Free
From a BASE number
1999
BASE customer service phone number, opening hours and contact details
By Maaike Zahn | Last updated on 15 April 2025
BASE customers reach the customer service team on 1999. For free, independent advice or to subscribe, call CallMePower on 02 588 25 47. On this page you'll find all the phone numbers, opening hours and contact options for BASE.
1999
4 phone numbers
Shops across Belgium
How do you contact BASE?
Four channels, one goal: get your question answered as fast as possible. Pick whatever best matches your situation.
Call customer service
4 phone numbers with opening hours — general customer service, helpdesk and international.
See the numbersOnline customer area
My BASE — check invoices, manage your subscription and chat with customer service.
Open customer areaEmail or social media
Contact form or message via Facebook, X or Instagram.
See channelsVisit a shop
Face-to-face advice, pick up or drop off devices — find the nearest BASE store.
Open store locatorBASE phone numbers
BASE has different phone numbers depending on your situation. Below you'll find each number with the cost and purpose.
Standard rate
From another Belgian number
04 86 19 19 19
Free
Not yet a customer
0800 66 311
Standard rate
From abroad
+32 486 19 19 19
Recommended when in doubt
CallMePower — free advice
02 588 25 47Compare BASE with other Belgian operators — free and independent.
BASE customer service opening hours
Not every BASE service team is reachable at the same times. Below is a visual overview per service.
General customer service
Weekdays
8:00 – 20:00
Saturday
9:00 – 17:30
Sunday & bank holidays
—
Helpdesk
Weekdays
8:00 – 22:00
Saturday
—
Sunday & bank holidays
9:00 – 22:00 (also on public holidays)
CallMePower
Weekdays
8:00 – 19:00
Saturday
9:00 – 18:00
Sunday & bank holidays
Closed
Ad – Free CallMePower comparison service
Need help comparing telecom providers?
Call CallMePower for free help comparing every Belgian telecom provider.
Phone advisory service operated by CallMePower (part of the Selectra group), helping you compare every Belgian telecom provider free of charge and find the best plan for your situation. CallMePower has no partnership with this entity and cannot sign up customers with it.
My BASE — the online customer area
In My BASE you can handle many things yourself — often faster than by phone. Check invoices, change your subscription and get notifications about outages or new options.
Download the My BASE app
Manage your subscription, check usage and invoices and chat with customer service — straight from your smartphone.
Reach BASE via email or social media
Prefer not to call? You can also reach BASE digitally — via the online contact form or via the official social media channels. Both options are listed below, with the typical response time and the right channel for your question.
BASE email & contact form
BASE doesn't publish a direct customer email address. Use the contact form or online chat instead.
Open the BASE contact formOnline chat available via My BASE.
BASE social media
Follow or message BASE via the official channels.
Procedures with BASE
Moving, becoming a customer or cancelling — click on each card to see the full procedure.
Become a BASE customer
Subscribe to a new BASE plan.
- Via CallMePower — free advice, comparison with other operators, help cancelling your current plan.
- In a BASE shop — face-to-face advice and instant activation.
Notify BASE of your move
Change your address with BASE — mobile or pack.
Your address change makes sure invoices, post and any visiting engineers reach you at the right address. The approach depends on the type of subscription.
Mobile-only subscription
Change your billing address directly in My BASE. Your number and plan remain unchanged.
Internet or pack subscription
Notify your move 2 to 4 weeks in advance — an engineer may need to visit the new address to activate the connection.
Details BASE will need
- Customer or contract number
- Current and new address
- Planned moving date
- Phone number where the engineer can reach you
Cancel or switch from BASE
Easy Switch, number portability or via CallMePower.
- Via CallMePower — cancel and subscribe to a new plan in one call.
- Easy Switch when switching internet or TV providers — no interruption to your connection.
- Number portability when switching mobile plans — keep your phone number.
- Via My BASE — manage your cancellation yourself.
BASE shops in Belgium
BASE has its own shops, dealers and retail points across Belgium. In a shop you can get advice, subscribe to a new plan, pick up or drop off devices, and resolve any issue that can't be handled by phone.
210 retail points across Belgium — click a marker for the shop name and address.
Loading map…
Filing a complaint with BASE
Stuck with an unresolved problem? Follow these three steps — the Telecommunications Ombudsman is your last resort.
1
Contact customer service
Describe the problem to BASE customer service, mention earlier contact attempts and keep the reference number of your case.
3
Ombudsman
Escalate to the Telecommunications Ombudsman — an independent body that mediates between you and the operator.
Frequently asked questions about BASE customer service
Can't find your answer below? Call our Belgian advisor on 02 588 25 47 — free and pressure-free.
BASE customers reach customer service on 1999 from a BASE number (free) or on 04 86 19 19 19 from another Belgian number (standard rate). For advice or a new subscription, call CallMePower on 02 588 25 47.
BASE has two free numbers: 1999 (only from a BASE mobile) and 0800 66 311 if you are not yet a customer. All other BASE numbers are charged at the standard rate of your operator.
Call +32 486 19 19 19. This number is reachable during the same opening hours as the general customer service (weekdays 8:00–20:00 and Saturday 9:00–17:30) and is charged at the roaming rate of your foreign operator.
BASE has no direct email address for customers. Written contact runs through the online contact form, the chat in My BASE or via social media (Facebook, Instagram, X).
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