That’s a wonderfully weird collection. I note they drop in a couple of UK 0891 numbers there as well…
I used to work for a certain telecom monopoly in the UK around 1987. Lots of chatlines advertised in newspapers and magazines. Working in the exchanges, we had handsets that could be plugged into circuits in the old electromechanical Strowger racks.
The chatlines were all moderated - you might have around 10 people with one moderator, there to cut people off if they were using bad language etc. Unmuting my handset and dropping a few random comments in used to drive the mods nuts - they got so confused trying to figure out where this extra person had come from 
. Oh to be 19 again…
Serves them right though, lots of teens getting grounded when the bills came in - they tended to be seriously expensive.
Oh my now I’ve gone down a rabbit hole…:
“What makes people all over America break down and cry like this?”
Their phone bill of course you scamming arsehole!
ETA: Good lord, the BT chatlines got raised in the House of Commons in 1988:
https://api.parliament.uk/historic-hansard/commons/1988/feb/09/telephone-talkabout-service
"British Telecom has created a monster which, like a time bomb, is ticking away in thousands of homes of unsuspecting parents. Very few parents today can be certain beyond reasonable doubt that they will not be blasted by the shock waves of an astronomical phone bill.
It is not good enough for British Telecom to refer to parental control. Talkabout is addictive and parents are not at home all the time. Parental control moves into action, but only when what has happened comes to their knowledge on receipt of a telephone bill which in some cases may exceed £1,000. I have even heard of a phone bill of more than £2,000 for a quarter as against the average of about £40, and these parents are very shocked indeed."
Sounds like kids these days buying DLC on their parents accounts… Plus ça change , plus c’est la même chose
