Weird Ph no. o.O" (1 Viewer)

[expertdkx]

i went to a field trip ' People & Place tour ' at Sydney around Pymont and Ultimo walk-about including the CSR factory
however we come across an extremely weird ph no. thats starts off 660 im just wondering what yr did the ph no. existed and when it start to have that type of ph. no and which yr did it end?
as now days we use ph. no recognisable that starts off either 8 or a 9 or is it the ph no. still existed today?

 

[dat202hoe]

Did the phone number have seven digits? They added the nine to our numbers recently, like within the past twelve-fifteen years I'd estimate.

 

[Aaron.Judd]

I done the same tour, although don't remember seeing that phone number or have any idea of its period of use.