Get Virtual Phone Numbers in Semarang
Only $49.95 per month *
Semarang, the capital of Central Java, is a historic port city of roughly 1.7 million people, with around 6 million across the wider Kedungsepur metropolitan region on Java's north coast.
From its Dutch-era old town to the container cranes of Tanjung Emas, Semarang links Central Java's factories and farms to the world — and a local number with the 24 prefix links your business to Semarang, from any device or software.
Make and receive calls with your Semarang phone number
FlyNumber SIP gives your Semarang number its own credentials for any SIP calling app from the app stores — Zoiper, Groundwire, Linphone and more — or a desk phone.
- Incoming calls included in the number's monthly rate
- Outgoing calls billed per minute, with your Semarang number as the caller ID
- Up to 5 devices — phone, desktop and desk phone ring together
- Voicemail built in
Features
- Shipping through Tanjung Emas or the Kendal industrial estate? Forward your Semarang number to your logistics coordinator anywhere in the world.
- Welcome heritage tourists exploring Kota Lama with a friendly call menu for tours, tickets, and information.
- Route calls based on day and time — business hours to your Simpang Lima storefront, evenings to a mobile — with our call routing options.
- Automatically save customer calls, voicemails, and greetings to the cloud with our cloud phone system.
- Point your Semarang virtual number to any VoIP solution like Asterisk, FreePBX, or 3CX.
Use any device or software
Any device can be used to make and receive calls with your FlyNumber.
Prefer to skip third-party providers? FlyNumber SIP gives you your own SIP credentials — register any SIP app or desk phone and make and receive calls with just your FlyNumber.
- Any SIP or VoIP app on iOS or Android
- Mac, PC, or Linux computer
- Desktop office phone
- Any regular phone number (to receive calls)
- 3rd party VoIP solutions
Call like a local, pay like a local
In many cases if you make outgoing calls to an Indonesia phone number using an Indonesia FlyNumber as the caller-ID the rate is significantly cheaper.
- The rate is sometimes 10x cheaper so if you call a certain country often, it pays to get a FlyNumber from there.
- Anytime you make outgoing calls with FlyNumber (via FlyNumber SIP or the optional phone system) there is a low per minute rate.
- You can make outgoing calls with FlyNumber SIP or from the optional phone system.
- More details on the phone system billing can be found in our docs.
FAQ’s
Are there registration requirements for Semarang phone numbers?
Yes, Indonesia requires identity and address verification — an Indonesian passport or ID copy (businesses provide an Indonesian incorporation certificate), an address in Indonesia with a utility bill less than 6 months old, and a brief description of how you'll use the number. The number shown during signup is a demo; your active number is assigned once registration is complete. Please see the main Indonesia page for full details.
Can I get SMS on my Semarang virtual phone number?
Unfortunately Semarang, ID numbers do not come with SMS capabilities at the moment. This can change at any time, so follow us on social media for updates. Full list of SMS enabled numbers here.
We supply factories in the Semarang-Kendal corridor — why a local number?
Central Java's manufacturing belt does business locally, and procurement teams are far more likely to dial an 024 number than an international one. Your Semarang FlyNumber can ring straight through to your sales engineers wherever they sit — via FlyNumber SIP in any SIP calling app, or call forwarding.
Can I run a booking line for Kota Lama heritage tours with this number?
Absolutely. Pair the number with our cloud phone system for an IVR menu (press 1 for reservations, 2 for group tours), call queues on busy weekends, and automatic recordings so no booking detail is lost.
Can I use the Semarang number to call customers back?
Yes. With the optional cloud phone system you can make outgoing calls showing your Semarang number as the caller ID, via the free app or a SIP account. A low per-minute rate applies.
What happens if I move my office within Central Java?
Nothing changes — your FlyNumber isn't tied to a physical line. Move offices, switch devices, or change your forwarding destination anytime from the FlyNumber panel, and callers keep dialing the same Semarang number.
A genuine Semarang ID phone number
Semarang uses the area code 24, covering the city and nearby areas such as Ungaran to the south — the administrative and commercial core of Central Java.
From abroad, dial +62 24 followed by the local number; within Indonesia, callers dial 024 first. It's the prefix Central Javans know as their provincial capital's code.
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Unlimited incoming
Answer over the internet and incoming calls are unlimited, included in the Semarang number's monthly price.
Use FlyNumber SIP with any SIP app or desk phone, or forward to a SIP / VoIP address: your own PBX, a VoIP provider, or an AI voice platform like LiveKit or VAPI.
Forward to any regular phone number
For an additional low per min rate, you can forward the Semarang FlyNumber calls to any regular phone number in the world.
Use our cloud PBX system (optional) for increased flexibility:
Use cases
Over the years we've seen our FlyNumbers used in a multitude of ways:
- Use the Semarang number as a 2nd phone line/phone number
- Anonymize your personal mobile phone number
- Separate business and personal calls
- For your "Contact Us" page
- Give friends/family a local phone number to reach you on
- Use the Semarang, ID FlyNumber for applications or forms (both online and offline)
Optional Cloud Phone System
Configure your call flow with our intuitive "drag and drop" grid canvas.
Local info you may want to know
Semarang's history reads like a trade route. Chinese admiral Zheng He (Cheng Ho) is commemorated at the Sam Poo Kong temple, said to mark his 15th-century landing; the Dutch left behind Kota Lama — the "Little Netherlands" old town centered on the domed Blenduk Church — and the railway era produced Lawang Sewu, the "building of a thousand doors" that once headquartered the Dutch East Indies railway company.
Modern Semarang is one of Java's key logistics and manufacturing centers: the Port of Tanjung Emas handles Central Java's exports, and industrial estates around the city (including the fast-growing Kendal special economic zone next door) host furniture, garment, and electronics producers. Simpang Lima square anchors the retail heart of the city.
And ask any Indonesian about Semarang food — the city's lumpia (spring rolls) are famous nationwide, a legacy of its blended Chinese-Javanese heritage.
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Check out our main Indonesia page here.
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Pay per phone number, not per user
No setup fee on most numbers.
Never any contracts or obligations, cancel anytime.
Turn on Auto-Renew — each renewal is a one-time charge — or add funds manually.
*Monthly price for the number includes unlimited incoming minutes when you answer with FlyNumber SIP or VoIP.
Additional rates apply when you forward to a regular phone number or make outgoing calls (via FlyNumber SIP or the optional cloud phone system).