you would have to be at the end of route 25 between 4 and 6 pm after you have beaten or caught suicune. talk to her and naturally she will ask if you want her number. she can then be rematched on wednsday mornings.
In Kanto's Cerulean city
no
you can just battle people and they might give you there phone number
Yes.
you'll get lt surge phone number at the power plant but put pikachu in your team first
go to diglet`s cave (pewter city side)
She's on the 6th floor of the Goldenrod Department store.
morty is on the bellchime trail on Tuesday but he might be there on other days
You must speak to daisy,his sister after getting 7 groomings from her to get blues phone number
In HeartGold and SoulSilver you can register all the phone numbers!
you tickle mistys feet with a feather until she tells you
you go to the power plant talk to everybody there go to mistys gym after that and there will be a man in black there beat him in a battle and then go to the side of house there you will see misty.