Objective

This article helps you add another IP address or network range to an existing IP access control list, so traffic from a new office, data centre, or host is allowed.

Product

Programmable Voice

Environment

Twilio Console

User Account Permission/Role(s) Required

Your user must have permission to update Voice SIP IP access control lists on the account.

Procedure

1. In the Twilio Console, select Communications in the left sidebar.
2. Select Voice, then SIP domains.
3. Select the IP access control lists tab, then select the friendly name of the list you want to extend.
4. In the IP Address Ranges section, select Create IP Address.
5. In Create a new IP address range, enter an IP Address Range friendly name to identify the range.
6. Enter the CIDR network address.
7. Choose a Range value, or leave it at the default 32 to allow a single IP address.
8. Select Create.
9. An IP address range created confirmation appears, the panel closes, and the new range appears in the table alongside its friendly name.

Additional Information

• The friendly name is optional; the CIDR network address is required. Submitting without it shows "CIDR network address is required".
• An invalid address — an out-of-range value such as 999.999.999.999, or an address with only three parts — shows "Please enter a valid IP address." Correcting the value clears the message.
• An IP access control list may hold up to 100 IP addresses in total across its ranges.
• Select Cancel to close the panel without adding a range.
• If the range cannot be created, Error creating IP address range appears and nothing is added.

This content was generated by AI and reviewed, edited, and verified by a human.