The question of how many combinations of car numbers can be created within the framework of current legislation often arises among car enthusiasts interested in statistics, or among those who dream of a rare “thieves” badge. The mathematics of automobile registration plates (AMR) is not just dry numbers, but a complex system that depends on the number of letters, numbers and regional codes. Understanding this structure allows you to understand the scale of the transport registration system in the country.
At first glance, it may seem that there are infinitely many options, but the strict rules of GOST R 50577-2020 set strict limits. Number format is strictly regulated, and any deviation invalidates the mark. In this article we will look at how exactly the number of possible combinations is calculated and why some series are valued by collectors above others.
The modern numbering system balances the need for uniqueness for each vehicle with the limited number of characters available. Vehicle number is the main identifier of the vehicle, and its structure must ensure unambiguous recognition. Let's dive into the details of the calculation.
Standard format and symbols used
The basis for calculating the number of combinations is the current state standard. In Russia, regular passenger cars use a format consisting of three letters, three numbers and a region code. However, not all letters of the alphabet have the right to appear on a license plate. To ensure readability and compatibility with international databases, it is allowed to use only 12 letters of the Cyrillic alphabet, which have graphic analogues in the Latin alphabet.
These letters include: A, B, E, K, M, N, O, R, S, T, U, X. The use of other letters is prohibited as they may be misinterpreted by automatic recognition systems (cameras) or police officers in other countries. Character set strictly limited to this list of a dozen characters.
The digital part of the number is more predictable and includes a standard set from 0 to 9. However, in the standard format “001 AA 777” the digital combination cannot start from zero (for example, 012 is unacceptable, but 102 is acceptable). This important limitation reduces the total number of possible number sequences. Registration plate must be read unambiguously, so leading zeros in the numeric part are prohibited.
Thus, for the mathematical calculation we operate with the following input data:
- 🔢 Number of available numbers: 10 (from 0 to 9).
- 🔤 Number of available letters: 12 (A, B, E, K, M, N, O, R, S, T, U, X).
- 🚗 Format: Letter-Letter-Letter + Number-Number-Number (the order may vary depending on the type of vehicle, but the set of characters is the same).
⚠️ Attention: The use of letters that are not included in the permitted list (for example, Zh, Ts, Sh, , y) on standard numbers is impossible, even if visually they seem similar to other characters. Installing such signs is illegal.
Mathematical calculation of the number of episodes
To understand how many combinations of car numbers are theoretically possible, you need to multiply the number of options for each position. Let's consider the classic format for passenger cars: three numbers and three letters. The digital part consists of three characters. Since the first digit cannot be zero, we have 9 options for the first position and 10 for the second and third. Total: 9 × 10 × 10 = 900 number combinations.
The letter part also consists of three characters, and there are no restrictions on the first letter (except for the use of the permitted alphabet). For each of the three positions we have 12 options. The calculation looks like this: 12 × 12 × 12 = 1728 letter combinations. Total quantity options for one region is calculated by multiplying the digital and alphabetic series: 900 × 1728.
The result of this calculation shows the capacity of one region code series. This turns out to be 1,555,200 unique numbers. This number represents the theoretical maximum for one specific region (for example, only the 777 area code or only the 799 area code). However, the real picture is more complex due to the distribution of codes.
It is important to note that this calculation is relevant specifically for the standard format ### @@@. There are other formats, for example for motorcycles or trailers, where the number of characters is smaller, which consequently reduces the number of available combinations. The maximum possible number of unique numbers within one area code is 1,555,200 units.
Impact of area codes on total
Russia is a huge country, and one region code (two-digit or three-digit) for all cars is not enough. It is the region codes that allow you to multiply the total number of available rooms. Two-digit codes (from 01 to 99, with the exception of some reserved ones) give us less than 100 options. However, for densely populated areas such as Moscow, Krasnodar Territory or Tatarstan, three-digit codes are used.
Three-digit codes begin with the number 1 (for example, 101, 177, 199). Theoretically, there can be a hundred combinations from 100 to 199. But in practice, the Ministry of Internal Affairs of the Russian Federation assigns codes not in a row, but selectively, reserving ranges. Region code is a multiplier in our formula for the country's total room capacity.
There are currently dozens of different codes in circulation. If a region runs out of combinations, it is assigned a new code. For example, Moscow started with 77, then 99, 97, 177, 199, 777, 799, 797 were added. Each new code is another one and a half million potential numbers. Code distribution strictly controlled by government agencies.
The table below shows how the number of available numbers varies depending on the type of area code:
| Code type | Example | Number of code options | Capacity (numbers) |
|---|---|---|---|
| Two-digit | 01, 77, 99 | up to 99 | ~1.5 million per code |
| Three-digit (starts with 1) | 101, 177, 199 | up to 100 | ~1.5 million per code |
| Total per region | Sum of codes | Depends on area | Capacity multiplier |
⚠️ Attention: Area codes starting with a zero (for example, 001, 077) are not officially used in three-digit format. Three-digit codes always start with one.
