phone number validator — Norway

Norway phone number validator

Enter a phone number

How the phone number format works

Format: Norway phone number in national or international (+47) format
Example: +4740612345

Things to watch for

Accepts national or international (E.164, e.g. +47...) format
Validated with Google's libphonenumber; confirms the number is possible/valid for this country, not that it is currently assigned or reachable

Regex for phone number

^[+]?[0-9 ()\-]{6,}$

A Norwegian phone number is always 8 digits with no area code and no trunk prefix — Norway did away with both decades ago, so a number is dialed identically whether the call is local or from abroad, aside from adding +47 in front. A mobile number starts with 4 or 9 (412 34 567), while a geographic landline number typically starts with 2, 3, 5, 6, or 7 depending on region.

How this validator works

Type the 8 digits alone (41234567) or with the country code (+4741234567); this tool checks length and leading-digit range against Norway’s real numbering plan using Google’s libphonenumber, entirely client-side. Because there’s no trunk zero to strip, the national and international forms differ by exactly the +47 prefix — unlike Germany or the UK, nothing gets added, removed, or reshuffled between the two.

What a pass doesn’t tell you

A pass confirms the 8 digits sit inside a real Norwegian mobile or landline range — it doesn’t confirm that specific mobile is switched on or that the landline is still connected. Norway reassigns numbers over time, and format validity can’t detect that on its own.

Scope: use this to catch a missing digit, an extra digit, or a wrongly-added 0 in front of +47 before a number reaches a form or SMS platform — not as proof the number rings.

Content last reviewed 2026-07-07.

phone number FAQ

Does a Norwegian phone number use a trunk 0 that gets dropped for +47?

No. Norway has no trunk prefix at all — the 8 digits dialed domestically are the exact same 8 digits that follow +47 internationally, nothing added or stripped.

How do I tell a Norwegian mobile number from a landline?

By the first digit: mobile numbers start with 4 or 9, geographic landline numbers mostly start with 2, 3, 5, 6, or 7 — both are 8 digits total, so the leading digit is what separates them, not the length.

Does a valid Norwegian number check mean the line is active?

No. It only confirms the 8 digits fall within a real Norwegian numbering-plan range — it can't confirm a SIM is topped up or a landline connected, since that requires a live carrier lookup this tool doesn't perform.