St. Petersburg is a city with a rich history, and its telephone numbering is a direct reflection of this history. When you see an incoming call with a prefix on your phone screen 812 or +7 812, this means that the caller is located in the Northern capital or Leningrad region. Understanding the structure of telephone numbers is necessary not only to know where the call came from, but also to correctly calculate the cost of a call, as well as to protect against fraudulent schemes.
In the era of widespread use of mobile phones, many users forget how to dial a number correctly if they are in another region. Digital code 812 is a unique identifier of St. Petersburg in the international and national communication system. It is assigned to both landline lines and city SIM cards. Knowing the nuances of dialing this code helps you avoid unnecessary expenses for long-distance communications and correctly identify the subscriber.
In this article we will analyze in detail what is hidden behind these three numbers, how numbering has evolved in the city on the Neva and what changes await subscribers in the near future. We will look at the technical aspects, legal regulations and practical tips for using telephone communications in one of the largest metropolitan areas in the country.
Historical background and meaning of code 812
Code 812 St. Petersburg inherited it from the Soviet numbering system. In the USSR, Leningrad was the second most important city in the country, and was assigned a code immediately after Moscow (code 095, then 495). Telephone code served as a marker of the city's importance in the state hierarchy. After the collapse of the Union and a change in the numbering format in Russia, when the number 8 was added to city codes for long-distance communication within the country, the code was transformed into the form we are familiar with.
It is important to understand the difference between country code, area code and operator code. Russia uses the code +7, which divides the numbering between Russia and Kazakhstan. This is followed by a three-digit region code. For Moscow it is 495, 499, 9XX, and for St. Petersburg it is 812. Code 812 is the only code for the entire St. Petersburg and Leningrad region, which makes this region unique in terms of telephone numbering, since other large areas often use zoning.
Over time, the resource of old codes began to deplete due to the growth in the number of subscribers and the emergence of new communication services. This led to the need to introduce additional codes. However, the historical code 812 remains the main symbol of the city in the telephone space. It is assigned to thousands of organizations, government agencies and individuals, creating a kind of “digital map” of the city.
Keep the emergency number of St. Petersburg in quick access, even if you have a mobile connection, as landline lines sometimes work more reliably during power outages.
How to dial a number correctly from a mobile and landline
Dialing rules depend on which telephone network you are using and where you are at the moment. With the development of mobile communications, the boundaries between local and long-distance calls are blurred, but the technical features of dialing the code 812 still matter. If you are calling from a mobile phone anywhere in Russia, you need to dial the number in international format.
The standard format for dialing from a mobile device is as follows: +7 812 XXX-XX-XX. Using the "+" symbol automatically replaces the international call code (in Russia it is 8 or 10), which is especially convenient when roaming abroad. If you are inside St. Petersburg and calling from a mobile phone, many operators allow you to dial a number without an area code, but use the full format guarantees connection.
The situation with landline phones is more complicated. If you are calling from a landline within St. Petersburg, dial 812 no need. Simply enter the seven-digit subscriber number. However, if you use a landline phone in another city in Russia, the algorithm changes. You will need to make long-distance calls.
To make a call from a landline phone from another region of Russia, the algorithm of actions is as follows:
- 📞 Dial number 8 (access to long-distance communication).
- 📞 Wait for the beep or immediately dial code 812.
- 📞 Enter the seven-digit subscriber number.
- 📞 Full format:
8 812 XXX-XX-XX.
When calling from abroad, always use the +7 812 format, as direct dialing via 8 from abroad does not work.
New codes of St. Petersburg: 813 and others
The telephone numbering resource is not infinite. Code 812, being three-digit, allows you to generate a limited number of unique numbers. With population growth and increasing telephony density in St. Petersburg and the Leningrad region, an urgent need arose to expand the pool of available numbers. In this regard, it was decided to introduce new codes.
The main “neighbor” of the historical code was the code 813. Initially, it was used primarily for the Leningrad region, but with the development of mobile communications and network convergence, the boundaries were erased. Now a subscriber with code 813 can be physically located in the center of St. Petersburg, and the owner of 812 can be in the suburbs. This creates confusion, but technically there is no difference for the subscriber: tariffs within the region are usually the same.
In addition, in mobile communications, codes starting with 9 are actively used, which formally belong to the federal code, but are assigned to the region. For example, codes 921, 911, 981 are massively owned by operators operating in St. Petersburg. Virtual operators (MVNOs) can also use any available number pools, which makes locating a subscriber by code increasingly less accurate.
Below is a table of the distribution of the main codes associated with the region:
| Code | Communication type | Geography | Status |
|---|---|---|---|
| 812 | Stationary, Mobile | St. Petersburg and Leningrad region | Main |
| 813 | Stationary, Mobile | LO and St. Petersburg | Additional |
| 921 | Mobile | St. Petersburg and Leningrad region | Active |
| 981 | Mobile | St. Petersburg and Leningrad region | Active |
Tariffing and cost of calls
The issue of the cost of calls to numbers with the 812 code remains relevant, especially for those who often contact St. Petersburg counterparties or relatives. In most modern tariff plans of mobile operators, the concept of “long-distance communication” within Russia has been abolished. This means that a call to the number +7 812 is charged the same as a call to any other Russian number included in your package of minutes.
