Why won't my iPhone activate my number on iMessaging?

Last night my screen wouldnt come back on. This has happened to me before, not a big deal. I just had to restore my phone. Well I couldn't restore it with out turning off the "Where's my iPhone" thing and with no screen I couldn't do that. So I had to erase my phone from icloud.com and then restore the backup from there. Well everything on my phone is back, BUT my iMessaging and Facetime won't connect through my phone number. Only my email. I have tried turning it on and off, signing out and signing back in, etc. But it still can't activate with my phone number. Is there anything I can do that will make it work?

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