Latin America
SIP Trunk Colombia — +57 Termination & DID Numbers
Colombia changed its fixed-line numbering in September 2021: landlines are now 10 digits starting 60 plus a regional digit, such as 601 for Bogotá and 604 for Medellín. Older dial plans that still use 7-digit local numbers need updating before you send traffic.
Overview
Routing calls to Colombia
Traffic to Colombia leaves our SBCs on more than one upstream carrier per prefix. If a leg toward Bogotá or Medellín starts returning 503s or long post-dial delay, the next attempt goes to another carrier automatically. Calls to Cali, Barranquilla, Cartagena and Bucaramanga follow the same failover logic.
CRC sets the Colombia numbering plan, and our prefix tables follow it closely. Supported number types: geographic, mobile and toll-free. There is no trunk prefix to strip: send 57 followed by the national number as written.
Some Colombia number ranges can be activated with basic company details, while others need proof of address. Tell us the city and number type, and we will confirm what is needed before you order.
What you get
What you get in Colombia
One account and one balance, with the same SBCs for termination and inbound numbers.
CLI route tier
Caller ID delivered end to end on +57 calls. Use it for sales, support and any traffic where answer rates matter.Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.Number types
Geographic, Mobile, Toll-free. DID availability varies by range and city.Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.Multi-carrier failover
Every +57 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.
Number formats
How to dial Colombia from your PBX
Send E.164 digits. The sample number below shows the format only.
| Format | Example | Notes |
|---|---|---|
| International (E.164) | +57 601 234 5678 | How the number is written and stored. |
| Sent from your PBX | 576012345678 | E.164 digits with no plus, prefixed by your tech prefix if your account uses one. |
| With 00 exit code | 00 57 601 234 5678 | Accepted on the trunk. We normalise it to E.164. |
| National format | 601 234 5678 | Dialled inside Colombia. There is no trunk prefix. |
Compliance
Colombia rules to know
What applies before your first call or your first DID goes live.
Compliance box
- Regulator
- CRC
- Caller ID
- A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
- DID KYC
- Sometimes required
Rules change — our team confirms current requirements before activation.
Use cases
Who uses Colombia routes
- 01
Nearshore BPOs in Bogotá and Medellín serving English and Spanish markets
- 02
Collections and customer care calling Colombian 3xx mobiles
- 03
01 8000 toll-free lines for national retail brands
Setup
Start calling Colombia in 3 steps
- 01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card. - 02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC. - 03
Dial +57
Send 57 + national number in E.164 and check the CDR for your first test call.
Further reading: Buying DID Numbers Abroad: KYC, Formats and Costs
FAQ
Colombia SIP trunk questions
What changed in Colombian numbering?
Fixed numbers became 10 digits starting 60 (601 Bogotá, 602 Cali, 604 Medellín, 605 Caribbean coast). Mobiles remain 10 digits starting 3.
How do I send Colombian numbers?
Send 57 followed by the 10-digit number, for example 576012345678.
Who regulates numbering?
The CRC (Comisión de Regulación de Comunicaciones) manages the numbering plan.
Is Colombia good for nearshore call centres?
Yes. Time zone alignment with US Eastern/Central time and a large bilingual workforce make it a common choice.
