SMS API for Guinea-Bissau: bulk SMS to +245 numbers

Guinea-Bissau, located in West Africa, has Bissau as its capital and an economy driven by agriculture and fishing. Businesses such as mobile money services, healthcare providers, and NGOs send SMS messages to their customers. These messages are triggered by events like payment confirmations, appointment reminders, or health alerts. SMS is chosen because it reaches all mobile phones, including basic devices, and is widely read quickly, even in rural areas.

Guinea-Bissau

Calling code +245

Per SMS segment
$0.01557
Messages for $100
6,422
Local language
Portuguese
Encoding
GSM-7 or Unicode

What a bulk SMS send to Guinea-Bissau costs

Every message is priced at $0.01557 per segment to Guinea-Bissau. Texts over 160 GSM-7 or 70 Unicode characters are split into segments, so a two-segment text costs twice as much.
Messages1 segment2 segments
1$0.01557$0.03114
1,000$15.57$31.14
10,000$155.70$311.40
100,000$1,557.00$3,114.00

Number format in Guinea-Bissau

Mobile numbers in Guinea-Bissau have 9 digits after +245 and no trunk prefix, so the local form 955 012 345 becomes +245 955 012 345 in the to field.

Alphabet and segments

Texts in Portuguese fit 160 GSM-7 characters per segment until they use á, â, ã, ç, ê, í, ó, ô, õ and ú: those letters are outside GSM-7 and turn the message into Unicode at 70 characters per segment (67 per part). For short alerts, write them without those letters to keep one segment; for longer texts, the console names each letter that changed the encoding.

Time zone and timing

Guinea-Bissau keeps UTC+0 all year with no clock change, so 09:00 in Bissau is always 09:00 UTC. send_at takes UTC or any ISO 8601 offset, and the console scheduler converts from your own time zone.

Send to Guinea-Bissau with one request

The answer comes back at once with the message id, the country the number was matched to (GW) and the price. A delivered or failed event follows on your webhook, and a failed message is refunded.

For a list, send the same text to up to 10,000 numbers with POST /v1/batches, or a personal text per number in messages.

curl https://bulksmsapi.cc/v1/messages \
  -H "Authorization: Bearer $BULKSMSAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to": "+245955012345", "text": "Your Northwind code is 482913. It expires in 10 minutes."}'

What developers send to Guinea-Bissau

Common integrations that call the SMS API for recipients in Guinea-Bissau.

Payment confirmations

Mobile money services in Bissau send SMS alerts to users confirming successful transactions or transfers.

Appointment reminders

Clinics in Gabú notify patients about upcoming medical appointments to reduce no-shows.

Health alerts

NGOs in Bafatá send SMS notifications about vaccination campaigns or disease prevention tips.

Service updates

Utility providers in Cacheu notify customers about planned outages or maintenance work.

SMS to Guinea-Bissau: questions

More answers on accounts, payments and the API are in the FAQ.

How much does it cost to send bulk SMS to Guinea-Bissau?

Each message segment to Guinea-Bissau costs $0.01557. A plain text of up to 160 characters is one segment, so 1,000 one-segment messages cost $15.57 and 10,000 cost $155.70. Failed messages are refunded to the balance.

How many SMS to Guinea-Bissau does a $100 top-up send?

$100 covers about 6,422 one-segment messages to Guinea-Bissau at $0.01557 each. The first top-up adds a bonus on top, which raises that number. The balance is shared by every country, so the same top-up also pays for messages anywhere else on the list.

How do I write Guinea-Bissau numbers for the API?

Send them in international format with the plus sign: +245 955 012 345 becomes "+245955012345" in the to field. The API also accepts spaces, dashes and a 00 prefix and cleans them, and numbers that cannot be read are listed in set_aside instead of being charged.

Which language should SMS messages be sent in?

Portuguese is the official language, while Crioulo is widely spoken and understood.

How can SMS reach rural areas effectively?

SMS works well in rural regions like Quinara, where mobile penetration is high, and internet access is limited.

Start sending to Guinea-Bissau

Create an account, top up from $40 and send to Guinea-Bissau at $0.01557 per segment, from the console or with one API call.

SMS API Guinea-Bissau: Bulk SMS to +245 From $0.01557 | BulkSMSAPI