SMS API for United States: bulk SMS to +1 numbers

The United States is a North American country with Washington, D.C. as its capital and New York City as its largest city, known for its diverse economy including technology, finance, and healthcare. Ride-hailing apps, e-commerce platforms, and financial institutions use SMS to communicate with users. Messages are triggered by events like ride arrival notifications, order confirmations, or account security alerts. SMS is chosen because it is universally accessible, works on all devices, and is read quickly by recipients.

United States

Calling code +1

Per SMS segment
$0.00507
Messages for $100
19,723
Local language
English
Encoding
GSM-7

What a bulk SMS send to the United States costs

Every message is priced at $0.00507 per segment to the United States. 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$0.00507$0.01014
1,000$5.07$10.14
10,000$50.70$101.40
100,000$507.00$1,014.00

Number format in United States

The United States uses the North American Numbering Plan: +1, a three-digit area code and a seven-digit number, such as +1 201 555 0123. The API reads the area code (201 here) to price the number as the United States rather than the United States, so keep the full eleven digits in your list.

Alphabet and segments

English text stays inside the GSM-7 alphabet, so one segment to the United States holds 160 characters and each part of a longer text 153. Watch for curly quotes and emoji copied from other tools: one of them moves the whole text to Unicode at 70 characters per segment, and POST /v1/estimates shows the encoding before you send.

Time zone and timing

The United States spans several time zones, from UTC-10 in Adak to UTC-5 in New York (January offsets). A send_at of 14:00 UTC lands at 09:00 in New York in January; for a nationwide reminder, split the list by region and give each batch its own send_at.

Send to United States with one request

The answer comes back at once with the message id, the country the number was matched to (US) 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": "+12015550123", "text": "Your Northwind code is 482913. It expires in 10 minutes."}'

What developers send to the United States

Common integrations that call the SMS API for recipients in the United States.

Ride alerts

Ride-hailing apps in New York City notify users when their driver is arriving or if there are changes to their trip.

Order confirmations

E-commerce platforms in Los Angeles send SMS notifications to customers confirming their online purchases and delivery details.

Security codes

Banks in Chicago send SMS one-time passwords to customers for secure login or transaction verification.

Appointment reminders

Clinics in Houston send SMS reminders to patients about upcoming doctor appointments or test schedules.

SMS to United States: questions

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

How much does it cost to send bulk SMS to the United States?

Each message segment to the United States costs $0.00507. A plain text of up to 160 characters is one segment, so 1,000 one-segment messages cost $5.07 and 10,000 cost $50.70. Failed messages are refunded to the balance.

How many SMS to the United States does a $100 top-up send?

$100 covers about 19,723 one-segment messages to the United States at $0.00507 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 United States numbers for the API?

Send them in international format with the plus sign: +1 201 555 0123 becomes "+12015550123" 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.

Should SMS messages in the US be in English only?

English is the primary language for SMS, but Spanish can also be used for messages targeting Spanish-speaking communities in regions like California or Texas.

Are there peak times for SMS traffic in the US?

SMS traffic increases during holidays like Thanksgiving and Christmas, when businesses send greetings and promotions. It also peaks during sales events like Black Friday.

Start sending to The United States

Create an account, top up from $40 and send to the United States at $0.00507 per segment, from the console or with one API call.

SMS API United States: Bulk SMS to +1 From $0.00507 | BulkSMSAPI