0480: which operator does this number belong to?

The 0480 prefix was assigned to Telenet, which opened it in 2020. But since number portability, in place in Belgium since 2002, this prefix no longer guarantees the current operator: the holder may have switched brands while keeping the number. To find the real operator, there is one reliable tool, the NPA database at crdc.be.

A Belgian mobile prefix, the two digits after the 04, indicates the operator that received that number range originally, not necessarily the one billing the subscriber today. Portability is the right to keep your number when you change operator. In plain terms: 0480 tells you where the number came from, rarely where it is now.

0480: which operator is it in Belgium?

Originally, 0480 is a Telenet prefix. The operator put it into service in 2020 for its new mobile SIM cards. A number starting with 0480 was therefore opened at Telenet, or at a brand that relies on its network.

Telenet has stacked up prefixes over the years. According to Astel's prefix dossier (updated late 2024), the operator successively opened 0465, 0467, 0468, 0469, then 0480 in 2020. BASE, which is also part of the Telenet group, keeps its own series in 048x, from 0483 to 0489. The two brands share the same antenna network, but not the same original number ranges.

In practice, if someone gives you a new Telenet number opened in recent years, it often starts with 0480. That says nothing about their plan or their bill, only about the brand that issued the SIM card at the start.

Does the 0480 prefix guarantee the current operator?

No. The prefix shows the original operator, not the current one. Since portability arrived in Belgium in 2002, any subscriber can change brands while keeping their number. A 0480 assigned by Telenet may therefore sit today at Proximus, Orange or an alternative operator.

This is the truth that prefix lists forget to highlight. A neighbour opened his line at Telenet in 2021 with a 0480, then moved to Proximus last year for a better price: his number still starts with 0480, but it is billed by Proximus and runs on the Proximus network. The prefix did not move, the operator did.

This logic applies to every 04xx range. If you first want to understand which operator to choose, rather than where a number comes from, our guide on which mobile operator to choose in Belgium tackles the problem through usage and price.

How do you find out which operator a 0480 number really belongs to?

Enter the full number, as 04XXXXXXXX, on crdc.be, the database run by the NPA (Number Portability Association), also reachable via 1399.be. The tool returns the operator currently serving the number. Orange and BASE offer the same lookup from their support pages.

The NPA is the association that manages portability for all Belgian operators. Its database is therefore the source of truth: it knows which network actually serves a number, regardless of the prefix. That is more reliable than any prefix list, which only reflects the original assignment.

Example: you get a missed call from an unknown 0480. Type the whole number on crdc.be; within seconds, you see whether it is at Telenet, elsewhere, or has been ported. It will not give you the person's identity, but it already clears part of the doubt.

Is the operator lookup free and anonymous?

Yes. Consulting the NPA database on crdc.be is free and anonymous. It shows the operator serving the number, never the holder's identity or address, and asks for no registration. You get the network name, nothing more.

Belgian 04xx mobile prefixes: the original operator at a glance

Here are the main 04xx ranges and the operator that received them originally, according to Astel's prefix dossier. Reminder: portability may have changed the real operator of any number on this list.

A call from a 0480: telemarketing or a scam?

Not necessarily, but caution is healthy. Many 0480s are genuine subscribers; others are used for commercial telemarketing. On page-jaune.be, several 0480 numbers are flagged as "nuisance" by users in 2026, most often for repeated advertising calls.

A simple tell: a telemarketer calls during office hours, leaves no voicemail and rings several times. A legitimate caller usually leaves a message or sends a text. If the number hangs up after one ring to push you to call back, that is the classic call-back scam pattern.

How do you block an unwanted 0480 number?

Add the number to your phone's block list: Android and iOS do it in two taps from the call log. Against commercial telemarketing, register for free on the Do Not Call Me list (dncm.be), which marketers are legally required to respect in Belgium.

Should you call back an unknown 0480 number?

If you do not recognise the number and no message was left, do not call back in a hurry. Check the operator on crdc.be first, then look the number up in a reverse directory or a reporting site such as page-jaune.be. A 0480 is a Belgian mobile at the standard rate, so calling back is not premium-priced in itself.

The real risk is not the cost of the call, it is what it triggers: confirming your number is active, drawing you into a sales conversation, or hitting a redirection. When doubt remains, wait for a possible message. A serious caller will find another way to reach you.

To go further on choosing a network rather than tracing a number's origin, compare coverage with our Proximus, Orange or BASE feature. In short: the prefix tells the number's past, the NPA tool tells its present.