1234 is Sensis personal assistance) 124xx – Other operator services (e.g. 12456 is Sensis Call Connect) 125xxx – Telstra mobile services (e.g. 125111 is Telstra mobile customer service) 1268x, 1268 xxxx and 1268 xxx xxx – Internal network services 127 – Testing numbers (e.g. 12722123 reads your number from a Telstra line, 12723123 reads your number for an Optus line) (length varies), dial 12722199 then hang up and the call is returned by the exchange (used to test handset functionality) 1282 – Call information service 128xx – Call information service 13 xx xx and 1300 xxx xxx – "Local Rate" calls, except for VoIP and mobile phone users 1345 xxxx – Local rate calls (only used for back-to-base monitored alarm systems) 14xx – Carrier override prefixes (e.g. 1411 is the override prefix for the Telstra network; see below for details) 180 xxxx and 1800 xxx xxx – FreeCall 183x – Caller identification override prefixes (1831 blocks caller-id sending while 1832 unblocks caller-id sending) 188 xxxx – Premium SMS (since moved to 19 range) 189 xx – Calling card service 19 xx xx and 19xx xxxx – Premium SMS 190x xxx xxx – Premium rate services (usually 1902 and 1900) Some notes: These numbers do not have a Trunk Access Code prefix (0). The 106 number is believed to be the first nationwide TTY emergency service in the world. 13 xx xx, 1300 xxx xxx and 1800 xxx xxx numbers can provide source-based routing, used by organisations such as pizza chains that advertise one number nationwide that connects customers to their nearest store. Virtually all FreeCall numbers in use are 1800 xxx xxx, though some organisations do use the shorter 7-digit version. Some of these numbers are dialable from locations outside Australia. It is up to the individual owner to set this up correctly (for 13 and 18 numbers at least) (e.g. +61 13x xxx) 911 will not re-route to triple zero as the prefix 911x has been allocated to landlines under the current numbering plan. 911 may redirect to 000 when using a mobile phone, like 112, but it is not encouraged as knowledge of these numbers causes confusion Emergency services numbers (000, 106, 112) 000 is the primary emergency telephone number in Australia. Secondary emergency numbers are 106 (for use by the hearing impaired with a TTY terminal) and the international GSM mobile emergency telephone number 112. Increased awareness