NSString * MOBILE = @"^(13[0-9]|14[579]|15[0-3,5-9]|16[6]|17[0135678]|18[0-9]|19[89])\\d{8}$";
NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
if ([regextestmobile evaluateWithObject:mobileNum] == YES)
{ return YES; } else { return NO; }}