Restrictions and “thieves” series
Despite the millionth values obtained in the calculations, the actual availability of rooms for an ordinary citizen is significantly lower. The fact is that a significant part of the beautiful and easy-to-remember combinations are reserved or distributed among government agencies. Special Series (so-called “thieves” numbers) often have repeating numbers or letters, or contain “round” numbers.
Such limited editions include combinations where:
- 🔒 All numbers are the same (111, 222, 777, etc.).
- 🔒 The numbers are in order (123, 567).
- 🔒 The letter part forms understandable abbreviations (AMP, OKO, FSB - although the latter are officially prohibited for issuance, the old ones can still be found).
- 🔒 There are mirror combinations of numbers and letters.
Often such numbers are inherited or sold along with the car at a price many times greater than the cost of the vehicle itself. Rarity of the series directly affects its market value. For example, a number with code 001 (which should formally be abolished, but is found on old cars or special equipment) or series with repeating elements are especially valued.
Why did the AMP and EKH series disappear?
The AMP (Moscow Region Cars) and EKH (I Eat As I Want) series were reserved for the administration and special services. After public scandals and changes in legislation, the issuance of new numbers with such letter combinations for civilians was stopped, and the existing ones are gradually being withdrawn from circulation.
It is also worth considering that some combinations may be excluded from circulation due to unreadability or similarity to existing intelligence signs. Therefore, when answering the question of how many combinations of car numbers are available “live”, you need to subtract the reserved fund from the theoretical maximum.
New number formats: type 1A and 1B
With the development of the automotive industry and the emergence of new standards, additional license plate formats were introduced in Russia, in particular for cars with non-standard mounting (Japanese, American cars) and motorcycles. Format 1A (square) and 1B (motorcycle) have a different structure, which changes the mathematics of the calculation.
For example, a motorcycle license plate has the format: two numbers, three letters, region code. Here the number of digits in the main part is reduced to two (from 10 to 99), which gives 90 options. The letters remain the same (12 cubed = 1728). Total: 90 × 1728 = 155,520 combinations per area code. This is 10 times less than standard cars.
For cars with square license plates (type 1A), the format has also been changed: three letters, two numbers. The calculation is similar to the motorcycle one: 1728 letter combinations per 90 digital ones. New formats were introduced to solve the problem of lack of space on narrow bumpers, but they significantly reduce the capacity of the number pool.
This means that for motorcycles and cars with square numbers, the shortage of beautiful series will occur much faster. Owners of such equipment should think about keeping the current number when selling, since the likelihood of getting the desired combination when re-registering is reduced.
When buying a motorcycle or Japanese car with a square number, check the history of the sign. Due to the smaller number of combinations, “beautiful” numbers are more common here simply by statistical probability, but their reservation is also more active.
Probability of receiving a rare number
What is the probability that when registering a new car or buying a used one, you will receive a license plate with the same numbers or letters? Mathematically, the number of combinations of the type “three identical numbers” (111, 222... 999) is only 9 pieces. Out of 900 possible number combinations, this is 1%. But if we also take into account the letter part, the probability drops to negligible values.
Obtaining a number where both numbers and letters are repeated (for example, 777 AAA) is almost impossible by chance. Statistical probability the occurrence of such a number tends to zero under conditions of random issuance. That is why such signs are subject to bargaining and cost a lot of money.
However, if the system for issuing license plates in your region is completely automated and random (which is being implemented in many MREOs), everyone has a formally equal, albeit meager, chance. But most often such numbers “pop up” during the re-registration of old cars that have been sitting in garages for decades.
☑️ How to increase your chances of getting a good number
FAQ: Frequently asked questions
Can I choose the combination of numbers and letters on the number myself?
There is no official paid service for choosing a specific combination of numbers and letters in the traffic police. You can keep your old plate when you sell your car or apply for a plate with a specific area code (if such an option is available in a particular department), but you cannot select specific numbers “777” or letters “AMP” with the snap of your fingers. All attempts to “agree” are corrupt and illegal.
What to do if all the numbers in the region have run out?
If a region runs out of combinations of the current code, the Ministry of Internal Affairs of the Russian Federation assigns a new three-digit code to the region, territory or republic. For example, Moscow was assigned codes 777, 799, 797 after the limits 77, 99, 97, 177, 199 were exhausted. The registration process does not stop, only the region prefix changes.
How many total area codes can be assigned?
Theoretically, it is possible to use codes from 01 to 99 (99 pieces) and from 100 to 199 (100 pieces) for three-digit ones. However, codes starting with 0 (001, 002) are not used. There are also reserved and canceled codes. The actual number of active codes is less than the theoretical maximum.
Why is there no letter “Y” on the numbers?
The letter "Yo" has been excluded from the list of approved letters for use in the AMR, as it is often written as “E”, which creates confusion during automatic recognition and visual inspection. The standard allows only 12 letters that have clear analogues in the Latin alphabet.
The total number of number combinations in Russia is in the tens of millions, but “beautiful” and rare series make up less than 1% of this volume, making them a valuable asset.