Seeing a car on the road with a non-standard area code or hearing an abbreviation RSO In the conversations of car owners, many wonder about the origin of these symbols. Confusion often arises due to the similarity of sound and spelling, because RSO in the context of license plates is directly associated with 150 region Russia, which is assigned to the Moscow region. This is one of the most common and recognizable codes, which can be found not only in the Moscow region, but also far beyond its borders due to transport migration.
It is important to understand that the abbreviation RSO often used as a synonym or phonetic designation specifically 150th region, although technically we see numbers on the license plates themselves. Code 150 was introduced in 2013 to relieve the overcrowded 50th region, and since then it has become a symbol of mass motorism in the central part of the country. Anyone who is planning to buy a car or is interested in automotive numerology needs to understand the nuances of assignment and the features of this code.
Decoding the abbreviation and origin of the code
Many people mistakenly believe that RSO - This is the official abbreviation stamped on the metal of the number, but this is not true. In official documents of the traffic police and on the registration plates themselves, only digital designations are used. Title RSO (or RSO) has become entrenched in everyday life as a phonetic transcription of the phrase “Region One Hundred and One” or simply as a distorted perception of the numbers 1-5-0, where the letter “R” can be associated with “Region” or “Russia”, and “SO” with the numbers 5 and 0. However, in a professional environment and among outbid buyers RSO most often understood precisely Moscow region with code 150.
The history of the appearance of this code is directly related to the demographic explosion and the sharp increase in the number of vehicles in the Moscow region. Until 2013, the bulk of cars in the region were driven by numbers with a code 50. When the free combinations in this region came to an end, it was decided to introduce an additional code. This is how it appeared 150 region, which effectively became a second code for the same geographic area as 50th.
- 🚗 Code 150 is assigned to vehicles registered in the Moscow region.
- 📜 The official entry into force of the new license plates occurred in mid-2013.
- 🔄 RSO often confused with code 190, which also refers to the Moscow region, but is the third in a row.
- 📍 Geographically, the coverage area completely coincides with the borders of the Moscow region.
It is worth noting that confusion in names may also arise due to similarity with the code 15, which belongs to the Republic of North Ossetia-Alania (city of Vladikavkaz). However RSO in the context of the mass automobile industry and metropolitan traffic, this is almost always about the Moscow region. Understanding this difference is important when checking a car’s history, since regions have different statistics on thefts, accidents and specifics of operation.
⚠️ Attention: When purchasing a car with code 150 or 50, be sure to check that the VIN code matches the registration region. Frequent changes of regions by the owner may indicate an increase in mileage or an attempt to hide the history of an accident in the capital region.
Geography of distribution: cities and regions
Region code 150, which is often searched for under the name RSO covers the entire territory of the Moscow region. This means that a car with such license plates can be registered both in large satellite cities, such as Khimki or Mytishchi, and in remote areas, for example, in Mozhaisk or Serebryanye Prudy. There is no connection to a specific city within the region; numbers are distributed according to a general queue within the region.
Due to the high population density and the huge number of cars, numbers with code 150 can be found almost anywhere in Russia. Migration of the population and work of region residents in Moscow lead to the fact that such cars are actively moving. RSO (region 150) has become a kind of marker of pendulum migration, when the owner lives in the region and works in the capital.
For clarity, let's look at the main cities where the concentration of cars with code 150 is the highest. Statistics show that the leaders are cities located closer to the Moscow Ring Road, as well as large industrial centers.
| City/District | Traffic Features | Popularity code 150 |
|---|---|---|
| Khimki | High congestion, proximity to the airport | Very high |
| Balashikha | The largest city in the region, a transit hub | High |
| Podolsk | Industrial center, south direction | Average |
| Odintsovo | Western direction, luxury housing | High |
| Mytishchi | Northeast, dense buildings | Very high |
It is important to consider that with the introduction of new codes (750, 790, 799), new registrations in old codes, including 150, are carried out less frequently, mainly to preserve the number when changing ownership or restoring lost signs. Therefore, meet "fresh" RSO (150) on a new car from the showroom is now more difficult than a few years ago.
If you are purchasing a code 150 vehicle from another city, check for registration restrictions. Often cars from the Moscow region are pledged to banks.
History of appearance and evolution of numbering
The appearance of the code 150 became an inevitable step for the traffic police. By the beginning of the 2010s, a resource of two-digit codes for the Moscow region (50) was almost exhausted. Combinations of letters and numbers were running out at an alarming rate. The introduction of a three-digit code made it possible to increase the capacity of the number pool tens of times, which made it possible to continue registering new vehicles.
First numbers with code 150 began issuing in August 2013. This event became significant for motorists, as it marked the transition to a new stage of numbering. Until this moment 50th region was considered one of the most prestigious and widespread. Introduction 150 did not cancel the old code, they began to exist in parallel, which created a unique situation when one subject of the federation has two main codes.
- 📅 2013 - the beginning of issuing numbers with code 150.
- 🚦 2015 - introduction of code 190 (third code for the region).
- 🆔 2019 - start of issuing codes 750, 790, 799, 797, 777.
