This is what happens when a state runs out of license plate numbers with California set to face unique dilemma
Published on Sep 22, 2025 at 9:00 AM (UTC+4)
by Molly Davidson
Last updated on Sep 22, 2025 at 10:31 AM (UTC+4)
Edited by
Kate Bain
License plate numbers seem endless. Seven characters, infinite combos, right? Well, as it turns out, not quite.
Some states have already maxed out their systems, running through every possible combo.
Arizona hit the wall back in 2008 when its six-digit format ran dry.
Now California is about to face the same crunch, only this time it’s on a far bigger scale.
DISCOVER SBX CARS – The global premium auction platform powered by Supercar Blondie
What actually happens when license plate numbers dry up
The story starts way back.
New York drivers were the first to slap plates on their cars in 1901, though they literally made them at home with their initials.
Two years later Massachusetts standardized things, issuing the first state plate with just a single number: 1.
Fast-forward a century and a bit, and every state has its own method for arranging letters and numbers.

Some link codes to counties, some to vehicle class.
But here’s the catch: once a plate has been issued, it’s rarely ever recycled.
Even if a car is scrapped, that code retires with it.
So while seven characters sound infinite, the math eventually tightens.
Arizona ran the table on its six-character format by 2008.
To avoid chaos, it bolted on a seventh character.
This instantly ballooned the pool to more than 100 million possibilities.
That bought decades of breathing room.

California can’t use the same trick.
It already runs a seven-character setup, launched in 1980 with 1AAA000.
By the end of 2025, the DMV expects to hit the final code in that sequence: 9ZZZ999.
But not to worry. Once California hits the end of the line there is a plan in place.
The DMV will flip to a brand-new sequence – 000AAA0 – a reset that unlocks millions more combos and should keep plates flowing for the next hundred years.
Why California ran out quicker than expected
Sure, more people means more cars, but that’s only half the story.
California’s DMV says trade policy also played a role.
During the Trump administration, tariffs spooked buyers into grabbing new cars early, worried that sticker prices were about to jump.
More sales meant more registrations. And that meant plates burned faster than projections.

Now the state is banking on its new sequencing format to last until the next generation of drivers is long gone.
It’s a temporary fix, but a fix all the same.
Running out of numbers sounds like a dystopian DMV nightmare.
But California’s shuffle shows there’s always another combination waiting, even if it takes a little creative rearranging to find it.
DISCOVER SBX CARS: The global premium car auction platform powered by Supercar Blondie
Molly Davidson is a Junior Content Writer at Supercar Blondie. Based in Melbourne, she holds a double Bachelor’s degree in Arts/Law from Swinburne University and a Master’s of Writing and Publishing from RMIT. Molly has contributed to a range of magazines and journals, developing a strong interest in lifestyle and car news content. When she’s not writing, she’s spending quality time with her rescue English staffy, Boof.