This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Norwegian numbers.

Initial Overview

1. Supported Number Types

Number Type	Format Example
Geographic (Local)	e.g., +47 21, +47 23 +47-2 - Oslo +47-32 - Buskerud and Jan Mayen +47-33 - Vestfold +47-35 - Telemark +47-37 - Aust-Agder +47-38 - Vest-Agder +47-5 - South-western counties, including Bergen +47-6 - South-eastern counties and Oppland +47-7 - Møre og Romsdal, Trøndelag (Trondheim) and northern Norway +47-79 - Svalbard
National	e.g., 85 xxx xxx
Toll-Free	e.g., 800 xxx xx

⚠️ Mobile numbers (+47 4xx or +47 9xx) are not portable to VoIP operators.

You can request number porting using the International Porting Form.

Looking to port numbers from other countries? See Global Porting Coverage.

You’ll need to submit a signed Letter of Authorization - LOA Template is added as a .zip at the end of this guide.

(Other document requirements listed below.)

⚠️ Timelines may vary if submitted details do not match your current provider’s records.

Signed LOA (completed and signed by an authorized representative; details must match provider records)
Recent invoice (issued within the last 30 days; must show number(s) and account holder name)

Business registration certificate
- Must be issued or updated within the last 12 months
- Must show a valid address in Norway
- Issued by the Brønnøysund Register Center (official government registry of legal entities in Norway)

Submit Your Porting Request
Send your request to the CloudTalk Porting Team to begin the process.
Initial Review
Cloudtalk team'll verify number portability and confirm the next steps.
Documentation Collection
Complete and sign the LOA (Letter of Authorization), and provide a recent invoice from your current telecom provider.
Submission to Carrier
CloudTalk submits your request to our partner carrier, who then forwards it to your current provider.
Approval or Rejection
- If approved, Cloudtalk team will confirm the porting date (typically 2–4 business days in advance).
- If rejected, Cloudtalk team will share the reason and guide you on how to correct and resubmit the request.

Issue	Explanation	How to Fix
Missing Registration	Business registration not submitted or expired	Submit updated certificate from Brønnøysund Register Center
Mismatched Info	Invoice or LOA details do not match provider records	Confirm your data with provider before submitting LOA
Inactive Number	Number has been deactivated or is no longer valid	Ask your provider to reactivate the number
Outdated Invoice	Invoice older than 30 days	Submit a recent billing document with matching number details
Number is part of a Range	This number is part of a block of numbers and can't be ported out individually	Ask your current provider if the number can be split into individual numbers so it can be ported away