Understanding Twilio phone number cost is essential before building any SMS or voice application. Twilio offers several types of phone numbers—each with different monthly fees, capabilities, and use cases. This guide breaks down all Twilio phone number pricing so you can plan your communication budget accurately.
Types of Twilio Phone Numbers and Their Costs
Local Phone Numbers
Cost: ~$1.15/month (US)
Local US phone numbers come with a local area code and support both voice and SMS. They’re the most common choice for businesses wanting a local presence. International local numbers vary by country—typically $1–$5/month.
Toll-Free Numbers
Cost: ~$2.15/month (US)
Toll-free numbers (800, 833, 844, 855, 866, 877, 888 prefixes) allow callers to reach you without incurring charges. Higher inbound call rates apply (~$0.022/minute vs $0.0085/minute for local). Good for customer service lines where caller cost is a concern.
Short Codes
Cost: ~$1,000/month (US Shared) or $500/month (Dedicated)
Short codes are 5–6 digit numbers used for high-volume SMS campaigns. They have the highest throughput (100 messages/second vs 1/second for long codes) and highest deliverability. Required for mass marketing SMS. The provisioning process takes 8–12 weeks.
10DLC Numbers (Long Codes with A2P Registration)
Cost: $1.15/month + $4/month per campaign (Brand registration: $4 one-time)
10DLC (10-Digit Long Code) is the US standard for business SMS. Standard local numbers must be registered under 10DLC for A2P (Application-to-Person) messaging. The registration process involves verifying your brand and specific use case for each messaging campaign.
International Numbers
Cost: Varies by country, typically $1–$10/month
Twilio offers phone numbers in 100+ countries. UK numbers from ~$1.50/month, Australian numbers ~$3/month. Check Twilio’s pricing page for specific country rates.
Additional Number-Related Costs
| Feature | Cost |
|---|---|
| CNAM (Caller Name Display) | $0.004/lookup |
| Phone Number Porting (inbound) | Free |
| 10DLC Brand Registration | $4 one-time |
| 10DLC Campaign Registration | $4/month/campaign |
Choosing the Right Number Type
Use local numbers when: You want a local presence, your volume is moderate (<1 message/second), and you’re compliant with 10DLC registration requirements.
Uses toll-free when: Your callers are in the US and you want to eliminate their call cost, or you need moderate-volume SMS without short code setup time.
Use short codes when: You’re sending mass marketing SMS campaigns at high volume (>100,000 messages/month) and need maximum deliverability and throughput.
Tips to Minimize Twilio Phone Number Costs
- Release unused numbers immediately—you’re billed monthly for every active number
- Use one number for multiple use cases where possible (same number for voice + SMS)
- Consider shared short codes for lower-volume campaigns (though carrier support is changing)
- Audit your Twilio account quarterly for inactive numbers accumulating costs
FAQ
How much does a Twilio phone number cost per month?
A US local Twilio phone number costs approximately $1.15/month. Toll-free numbers cost ~$2.15/month. Short codes cost $500–$1,000/month. International numbers vary from $1–$10+/month depending on country. All numbers also incur per-minute or per-message usage charges.
Does Twilio offer free phone numbers?
New Twilio accounts receive a free trial number included with the $15.50 trial credit. After the trial, all phone numbers have monthly fees. There is no ongoing free number tier.
What is 10DLC and why does it affect Twilio SMS costs?
10DLC (10-Digit Long Code) is the US carrier framework for business SMS. All businesses sending A2P SMS on local long codes must register their brand ($4 one-time) and campaign ($4/month/campaign). This adds a small monthly cost but improves deliverability and compliance with US carrier requirements.
Can I port an existing phone number to Twilio?
Yes—Twilio supports number porting for US and many international numbers. Porting is free. The process typically takes 2–4 weeks for US numbers. Your existing number retains its history and caller recognition during and after the port.
Conclusion
Understanding Twilio phone number cost ensures your communication budget is planned accurately. With local numbers at $1.15/month and pay-as-you-go usage charges, Twilio remains one of the most cost-effective ways to add professional phone capabilities to any application.
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