def create(self, friendly_name, ip_address, cidr_prefix_length=values.unset):
data = values.of({<EOL>'<STR_LIT>': friendly_name,<EOL>'<STR_LIT>': ip_address,<EOL>'<STR_LIT>': cidr_prefix_length,<EOL>})<EOL>payload = self._version.create(<EOL>'<STR_LIT:POST>',<EOL>self._uri,<EOL>data=data,<EOL>)<EOL>return IpAddressInstance(<EOL>self._version,<EOL>payload,<EOL>account_sid=self._solution['<STR_LIT>'],<EOL>ip_access_control_list_sid=self._solution['<STR_LIT>'],<EOL>)<EOL>
Create a new IpAddressInstance

:param unicode friendly_name: A human readable descriptive text for this resource, up to 64 characters long.
:param unicode ip_address: An IP address in dotted decimal notation from which you want to accept traffic. Any SIP requests from this IP address will be allowed by Twilio. IPv4 only supported today.
:param unicode cidr_prefix_length: An integer representing the length of the CIDR prefix to use with this IP address when accepting traffic. By default the entire IP address is used.

:returns: Newly created IpAddressInstance
:rtype: twilio.rest.api.v2010.account.sip.ip_access_control_list.ip_address.IpAddressInstance