Short answer
Most porting rejections come from mismatched account holder details, or from numbers still tied to copper lines, ADSL or bundled services with the losing carrier. Accurate entity details and a promptly signed Letter of Authority (LoA) avoid most delays.
In detail
Common causes and how to avoid them:
- Account holder mismatch: give the exact entity name and registration, billing address and account number your current carrier holds. Mismatches cause most rejections.
- Numbers tied to other services: if a number sits on a copper line, ADSL or bundled fibre voice, that service must be terminated or migrated first.
- Stale paperwork: an LoA that is signed late or submitted too long after signing is a common reason for rejection.
- Missed porting windows: ports happen in fixed windows, and missing a slot can push go-live out by 5 to 10 working days.
A typical port takes 5 to 15 business days from LoA submission. Large blocks, multi-site or multi-carrier consolidations usually take 3 to 6 weeks.
FirstNet prepares the LoA, submits it to the losing carrier and handles any queries. It does not control the other carrier's response time, so it does not promise dates that depend on another operator, but it flags these risks early in planning.
Source: FirstNet Business Voice Minutes service page →
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