Overview

Twilio customers may encounter restrictions when attempting to place outbound calls to special services number ranges in various countries. These ranges often include prefixes associated with business, government, or premium-rate services. This article explains Twilio’s policy, limitations, and what customers can expect regarding selective enablement of such number ranges.

Environment

Twilio Console

What You Need To Know

Customers sometimes wish to enable outbound calls to only a specific prefix within a special services group, without enabling the entire group. This is typically requested to control costs or comply with business requirements, as some prefixes within the group may be expensive to call.

Twilio’s geo-permissions and special services controls are designed to comply with local regulations and operational requirements. As a result, special services prefixes are grouped together. Enabling calls to one prefix within a group requires enabling the entire group, which may include other prefixes.

Solution

At this time, Twilio does not support enabling only individual prefixes within a special services number group. The entire group must be enabled, and selective enablement of individual prefixes is not possible.

Impact

• Customers cannot enable only a single prefix within a special services group; enabling one will also allow calls to all grouped prefixes.

• This may result in higher costs if calls are placed to other numbers within the group.

   

Frequently Asked Questions

Can I enable only a specific prefix for outbound calls?

No, Twilio does not support selective enablement of individual prefixes within special services number groups.

Why are these prefixes grouped together?

The grouping is required for regulatory and operational reasons, and cannot be changed on a per-account basis.

What can I do to control costs?

Monitor your outbound call usage and review the enabled number ranges in your account’s geo-permissions settings.

Conclusion

• There are no configuration workarounds or exceptions available at this time.
• The grouping is enforced for regulatory and operational reasons.
• Customers should review their outbound calling permissions and monitor usage to manage costs.

If you have further questions, please reach out for assistance.