More likely just comparing notes , when a prolific punter such as TCM books on Adultwork they can see which other girls have left feedback, if it's someone they know they may have a chat about him. In this case TCM has booked by phone, since she has obviously heard of this report she is most probably sending the other girl the number to see if she knows him.
That would be my guess anyway.
Id agree,
possible scenarios
Hi (girls name) Can you put this number in your phone under the name "top shagger"

Hi (girls name) Can you put this number in your phone under the name "cock too big"

Hi (girls name) Can you put this number in your phone under the name "small cock tickle tickle"

Hi (girls name) Can you put this number in your phone under the name "generous fucker"

Hi (girls name) Can you put this number in your phone under the name "tight fucker"

Hi (girls name) Can you put this number in your phone under the name "fluffy fucker"

OR EVEN
Hi (girls name) Can you put this number in your phone under the name
"experienced punter who doesnt like girls who cant be bothered to give the service they charge for and reviews about em which pisses em off so they make silly calls to friends but even fuck that up" 
Nah, I dont see any of them applying to you TCM so I think defo
Can you put this number in your phone and see if you have any info on him .....but you got cut off as she realised she was talkin to your number after searching it out to read out to other girl..
Thick as fuck,
for the want of some service the war was lost