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DID numbers · BE +32

Belgium DID Numbers for inbound and CLI

Local numbers in Belgium that ring your SIP endpoint and double as verified outbound caller IDs. Order, document and route them from the portal.

Europe+32
Open accountTalk to routing
key_facts · be
country_code
+32 · BE
national_len
8 digits for fixed (9 with some area codes), 9 for mobile, after the trunk 0
mobile
046x · 047x · 048x · 049x
fixed
02 Brussels · 03 Antwerp · 04 Liège
regulator
BIPT (Belgian Institute for Postal Services and Telecommunications)
timezone
CET (UTC+1), CEST (UTC+2) in summer.
reviewed
2026-10-09

Overview

DID numbers to Belgium

A DID (direct inward dialing) number gives you a real Belgium number on your SIP trunk. It receives calls from local customers and, because you hold it, it is also the strongest caller ID you can present on outbound traffic to Belgium.

Belgian geographic numbers in Brussels, Antwerp, Ghent and Liège are available with proof of a local address, plus freephone 0800 numbers.

Belgium is a multilingual market (Dutch, French, German), so CLI and agent language should match the region you call.

Number formats
TypeE.164
Mobile+32 470 12 34 560470 12 34 56
Fixed+32 2 123 45 6702 123 45 67

+32 followed by an 8–9 digit national number.

Regulation · BIPT

Caller ID rules in Belgium

A practical summary for operations teams, not legal advice. Confirm current requirements with counsel before you launch.

Last reviewed

Caller-ID presentation

BIPT numbering rules require a valid assigned number, and marketing calls must not suppress it. Consumers can register on the “Do Not Call Me” list (Bel me niet meer / Ne m’appelez plus), which telemarketers must check. Belgian consumer law also requires the caller to state their identity and the commercial purpose at the start of the call, and the Data Protection Authority treats call lists as personal data under the GDPR.

Do Not Call Me

Consumers can register on the Do Not Call Me list. Marketing calls must be scrubbed against it.

Number presentation

BIPT rules require presentation of a valid, assigned number.

GDPR

Consent and transparency obligations apply to call recording and data.

Calling hours

No single statutory window; weekday business hours are expected.

Dialing & setup

Dialing Belgium correctly

  • Drop the trunk 0: 02 123 45 67 becomes +32 2 123 45 67.
  • Use the right language: Dutch in Flanders, French in Wallonia, both in Brussels, German in the eastern cantons.
  • Refresh your Do Not Call Me scrub before every campaign.
  • Brussels and the other large cities have single-digit area codes, so subscriber numbers are longer there.
  • Belgian mobiles are 9 digits after the trunk 0 and start with 046–049; fixed numbers are 8 digits. A length check per type catches most bad leads before they are dialled.

Caller ID best practice

Present a Belgian number assigned to you and match language and region to the called party.

Troubleshooting

Common SIP errors on Belgium calls

  • 404

    Not Found

    The trunk 0 was kept, or the number is out of service.

  • 403

    Forbidden

    The CLI is invalid or not assigned to you.

  • 486

    Busy Here

    The called party is busy.

Quality guidance

What healthy Belgium traffic looks like

Belgian routes are reliable. Answer rates differ by language region, so compare Flanders and Wallonia separately.

38–55%

ASR

2–4min

ACD

2–5s

PDD

Typical ranges on healthy routes, as guidance only. Results depend on your lists, CLI reputation and campaign type. Live per-destination stats are in your portal.

Setup

Connect your DID number for Belgium

Replace the placeholders in angle brackets with the values from your portal. Full trunk templates for each platform are in the portal after sign-up.

Asterisk inbound route+32
; extensions.conf — inbound Belgium DID from CLIRoutes
[from-clirroutes]
exten => +3221234567,1,NoOp(Inbound Belgium DID)
 same => n,Set(CALLERID(name)=BE support line)
 same => n,Goto(ivr-main,s,1)

; Present the same DID on outbound Belgium calls once it is verified.

FAQ

Belgium DID numbers: FAQ

Can’t find what you need? Our routing team answers within the hour, around the clock.

Do I need to scrub against Do Not Call Me?

Yes, for marketing calls to consumers in Belgium.

Can I present a Dutch or French CLI for Belgian calls?

You can present any valid number you are authorised to use, but Belgian numbers get the best answer rates.

Which language should I use for Belgian calls?

Match the region: Dutch for Flanders, French for Wallonia, either for Brussels (ask first), German for the eastern cantons. Wrong-language calls end fast.

How often should I check the Do Not Call Me list?

Before every campaign. Registrations take effect within weeks, so a scrub that is a month old can already be out of date.

Can I present a Belgian mobile number?

Only if it is assigned to you and reaches your team. A Brussels fixed number is the more common choice for business calls.

What documents do I need for Belgium DIDs?

It depends on the number type. Many geographic numbers in Belgium require proof of a local address or business registration; toll-free and non-geographic numbers usually need less. The portal lists requirements per number type before you order.

Other products in Belgium

Nearby countries

Related guides

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