+62ID
Indonesia number screening
Indonesian numbers vary in length and churn fast on prepaid — the question is not whether a number is valid, but whether it is still in use.
Mobile number format
Indonesian mobile numbers start with 08 and run 10 to 12 digits nationally — 9 to 11 once you strip the 0 for +62. The length is genuinely variable: 0811–0813 and 0852 belong to Telkomsel, 0817–0819 to XL. Cleaning by fixed length will destroy real numbers.
Main carriers
- Telkomsel
- Indosat Ooredoo Hutchison
- XL Axiata
- Smartfren
Telkomsel has the widest footprint; Indosat Ooredoo Hutchison came out of the Indosat–Tri merger, and XL Axiata and Smartfren have been consolidating too. The base is almost entirely prepaid with cheap starter packs, so people swap SIMs casually and a list left untouched for six months visibly loses live numbers.
On the ground
Cash on delivery is still the default, so an unreachable number is a lost order rather than a lost message — list quality is a direct cost line. SIMs register against the national NIK with a per-person cap, but recycled numbers go back on sale quickly, so older files carry a meaningful share of entries where the line is live but the person behind it has changed.
Screening guidance
Normalise formats against the real rule — 08 prefix, 9 to 11 digits after the 0 — rather than trimming to a fixed length. Then screen WhatsApp registration and activity, the baseline reachable set here. Layer Shopee, Bukalapak and TikTok for commerce, and weight recent activity above bare validity: in a prepaid market those are not the same thing.
Key platforms in Indonesia
WhatsApp penetration in Indonesia is about as deep as it gets: small merchants run WhatsApp Business as their storefront, and ordering, haggling and after-sales all happen in the chat window. Instagram and TikTok drive discovery — TikTok Shop was shut down in 2023 and returned through Tokopedia — while Shopee and Bukalapak close the sale.
FAQ
How many digits is an Indonesian mobile number?
It varies. Nationally they start with 08 and run 10 to 12 digits; after stripping the 0 for +62 that becomes 9 to 11. Plenty of teams clean Indonesian files against a single fixed length and quietly delete a pile of perfectly good numbers. Validate against a range, never an exact digit count.
How do you check if an Indonesian number has WhatsApp?
Only by testing each number — prefix and carrier give you nothing. NexCheck screens Indonesian numbers for WhatsApp registration status, splitting a batch into registered and unregistered so you can then filter on activity. Given how deep WhatsApp runs here, that single layer usually sets the ceiling on a list.
Can an Indonesian prefix identify the carrier?
Roughly, but do not treat it as final. 0811–0813 and 0852 sit with Telkomsel, 0817–0819 with XL, 0855–0858 with the Indosat side. The catch is that mergers and portability both move numbers around, so any prefix table lags reality and the operator still has to be resolved per number.
Start screening Indonesia numbers
Submit numbers for this market after signup, or integrate in bulk through the API.
Get started free