- 📉 2020s - a gradual decrease in the frequency of issuing “old” three-digit codes in favor of new series.
The evolution of numbering did not stop at 150. Following him appeared 190, 750, 790, 799 and others. Each new code was introduced as the previous one was exhausted. However, it is 150 entrenched in consciousness as the “second” and most widespread after the classical 50. Now searching for combinations with code 150 is being carried out more actively, since they are perceived as more “classical” compared to the new three-digit codes starting with 7 and 9.
⚠️ Attention: When ordering a “beautiful” number with code 150, remember that the state duty for saving the combination of numbers can be significantly higher than the standard one. Official tariffs are set by the government, but the resale market dictates its prices.
Why three numbers?
Three-digit area codes were introduced to increase the number of possible combinations. If a two-digit code gives 1 million combinations (theoretically), then a three-digit code increases this pool to 10 million, which is critical for densely populated regions.
Differences between code 150 and other Moscow region regions
The Moscow region is unique in that it has the largest number of region codes in Russia. Besides 50 and 150 (often called RSO), codes apply here 90, 190, 750, 790, 799, 777, 977, 999 (partially). It’s not easy to understand them, but the key difference is 150 lies in the period of its active use and perception on the road.
Code 50 considered the "old guard" 150 - the “golden mean” of the 2010s, and the codes of the series 7xx and 9xx - modernity. Cars with license plates 150 often range in age from 3 to 10 years, making them major road users. While on new cars you can more often find 799 or 777.
From the point of view of legislation and fines, there is no difference between the codes. Cameras record the violation, and the owner receives a fine regardless of whether 150 he has a region or 50. However, among car enthusiasts there is an unspoken hierarchy, where 50 and 150 are valued higher because of their “readability” and familiarity.
A comparison table will help you understand the difference in periods of active issuance:
| Region code | Status | Active issuance period |
|---|---|---|
| 50 | Active (limited) | 1993 – 2013 |
| 150 | Active (limited) | 2013 – 2015/2017 |
| 190 | Active (limited) | 2015 – 2019 |
| 750/790 | Active | 2019–present |
Thus, RSO (150) is a bridge between the old and new eras of automobile numbering in the Moscow region. Owners of such license plates are often proud that their car does not belong to the “new” series, but is not an ancient artifact of the 90s.
All codes of the Moscow region (50, 90, 150, 190 and new series) are legally equivalent and give the right to unimpeded entry into Moscow, unlike some other regions with restrictions.
Checking a vehicle by region code RSO
When purchasing a car with a code 150 (RSO) verification procedure is no different from the standard one. However, the high concentration of cars in this region imposes its own characteristics. Statistically, there are a lot of cars from the Moscow region with a long mileage or a complex history of use (for example, working in a taxi or car sharing).
The first thing to do is check the VIN code through official traffic police resources or commercial services. Pay attention to the frequency of ownership changes. For region 150 2-3 owners in 5-7 years are considered normal. If a car changed owners every six months, this red flag.
- 🔍 Check for restrictions on registration actions (often due to fines from cameras).
- 🚔 Make sure that the car is not listed as stolen or is not used as a wanted vehicle.
- 📉 Check your mileage history: the Moscow region is characterized by high daily mileage.
- 🚕 Avoid working in a taxi: many cars are from 150 regions were used in aggregators.
Particular attention should be paid to the technical condition. The climate and roads of the Moscow region contribute to rapid wear of the suspension and body (due to reagents). Car with code 150, which has been actively used, may hide serious defects masked by pre-sale preparation.
☑️ Checking cars from region 150
Frequently asked questions (FAQ)
Is it possible to get a number with code 150 now?
Get a new number with code 150 during the initial registration of a car it is almost impossible, since this number of numbers is considered exhausted. The issuance is mainly for new codes (799, 777, 977). However you can get 150, if you keep your old number when changing cars or buy a car with an existing number for this region.
Is there a difference between codes 50 and 150 for entering Moscow?
No, there's no difference. Both codes belong to the Moscow region and are part of the unified system of the transport region of Moscow and the region. Restrictions on entry into the Moscow Ring Road for cars with codes 50 and 150 does not exist, unlike cars with other region codes, which may be subject to environmental restrictions or parking bans.
Why is code 150 sometimes called RSO?
Title RSO is not official. This is popular or professional slang that may have originated as a corruption of the numbers 1-5-0 or as an abbreviation. Always use numbers in official documents 150to avoid misunderstandings with traffic police officers.
How many codes does the Moscow region have?
At the moment, the Moscow region is the leader in the number of region codes. There are already more than ten of them: 50, 90, 150, 190, 750, 790, 799, 777, 977, 999, 797. This is due to the huge number of registered vehicles, exceeding the capabilities of standard two- and three-digit numbering.
Does code 150 affect the cost of compulsory motor liability insurance?
The region code on the policy form itself does not affect the price. The cost of compulsory motor insurance is calculated based on the region of registration of the owner (territory coefficient), and not the region of registration of the car. Therefore, a car with a number 150 for an owner from Moscow it will cost the same as a car with number 777, if the owner’s registration is in Moscow.