Browse Country Codes by Region
Regions & Country Calling Codes
Use this page to explore international country calling codes by region. Jump directly to curated country lists for Africa, Asia, Europe, the Americas and Oceania, with dialing notes and time zone context to help you plan global calls and campaigns.
Quick region search
Start typing a region or country name to quickly jump to the right area of the world.
On region pages you can see full country lists with calling codes, ISO codes and dialing formats.
Why browse country codes by region?
Grouping countries by region helps call centers, exporters, SaaS platforms and global teams plan outbound campaigns more efficiently. Neighboring markets often share similar time zones, working hours and even dialing patterns.
For example, if you are targeting Tây Âu, you may only need to adjust calling windows within one or two hours. If you are running a campaign in Đông Á or across Bắc Mỹ, time zone differences become more significant and your agents’ shifts need to be scheduled accordingly.
Main world regions
Select a region below to view the full list of countries, their international calling codes, ISO codes, time zones and dialing tips.
Châu phi
Africa – Country Codes & Time Zones
Diverse region spanning North, West, East, Central and Southern Africa, with a wide range of calling codes and time zones from UTC−1 to UTC+4.
Châu Á
Asia – Country Codes & Time Zones
The largest region, including East, Southeast, South, Central and Western Asia. Time zones range from UTC+2 to UTC+12 with high mobile penetration.
Châu Âu
Europe – Country Codes & Time Zones
Includes EU and non-EU markets such as Germany, France, United Kingdom, Switzerland and others, mostly spanning UTC and UTC+1 (with summer time).
Bắc Mỹ
North America – Country Codes & NANP
Includes the United States, Canada, Mexico and Caribbean NANP members. Many markets share a unified numbering plan under country code +1.
Nam Mỹ
South America – Country Codes & Time Zones
Southern part of the Americas, including Brazil, Argentina, Chile and others. Multiple time zones from UTC−5 to UTC−2 with strong mobile usage.
Châu Đại Dương
Oceania – Country Codes & Time Zones
Includes Australia, New Zealand and Pacific island nations, with country codes largely in the +6x and +7x range and time zones far ahead of UTC.
Trung Đông
Middle East – Country Codes & Gulf States
Covers Gulf Cooperation Council (GCC) markets and neighboring countries, with many business hubs running Sunday–Thursday work weeks.
vùng Caribe
Caribbean – Country Codes & NANP Islands
Island nations and territories, many of which share the +1 NANP country code but have distinct area codes.
Trung Mỹ
Central America – Country Codes
Narrow isthmus linking North and South America, including markets like Costa Rica, Panama and Guatemala with codes mainly in the +5x range.
Region comparison: time zones & dialing patterns
At a glance, you can see how regions differ in terms of time zones and typical calling patterns. Use this as a planning tool when designing outbound campaigns or scheduling international meetings.
High-level overview of major regions
| Vùng đất | Approx. country count | Typical calling code ranges | Múi giờ chính | Business calling notes |
|---|---|---|---|---|
| Châu phi | ~54 | +2x, +23x, +24x | UTC−1 đến UTC+4 | Watch for varying infrastructure quality and mobile dominance in many markets. |
| Châu Á | ~49 | +8x, +9x, +6x | UTC+2 to UTC+12 | Large time zone spread; key business hubs in UTC+7 to UTC+9 range. |
| Châu Âu | ~44 | +3x, +4x | UTC, UTC+1, UTC+2 | Relatively compact time zones; many markets use daylight saving time. |
| Bắc Mỹ | ~23 | +1 (NANP), +5x | UTC−10 to UTC−3 | Unified NANP for +1 markets; multiple time zones from Pacific to Atlantic. |
| Nam Mỹ | ~12 | +5x, +59 | UTC−5 đến UTC−2 | Most markets are within 1–3 hours of Eastern Time (US), but check local daylight rules. |
| Châu Đại Dương | ~14 | +61, +64, +67x | UTC+10 to UTC+13 | Often far ahead of Europe & the Americas; best call windows are morning for them, evening for you. |
| Trung Đông | ~15 | +9x, +97x | UTC+2 to UTC+4 | Some markets follow Sunday–Thursday business weeks; adjust scheduling accordingly. |
FAQ: Regions and international country codes
How are regions defined on CountryCode.online?
We follow a practical mix of UN and telecom industry conventions, grouping countries into Africa, Asia, Europe, North America, South America, Oceania and the Middle East. For campaign planning, we also expose useful sub-regions such as the Caribbean and Central America.
Do country codes always reflect region?
Not perfectly. Many regions have characteristic ranges (for example, Europe is often +3x and +4x), but there are historical exceptions. That is why each region page lists individual countries with their exact calling codes and ISO identifiers.
Which region should I target for my campaign?
It depends on your product, language support and time zone coverage. Many teams start with one or two regions that have similar working hours—for example, Western Europe or Southeast Asia—then expand outward as their telephony infrastructure and staffing grows.
Where can I see full country lists?
Click any region card above to access a dedicated page with a complete table of countries, calling codes, ISO codes, time zones and links to detailed country-level dialing guides. You can also use the global Quốc gia page to browse all markets in a single list.