Number porting lets Costa Rica businesses change carrier or move to IP telephony while keeping their numbers. This modernizes your phone system without losing the number your customers already know.
This article covers the process in Costa Rica. To first understand what porting is and what it involves, read Number porting for business.
What is number porting
It is the process that moves a number from one carrier to another. Your number stays the same; what changes is the provider that carries the calls. It is key when you move to a SIP Trunk or a cloud phone system.
Why port your numbers
- Keep your number: the one on your advertising and materials.
- Continuity: your customers keep calling the same place.
- Modernize with no friction: move to IP telephony without reprinting or retraining.
What you need
- Account holder and current line details.
- Numbers to port and availability confirmation.
- Coordinating the switch date to avoid outages.
Availability and timing depend on the current carrier. TelHarbor manages the process and coordinates the activation.
Porting and new numbers
Besides porting, you can add new numbers: local Costa Rica, United States or toll-free. This combines your usual number with new lines for campaigns or sites.
How to start porting
TelHarbor reviews feasibility, prepares the documentation and coordinates the switch. Learn about the service in IP telephony, see the plans or request a quote.
How to prepare so service never drops
Every company fears being without phones on cut-over day. A simple sequence avoids it, and it is the one we always follow:
- Stand up the new service first with temporary numbers and test it with real traffic: inbound, outbound, menus, queues and recording.
- Forward the old number to the new service, so your team is already working there before the port.
- Port during a low-traffic window.
- Remove the forward and the ported number lands directly.
Done that way, the real interruption is measured in minutes and happens when almost nobody is calling.
What usually delays a port
- Mismatched data. The company name must be spelled exactly as the current carrier has it. One accent or a missing "S.A." is enough for a rejection.
- Outstanding invoices with the current carrier.
- Numbers already cancelled. This is the irreversible mistake: never cancel service before porting. A released number goes back to the carrier and is usually lost.
- Partial blocks. If you hold a range of numbers, the whole range ports, not a few of them.
- The wrong signature. The authorisation is signed by the registered legal representative, not by whoever manages the account.
What to check after porting
A port is not finished when the first call arrives. Worth reviewing:
- Inbound calls from fixed and mobile lines on different carriers. Some routes take longer to update.
- Outbound caller ID: that customers see the right number, not a temporary one.
- Inbound SMS, if the number received them.
- Forwards and voicemail configured on the old system, which must be rebuilt on the new one.
- Everywhere the number is published: website, Google listing, email signatures, invoices and signage.
Use the port to tidy up your numbering
A port is a good moment to review which numbers are worth keeping. It is common to find lines nobody uses any more — a fax, a closed branch, an old campaign — still billing every month. Keep the ones that are published and the ones that carry real traffic; the rest can be consolidated.
And if you need extra coverage, new local Costa Rica, US or toll-free numbers can be added alongside the ported ones.
Frequently asked questions
Can I keep my number when changing carrier?
In most cases yes, through number porting, subject to the current carrier availability.
How long does porting take?
It depends on the carrier and line type. TelHarbor coordinates the date to minimize any interruption.
Can I port and also get new numbers?
Yes. You can port your numbers and add new local, United States or toll-free numbers.
Does it work for IP telephony and SIP Trunk?
Yes. Porting is common when moving to a SIP Trunk or a cloud phone system.
How long does porting take in Costa Rica?
It depends on the current carrier and on the paperwork being correct. TelHarbor checks feasibility first and coordinates the date so there is no outage.
Could I end up without phones?
Not if you prepare: with the new service tested and forwarding active before the port, the interruption is minutes and in a low-traffic window.
What documents are required?
A recent invoice from the current carrier, company registration, legal representative ID, a signed authorisation letter and the exact list of numbers.
Should I cancel my current service first?
Never. It is the most expensive mistake: a cancelled number returns to the carrier and usually cannot be recovered.