+62 812, 813, 821, 822 and 852 numbers: Telkomsel mobile lines in Indonesia

A number starting +62 811, 812, 813, 821, 822, 823, 851, 852 or 853 is an Indonesian mobile number issued by Telkomsel, the country's largest mobile operator. Because Indonesia has no mobile number portability, the prefix still tells you the operator. It does not tell you who the person is or where in Indonesia they live.

Indonesia · Mobile numbers · Facts checked November 9, 2026

What these numbers look like

From abroad: +62 812 XXXX XXXX
Inside Indonesia: 0812-XXXX-XXXX

Inside Indonesia the number starts with 0 (0812...). From abroad the 0 is dropped after +62. Indonesian mobile numbers do not all have the same length, so a number one digit shorter or longer than a friend's is not a sign of fraud on its own.

Who uses Telkomsel (+62 81x, 82x, 85x) numbers?

Mobile number blocks are allocated to operators by Indonesia's Ministry of Communication and Digital Affairs (Komdigi, formerly Kominfo). Telkomsel's own site lists 0811 for Halo postpaid, 0812 and 0813 for Halo or simPATI, 0821 and 0822 for simPATI, 0823, 0852 and 0853 for Kartu As, and 0851 for Kartu As or the former Flexi service. The government portal Indonesia Baik gives the same nine prefixes. Indonesia has not introduced mobile number portability: a September 2026 constitutional court challenge is asking for it, and Komdigi says it will follow the ruling.

Prefix	Operator	Note
0811	Telkomsel	Originally Kartu Halo postpaid
0812, 0813	Telkomsel	Halo or simPATI
0821, 0822	Telkomsel	simPATI
0823, 0852, 0853	Telkomsel	Former Kartu As range
0851	Telkomsel	Kartu As or ex-Flexi numbers

Who is calling you from a Telkomsel (+62 81x, 82x, 85x) number?

Most calls and WhatsApp messages from these prefixes come from ordinary Telkomsel subscribers: family, couriers, marketplace sellers, drivers and hotels. As the biggest operator, Telkomsel numbers also appear most often in unsolicited WhatsApp messages sent abroad. If you know no one in Indonesia and the first message is a job offer, a prize or a file to open, treat it as suspicious.

WhatsApp messages from +62 numbers

Scams seen with Telkomsel (+62 81x, 82x, 85x) numbers

Part-time job task scams: OJK's Satgas PASTI warned in February 2024 that scammers first pay victims small amounts to like and subscribe to social media posts, then add them to a group chat and ask for deposits to unlock bigger 'missions' before disappearing with the money.
Fake courier messages with an APK file: Komdigi's hoax desk documented WhatsApp messages posing as package couriers, including one using J&T Express's name with a file called 'LIHAT Foto Paket'. The file is an Android app, not a photo. J&T said its couriers never ask customers to install apps over WhatsApp.
Fake invitations as APK files: Komdigi flagged a 'digital wedding invitation' app (2023) and fake election (PPS Pemilu 2024) apps sent over WhatsApp. Once installed they request SMS access, which lets attackers read one-time passwords and empty mobile banking accounts.

What to do about a call from Telkomsel (+62 81x, 82x, 85x)

Do not install any .apk file sent over WhatsApp, even if it is labelled as a photo, invoice or invitation, and even if it comes from a contact whose account may have been taken over.
Report the number to Komdigi at aduannomor.id with a screenshot or recording. Komdigi says verified numbers are passed to the operator and blocked within 24 hours.
If you sent money, report it at the Indonesia Anti-Scam Centre (iasc.ojk.go.id), run by OJK. Bank accounts used by scammers can be reported at cekrekening.id.
For job or investment offers, call OJK on 157 to check whether the company is licensed.
Block and report the chat inside WhatsApp.

Check the exact number

A series tells you what kind of line called. To check the full number you got, use these free tools:

Phone number validator: which country, mobile or landline, and whether the length is right.
Spam number checker: warning signs that a caller is a scammer.
Who called me? Reverse phone lookup: what the number tells you about the caller.
Indonesia country code +62: full dialing guide and number formats.
Calling Indonesia from abroad: per-minute rates if you need to call someone there.

Frequently asked questions

Which network is +62 812?

Telkomsel. 0812 is one of Telkomsel's original prefixes, used for Halo postpaid and simPATI prepaid numbers.

Is +62 822 a Telkomsel number?

Yes. 0822 is a Telkomsel prefix, originally used for simPATI prepaid SIM cards.

Can a +62 852 number have moved to another network?

No. Indonesia does not offer mobile number portability, so a 0852 number is still a Telkomsel number.

Why am I getting WhatsApp messages from +62 numbers I don't know?

Indonesian numbers are widely used in task scams and fake job offers sent to people in many countries. If the message offers easy money for liking videos, or sends an APK file, it matches scam patterns documented by OJK and Komdigi.

Sources

Numbering facts on this page come from the regulator or operator sources below, checked November 9, 2026. We never publish individual personal phone numbers.

Telkomsel - Ketahui Perbedaan Kode Area Telkomsel di Nomor HP (prefix list, 20 June 2023) (telkomsel.com)
Indonesia Baik (government portal) - Kenalan Sama Kode Prefix Kartu Seluler di Indonesia (indonesiabaik.id)
detikInet - Ganti Operator Tak Perlu Ganti Nomor HP, Menkomdigi Buka Suara (15 Sep 2026, MNP court petition) (inet.detik.com)
Bisnis.com - Respons Menkomdigi soal usul pindah operator tak perlu ganti nomor (Sep 2026) (teknologi.bisnis.com)
OJK - Satgas PASTI Blokir 311 Pinjol Ilegal dan Pinpri (13 Feb 2024, part-time job scam warning) (ojk.go.id)
Komdigi - [HOAKS] Pesan WhatsApp Pengiriman Paket Mengatasnamakan J&T Express (komdigi.go.id)
Komdigi - [HOAKS] Aplikasi Undangan Pernikahan Digital (komdigi.go.id)
Komdigi - [HOAKS] Pesan WhatsApp Aplikasi PPS Pemilu 2024 (komdigi.go.id)
InfoPublik - Siaran Pers: Kominfo Buka AduanNomor.id (15 Nov 2023) (infopublik.id)
OJK - Soft launching Indonesia Anti-Scam Centre (IASC) (ojk.go.id)