However, there are nuances. If you are calling from a landline phone, tariffs may vary. Long-distance calls from city to city to another region are paid at separate rates, which can be per minute. Mobile communications In this regard, it wins by offering a single minute throughout the country. But you should be careful with corporate tariffs and older plans, where the “Home Region” and “Russia” zones may be separated.
When roaming abroad, incoming calls to your number (regardless of the code) are usually paid, and outgoing calls to 812 numbers will be charged as an international call to Russia. In this case, the cost per minute can be significant. It is recommended to use Internet calls via Wi-Fito avoid unexpected expenses.
⚠️ Attention: Tariff plans of telecom operators may change. Before making a large number of long-distance calls from a landline phone or from roaming, be sure to check the current tariffs in your personal account or with the support service of your operator.
How to save on calls to St. Petersburg?
Use instant messengers (WhatsApp, Viber, Telegram) for voice calls if you and the other person have access to the Internet. This will completely eliminate voice communication costs, regardless of the area code.
Security: how to recognize scammers
Unfortunately, the popularity of the 812 code attracts not only business partners, but also telephone scammers. Attackers often use number substitution technologies (spoofing) so that the number of a bank or government agency with the code of St. Petersburg is displayed on the victim’s screen. This is done to increase trust, since federal numbers are often ignored, and city numbers appear more "official" or "local" to residents of the North West.
If you receive a call from number 812 and the interlocutor introduces himself as a security officer from a bank, police or social services, be vigilant. Never Do not share SMS codes, card PIN codes or Internet banking passwords. Official organizations never ask for this information over the phone. Even if the caller ID shows a real establishment, scammers can exploit vulnerabilities in telephone networks.
The main signs of a fraudulent call:
- 🚨 Urgency and pressure: You are being rushed to make a decision right now.
- 🚨 Request for confidential data: they ask you to name the code from SMS or the full amount on the card.
- 🚨 Strange logic: they offer to “transfer money to a secure account.”
- 🚨 Using a robot: an automatic voice asks you to press a button or confirm an action.
If you do not live in St. Petersburg, and calls with the 812 code are constantly received and are of an advertising or suspicious nature, it makes sense to install caller ID or a blocking application. Many modern smartphones have built-in databases of spam numbers that flag such calls.
☑️ What to do if you receive a suspicious call
Technical features and transition to seven-digit numbering
The telecommunications infrastructure of St. Petersburg is constantly being modernized. One of the important stages was the discussion and partial implementation of the transition to seven-digit numbering for mobile numbers, although for landline networks the code 812 remains a mandatory element of the network address. This is because the capacity of the three-digit code (812) combined with the seven-digit subscriber number is approaching its theoretical limit.
The introduction of the 813 code and the active use of mobile communication codes (9xx) made it possible to postpone radical reforms for the time being. However, users should be prepared for the fact that in the future the dialing format may change, as has already happened in Moscow and some other million-plus regions, where it was necessary to dial the area code even when calling from a mobile within the network of one operator.
For businesses, having a number with the 812 code is a matter of prestige and trust. A local number signals to clients that the company is based in St. Petersburg, has an office and is ready for face-to-face interaction. Virtual PBXs allow you to rent such numbers even for those organizations whose employees work remotely, redirecting calls to any mobile device.
⚠️ Attention: When setting up answering machines and voice response (IVR), be sure to indicate the number in full format with code 812 so that clients from other regions can easily terminate you.
Frequently asked questions (FAQ)
Is it possible to call 812 for free?
Only incoming calls are free if you have an appropriate tariff plan. Outgoing calls to 812 numbers are charged according to your tariff (usually as package minutes or at the base rate). Calls to short service numbers 812 may be chargeable.
What is the difference between codes 812 and 813?
There is no technical difference for the subscriber. Both codes serve St. Petersburg and the Leningrad region. Code 812 is historical and basic; 813 was introduced as an additional code to expand the numbering capacity. A call between these codes is considered local.
How to identify an operator by number 812?
Code 812 is a geographic area code, not a carrier code. It can belong to any fixed-line operator (Rostelecom, MGTS in rare cases of transfer, etc.) or be used for mobile numbers assigned to a region. The exact operator can only be found through special services or databases.
What to do if number 812 is blocked?
If your landline number stops working, you need to contact the technical support of your provider (usually Rostelecom in St. Petersburg). If you cannot reach the hotline, try using your personal account on the operator’s website or visiting the sales office.
Is it possible to transfer an 812 number to another operator?
Yes, in Russia there is a law on number portability (MNP). You can keep your landline number when changing your fixed-line operator, or even transfer it to the mobile network if the operator provides such a service for your region.