The SID of the [Account](https://www.twilio.com/docs/iam/api/account) requesting the AvailablePhoneNumber resources.

The [ISO-3166-1](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) country code of the country from which to read phone numbers.

The area code of the phone numbers to read. Applies to only phone numbers in the US and Canada.

Matching pattern to identify phone numbers. This pattern can be between 2 and 16 characters long and allows all digits (0-9) and all non-diacritic latin alphabet letters (a-z, A-Z). It accepts four meta-characters: `*`, `%`, `+`, `$`. The `*` and `%` meta-characters can appear multiple times in the pattern. To match wildcards at the beginning or end of the pattern, use `*` to match any single character or `%` to match a sequence of characters. If you use the wildcard patterns, it must include at least two non-meta-characters, and wildcards cannot be used between non-meta-characters. To match the beginning of a pattern, start the pattern with `+`. To match the end of the pattern, append the pattern with `$`. These meta-characters can't be adjacent to each other.

Whether the phone numbers can receive text messages. Can be: `true` or `false`.

Whether the phone numbers can receive MMS messages. Can be: `true` or `false`.

Whether the phone numbers can receive calls. Can be: `true` or `false`.

Whether to exclude phone numbers that require an [Address](https://www.twilio.com/docs/usage/api/address). Can be: `true` or `false` and the default is `false`.

Whether to exclude phone numbers that require a local [Address](https://www.twilio.com/docs/usage/api/address). Can be: `true` or `false` and the default is `false`.

Whether to exclude phone numbers that require a foreign [Address](https://www.twilio.com/docs/usage/api/address). Can be: `true` or `false` and the default is `false`.

Whether to read phone numbers that are new to the Twilio platform. Can be: `true` or `false` and the default is `true`.

Given a phone number, find a geographically close number within `distance` miles. Distance defaults to 25 miles. Applies to only phone numbers in the US and Canada.

Given a latitude/longitude pair `lat,long` find geographically close numbers within `distance` miles. Applies to only phone numbers in the US and Canada.

The search radius, in miles, for a `near_` query. Can be up to `500` and the default is `25`. Applies to only phone numbers in the US and Canada.

Limit results to a particular postal code. Given a phone number, search within the same postal code as that number. Applies to only phone numbers in the US and Canada.

Limit results to a particular region, state, or province. Given a phone number, search within the same region as that number. Applies to only phone numbers in the US and Canada.

Limit results to a specific rate center, or given a phone number search within the same rate center as that number. Requires `in_lata` to be set as well. Applies to only phone numbers in the US and Canada.

Limit results to a specific local access and transport area ([LATA](https://en.wikipedia.org/wiki/Local_access_and_transport_area)). Given a phone number, search within the same [LATA](https://en.wikipedia.org/wiki/Local_access_and_transport_area) as that number. Applies to only phone numbers in the US and Canada.

Limit results to a particular locality or city. Given a phone number, search within the same Locality as that number.

Whether the phone numbers can receive faxes. Can be: `true` or `false`.

How many resources to return in each list page. The default is 50, and the maximum is 1000.

The page index. This value is simply for client state.

The page token. This is provided by the API.