Carrier selection codes (14xx) are now also used, and carrier pre-selection is widely used. Carrier selection codes These four-digit numbers are dialled before the destination number to complete and bill a call by a carrier other than the subscriber's service provider. For example, to use AAPT to call a number in Tokyo, Japan, subscribers would dial 1414 0011 81 3 xxxx xxxx, or to use Optus to call a number in Perth they would dial 1456 08 xxxx xxxx. It is not clear if all these prefixes will actually work. Not all carriers have interconnect agreements with each other 1410 – Telstra 1411 – Telstra 1412 – TPG (Was Chime) 1413 – Telstra 1414 – TPG (Was AAPT) 1415 – Vodafone 1422 – Premier Technologies 1423 – TPG (was Soul Pattinson) 1428 – Verizon Australia 1431 – Vodafone Hutchison 1434 – Symbio Networks 1441 – TPG (was Soul Pattinson) 1447 – TransACT 1450 – Pivotel 1455 – Netsip 1456 – Optus 1464 – TPG (Was Agile) 1466 – Primus 1468 – Telpacific 1469 – Lycamobile 1474 – Powertel 1477 – Vocus 1488 – Symbio Networks 1499 – VIRTUTEL Supplementary control services 1831 – Block Caller ID sending 1832 – Unblock Caller ID sending Other numbers and codes Test numbers Telstra Landline Test numbers 12722123 – Playback the last connected or current landline number (add 1832 in front for private numbers) 12722199 – Ringback the current landline number Telstra payphone test numbers 12722101 - will only take 1¢ per metering pulses 0488076353 - will test the SMS function of the phone Optus landline test numbers 1272312 – Playback the last connected or current landline number 1272399 – Ringback the current landline number From other subscribers including VoIP providers 1800801920 – Playback the last connected or current landline number Other 12711 – Current long-distance Carrier Name Historic numbering plans 2010s Many old numbers were officially removed from the Telecommunications Numbering Plan in the 2015 version, whether in the replacement version or a previous variation. 018 AMPS phone numbers are completely removed. 0500 Personal Numbers are removed. Unused prefixes such as 114 mass calling service are removed. 1990s 0055 numbers were previously premium-rate numbers, but have been moved into 190 numbers before 1999. The original toll-free area code was 008, but the format was changed to 1800. Directory assistance used various numbers: 013 for local calls, 0175 for other national calls, and 0103