Pretty Little Liars (no spoiler tags)

Where did you get those numbers?

I tried googling the numbers, lol. That was a bust.

This is now gonna annoy me.

C.GCB. ? lol!

Are you finding anything about the numbers Rosie? I can't find shit about it....

Gonna make a post about it and see if anyone out there thinks of something.

The numbers i posted are the spaced between the shower numbers... it means nothing to me.

Wouldn't it be annoying if he was just messing with people.

I'd think the Error number is more significant.... Maybe something from a previous episode?

He'd be troll of the year!

307320 = 15.

Ali was 15 when she died.

1+5 = 6

6 A team members? 5 black hoodies (as we have been shown), and one red coat?

Possibly Good pick up.

Lol, I'm just grasping at straws.

This is probably it though:
Pretty Little Liars ‏@AllThingsPLL
@AndyReaser Actually 307 AND 320, both episodes you've written