In the United States, there is no "up" from a 4.0 GPA. (Er… well… wait a minute… now that I think of it, there actually are some colleges/universities with five and six point grading systems in the US, but they’re darned rare. A 4.0 GPA, pretty much everywhere in the US, is perfection.)

And in the United States, the words "college" and "university" are tossed around almost interchangeably unless the university in question is modeled after an older-fashioned or European standard wherein a university is made-up of numerous colleges… like the University of London, for example, just to name one of many with that particular construct.

But even then, in the US, college is not something one does first, and then university… at least not as you’ve asked about it.

In the US, local community or junior colleges which are two years in duration and which award "associate" (AA or AS) degrees are stair steps to four-year "bachelors" (BA or BS) degrees; and in such cases, the two-year AA or AS degree may be treated by the four-year BA or BS program as the first two (freshman and sophomore) years of said BA or BS program, allowing the student to enter said BA or BS program as a junior and then only do two more years to achieve his/her bachelors (BA or BS) degree. And when said BA or BS degree is at a "university" then I suppose one could say that the community or junior "college," in that case, was a stair step to the university.

But that’s not really how things are structured in the US. Four-year programs are also available at "colleges" in the US, just as they are at "universities." In that case, the college calls itself a college, rather than a university, sometimes simply because it’s very small.

Some states in the US do, buy statute, define "college" versus "university;" and when so, it’s usually structured like I earlier mentioned wherein the overarching or umbrella entity is the university, and within said university is a "College of Whatever" and a "College of This" and then a "College of That" and then a "College of That, Too", etc. But four-year degrees come from them all.

So, in the US, "college" is typically not a stepping stone to "university"… at least that’s not how those terms are intended to be used… at least not in the US.

In the US, the lowest-level degree one can get is the two-year "associates" degree. Then, above that, is the four-year "bachelors" degree (the first two years of which can often be fulfilled by the two-year "associates" degree.

In the US, one cannot skip the first two years of the four-year bachelors degree. Or, if those first two years happen to be in the form of an "associates" degree, then one cannot skip an "associates" degree (which is often earned at a community or junior "college," but can also be earned at a four-year university), and so it can also be said that one cannot, under THAT construct, skip "college."

A bachelors is (at least in the US) four years long. Period. Said like someone who DIDN’T go to either college OR university: There ain’t no way around it!

There’s no skipping.

However, it is possible to test-out of most or all of the first two years of college/university.

See: http://www.collegeboard.com/student/testing/clep/about.html
See: http://www.dantes.doded.mil/dantes_web/examinations/dsst.htm

And here;s a web site where you can learn how to get an entire bachelors degree via exams… in other words, effectively "test out" of an entire college degree:

http://www.bain4weeks.com

And it’s legit… not a degree mill or diploma mill. That web site actually tells you how to get a complete four-year, reginally-accredited bachelors degree strictly/entirely via testing/exams such as CLEP and DSST (and a few others). No kidding.

The web site talks about how it can be done in four weeks, but forget about that. That part’s theoretical (though it has now actually been done). It’s just trying to make the point that it’s technically posslble to do it all in four weeks. No one ever does, though. For some it takes a year or two… others take the whole four years, or longer. So the truly salient part of what’s on that BA in Four Weeks site isn’t the four weeks part. It’s the exams part, and which ones to choose, and how to prepare for them. Do what that web sites says regarding THAT, and it’s actually possible to get a regionally-accredited bachelors degree entirely by testing/exams, and attending no classes.

Something like that would be about as close to "skipping" anything as you’d be allowed to do… at least in the US.

Also, be aware: Some colleges don’t accept CLEP or DSST (Dantes) exams at all; and others severely limit how many hours may be earned by that method. So consult the handbook or catalog of the college/university you’re considering and see what are its policies regarding testing-out of coursework.

So, bottom line: In the US, one finishes High School (or gets a GED), and then,

one goes straight into a four-year BA or BS program; or,

one goes into a school which awards BA/BS programs, but gets an associates (AA or AS) there first, then goes on into the school’s BS or BS program (entering as a junior) and then does just two more years to get a BA or BS; or,

one goes into a two-year community or junior college and gets an AA or AS there, and then goes on into a four-year BA or BS program (entering same as a junior) and does just two more years there to get a BA or BS.

But no matter how you slice it, after high school, it’s two years for an AA or AS and then two more years for a BA or BS; or its four straight years for a BA or BS.

No "skipping."

Now, if you’re talking about some country other than the US, then all bets are off… though most countries which have a culture of educational accountability like the US has, and which also has an accreditation or quality assurance framework like the US has, pretty much don’t allow "skipping" either.

Hope that helps.
References :

There are many online websites that offer you a list of colleges and universities, but most of them are paid.
Here is one website that offer you to browse schools around the world for absolutely free .
Just complete their questions and they will accept you.

Enter http://TopEducationFinder.info

I really hope this will help you
References :

In the US college and university are the same. If you are not in the US you need to state what level of education you have completed to get the right information.
References :