How to Call Colombia from the US: Country Codes, Area Codes, Time Zones, and the Cheapest Methods

Every call from the US to Colombia begins with the same two-part prefix:

US exit code + Colombia country code: - 011 — the US international access code (used when dialing from a traditional landline or older phone) - +57 — Colombia's country code (used when dialing from any smartphone or VoIP app; the + replaces the 011 exit code automatically)

Colombia uses a closed 10-digit dialing plan — all phone numbers, whether landline or mobile, are exactly 10 digits when the area code is included. This makes the format consistent once you know which type of number you're dialing.

If you need a dedicated line for regular Colombia calls, consider international virtual numbers.

Colombian landlines use a 3-digit area code starting with 60, followed by a 7-digit local subscriber number. This format was introduced as part of Colombia's national numbering modernization — replacing the old single-digit area codes (1, 2, 4, 5) that many US callers still attempt to use.

If your call is not connecting, using an outdated single-digit area code is the most likely reason.

Landline dialing examples: - Bogotá landline: +57 601 234 5678 - Medellín landline: +57 604 321 9876 - Cali landline: +57 602 456 1234 - Barranquilla landline: +57 605 789 0123

If you are dialing from a traditional US landline phone, replace the + with 011: 011 57 601 234 5678.

Colombian mobile numbers work differently from landlines and require a separate dialing approach. The key distinction: Colombian mobile numbers do not use a city-specific area code. The entire 10-digit number (starting with 3XX) is self-contained and contains all the routing information needed.

Colombian mobile number characteristics:

Mobile dialing examples: - +57 310 456 7890 (Claro mobile) - +57 320 987 6543 (Movistar mobile) - +57 300 123 4567 (Tigo mobile)

The most common mistake: Adding a city area code (like 601 for Bogotá) in front of a mobile number. If someone gives you a 10-digit Colombian number starting with 3, dial it exactly as given after +57 — no area code prefix needed.

For the full numbering plan, see Wikipedia's overview of telephone numbers in Colombia.

Colombia operates on Colombia Standard Time (COT), which is UTC−5 all year round. Colombia does not observe daylight saving time.

This creates a shifting time gap with different parts of the United States depending on the season. Colombia's business hours are generally 8:00 AM to 6:00 PM COT, Monday through Friday.

The overlap window for US callers is widest on the East Coast and narrowest on the West Coast during US daylight saving months.

There are five main methods, ranging from traditional carrier minutes to free apps to enterprise VoIP platforms.

Use WhatsApp by default for personal calls. WhatsApp is the dominant messaging platform in Colombia — most individuals and small businesses use it as their primary contact channel. A WhatsApp call to Colombia costs nothing beyond your data plan and typically delivers better audio quality than a traditional PSTN call.

Verify the number type before dialing. Calling a Colombian mobile number and adding an area code prefix (or vice versa) wastes the call and the per-minute charge. Confirm whether you have a landline (7-digit local number + 60X area code = 10 digits total) or a mobile (10 digits starting with 3) before dialing.

Schedule calls during Colombia's morning hours. The 8 AM–12 PM window in Colombia maximizes the overlap with US East Coast and Central time zones during business hours.

For business, consider a Colombia virtual number. A virtual Colombian local number lets your contacts in Bogotá or Medellín call you at local rates — eliminating the barrier of international dialing for inbound calls and building local market presence without a physical office.