
19carriers with allocations
68,000allocated numbers
1991first allocation

Where Bordertown is

State or territory
South Australia
Council area
Tatiara
Local time
— ACST, UTC+9:30; ACDT, UTC+10:30 in summer
Number format
08 77xx xxxx; from overseas +61 8 77xx xxxx
Nearest numbering areas
Cannawigara (15 km), Wirrega (22 km), Serviceton (23 km, area code 03), Western Flat (29 km), Bangham (30 km)

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

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

How Bordertown was numbered

The oldest block in Bordertown 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 — 6 of 32 — date from 2005–2009, but allocations here span 35 years. 26 of the blocks are the standard 1,000-number size, and 2 are 10,000 numbers or larger. 6 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
1990–19942
2000–20044
2005–20096
2010–20144
2015–20196
2020–20246
2025–20294

The carriers in Bordertown

TELSTRA LIMITED holds the largest share here with 54.4% of allocated numbers across 4 blocks; SYMBIO NETWORKS PTY LTD is second with 8.8%, and 17 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. SYMBIO NETWORKS PTY LTD (3), SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED (1) and PRIMUS TELECOMMUNICATIONS PTY LIMITED (1) hold blocks originally allocated to another carrier.

CarrierBlocksNumbersShareFirst blockLatest block
TELSTRA LIMITED437,00054.4%30/06/199119/01/2009
SYMBIO NETWORKS PTY LTD66,0008.8%28/06/200519/08/2026
SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED24,0005.9%30/03/200014/07/2016
PRIMUS TELECOMMUNICATIONS PTY LIMITED33,0004.4%24/12/200403/02/2012
NETSIP PTY LTD22,0002.9%14/02/201826/10/2021
OPTUS NETWORKS PTY LIMITED22,0002.9%16/06/200502/08/2019
OPTUS MOBILE PTY LIMITED12,0002.9%04/10/200704/10/2007
ADARGA PTY LTD11,0001.5%16/09/202516/09/2025
AGILE PTY LTD11,0001.5%12/12/200612/12/2006
C2A INTERNET.COM.AU PTY. LTD.11,0001.5%13/07/202313/07/2023
CHECK TECHNOLOGY GROUP PTY LTD11,0001.5%31/01/202231/01/2022
CHIME COMMUNICATIONS PTY LTD11,0001.5%14/07/200414/07/2004
LMGPS LTD11,0001.5%23/11/202323/11/2023
NETERA PTY LTD11,0001.5%24/10/202524/10/2025
PIPE NETWORKS PTY LIMITED11,0001.5%24/09/201224/09/2012
PIVOTEL SATELLITE PTY LIMITED11,0001.5%16/04/202516/04/2025
THE TRUSTEE FOR READING FAMILY TRUST11,0001.5%21/10/201921/10/2019
VIRTUTEL PTY LTD11,0001.5%20/12/201520/12/2015
WHY PAY MORE 4 LESS PTY LTD11,0001.5%10/05/201810/05/2018

Number blocks registered for Bordertown

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

Block startNumbersOriginal allocateeCurrent holderAllocatedTransferred
0877002000…1,000=SYMBIO NETWORKS PTY LTD24/04/2014—
0877048000…1,000=VIRTUTEL PTY LTD20/12/2015—
0877089000…1,000=SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED14/07/2016—
0877130000…1,000=NETSIP PTY LTD14/02/2018—
0877173000…1,000=ADARGA PTY LTD16/09/2025—
0877212000…1,000=THE TRUSTEE FOR READING FAMILY TRUST21/10/2019—
0877266000…1,000=NETSIP PTY LTD26/10/2021—
0877267000…1,000=SYMBIO NETWORKS PTY LTD19/06/2020—
0877305000…1,000=WHY PAY MORE 4 LESS PTY LTD10/05/2018—
0877385000…1,000=OPTUS NETWORKS PTY LIMITED02/08/2019—
0877393000…1,000=CHECK TECHNOLOGY GROUP PTY LTD31/01/2022—
0877397000…1,000TWILIO AUSTRALIA PTY LTDSYMBIO NETWORKS PTY LTD24/09/202015/10/2020
0877495000…1,000=C2A INTERNET.COM.AU PTY. LTD.13/07/2023—
0877536000…1,000=LMGPS LTD23/11/2023—
0877577000…1,000=PIVOTEL SATELLITE PTY LIMITED16/04/2025—
0877619000…1,000=NETERA PTY LTD24/10/2025—
0877660000…1,000=SYMBIO NETWORKS PTY LTD19/08/2026—
0887006000…3,000IPTEL PTY LIMITEDSOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED30/03/200001/12/2004
0887029000…1,000ENGIN PTY LIMITEDPRIMUS TELECOMMUNICATIONS PTY LIMITED24/12/200411/08/2015
0887223000…1,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED24/05/2005—
0887326000…1,000GOTALK LIMITEDSYMBIO NETWORKS PTY LTD28/06/200526/07/2013
0887401000…1,000=OPTUS NETWORKS PTY LIMITED16/06/2005—
0887500000…5,000=TELSTRA LIMITED30/06/1991—
0887520000…20,000=TELSTRA LIMITED30/06/1991—
0887701000…1,000=AGILE PTY LTD12/12/200622/11/2011
0887775000…2,000=TELSTRA LIMITED19/01/2009—
0887795000…1,000=PRIMUS TELECOMMUNICATIONS PTY LIMITED03/02/2012—
0887846000…1,000IVOX PTY LTDSYMBIO NETWORKS PTY LTD18/06/201213/06/2014
0887896000…1,000AAPT LIMITEDPIPE NETWORKS PTY LIMITED24/09/201224/03/2026
0887900000…10,000=TELSTRA LIMITED22/12/2002—
0887911000…1,000=CHIME COMMUNICATIONS PTY LTD14/07/2004—
0887950000…2,000=OPTUS MOBILE PTY LIMITED04/10/2007—

Numbering areas next to Bordertown in the register

Immediately below and above Bordertown's blocks in the 0877… and 0887… prefixes sit Bangham, Wrattonbully, Cannawigara, Colebatch, Keith, Laffer, Makin and Marcollat.

Numbering areaFirst blockBlocksCarriers
Bangham0877000000…2919
Wrattonbully0877001000…3020
Cannawigara0877003000…2919
Colebatch0877004000…2919
Keith0877005000…3019
Laffer0877006000…2919
Makin0877007000…2919
Marcollat0877008000…3019

Had a call from a Bordertown 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.

  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.

  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.

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.

Bordertown numbers: questions and answers

Where is the Bordertown numbering area?

Bordertown is in South Australia, in the Tatiara council area. The nearest other numbering areas are Cannawigara (15 km), Wirrega (22 km) and Serviceton (23 km).

What area code does Bordertown use?

Bordertown numbers use area code 08. Its register blocks start with 08 77 and 08 87. From overseas, drop the 0 and dial +61 8 followed by the eight-digit local number.

What time zone is Bordertown in?

Bordertown 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 Bordertown phone numbers?

The ACMA register lists 19 carriers with allocated blocks in Bordertown. By allocated numbers the largest are Telstra (54.4%), Symbio Networks (8.8%) and Soul Pattinson Telecommunications (5.9%). A number can since have been ported to another provider.

When were Bordertown numbers first allocated?

The oldest block on record for Bordertown 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 Bordertown 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 Bordertown

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