What is a country calling code?

A country calling code (also called a dial-in code or IDD code) is the numeric prefix you dial before a local phone number to reach someone in another country. For example, the United States and Canada share code +1, the United Kingdom uses +44, and India uses +91. These codes are standardized by the International Telecommunication Union (ITU) under the E.164 numbering plan.

How do I dial an international number correctly?

Start with your country's exit code (00 in most countries, 011 in the US/Canada), then the destination country code, then the area or city code (dropping any leading 0), and finally the local subscriber number. Example from the US to the UK: 011 + 44 + 20 + local number. With a modern VoIP or mobile service, you can simply use the + prefix instead of the exit code — e.g. +44 20 XXXX XXXX.

Which country uses the +1 country code?

The +1 code covers the entire North American Numbering Plan (NANP), which includes the United States, Canada, and many Caribbean nations such as Jamaica, Trinidad & Tobago, and the Bahamas. Callers from outside the NANP cannot distinguish the destination country from the dialing code alone — the 3-digit area code that follows +1 determines the specific region.

Why do some countries share the same country code?

Shared codes exist for historical, political, or geographic reasons. The NANP (+1) was designed to cover North America as a unified zone. Russia and Kazakhstan share +7. Some small island territories use the same code as a larger nation (e.g., many Caribbean islands fall under +1). Sharing a code simplifies billing and routing within those regions but requires longer subscriber numbers to differentiate destinations.

Can I make international calls with Teloz?

Yes. Teloz supports outbound international calling to 40+ countries from any plan. Rates vary by destination and are billed per minute unless you are on a plan that bundles unlimited US/Canada calling. For high-volume international traffic, ask about our wholesale voice rates — Teloz operates as a Tier-1 carrier with direct peering, which means lower latency and more competitive per-minute costs than resellers.