Articles
- Universal communication services: what they are and who pays
- How to cut your SMS spending
- Who calls from 8-800 and why the call is free
- How to identify the operator by phone number: three reliable ways
- 9xx codes: who owns Russia's mobile prefixes
- Why Russian numbers start with 8 and how it differs from +7
- Russian area codes: table and dialing rules
- Short numbers: how SMS to four-digit codes works
- Sending money by phone number: how it works and where the risks are
- Codes 800, 803, 804, 809: what they are and who pays
- How to find a city by its phone code
- How to check a number for spam and avoid scams
- How to read an international phone number
- Hidden and spoofed numbers: why caller ID can lie
- SMS from your bank: how to tell a real message from a fake one
- Codes 958, 977, 999: whose are they and why they appeared
- Emergency numbers: 112, 101, 102, 103, 104
- Roaming: how to call abroad without overpaying
- A business phone number: 495, 800 or mobile
- Caller ID apps: how the databases work and why they are wrong