Telnyx Numbers - Go

Installation

bash

go get github.com/team-telnyx/telnyx-go

Setup

import (
  "context"
  "fmt"
  "os"

  "github.com/team-telnyx/telnyx-go"
  "github.com/team-telnyx/telnyx-go/option"
)

client := telnyx.NewClient(
  option.WithAPIKey(os.Getenv("TELNYX_API_KEY")),
)

All examples below assume

client

is already initialized as shown above.

Error Handling

All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:

import "errors"

availablePhoneNumbers, err := client.AvailablePhoneNumbers.List(context.Background(), telnyx.AvailablePhoneNumberListParams{})
if err != nil {
  var apiErr *telnyx.Error
  if errors.As(err, &apiErr) {
    switch apiErr.StatusCode {
    case 422:
      fmt.Println("Validation error — check required fields and formats")
    case 429:
      fmt.Println("Rate limited, retrying...")
    default:
      fmt.Printf("API error %d: %s\n", apiErr.StatusCode, apiErr.Error())
    }
  } else {
    fmt.Println("Network error — check connectivity and retry")
  }
}

Common error codes:

invalid API key,

insufficient permissions,

resource not found,

validation error (check field formats),

rate limited (retry with exponential backoff).

Important Notes

Phone numbers must be in E.164 format (e.g.,
```
+13125550001
```
). Include the
```
+
```
prefix and country code. No spaces, dashes, or parentheses.

Pagination: Use

ListAutoPaging()

for automatic iteration:

iter := client.Resource.ListAutoPaging(ctx, params); for iter.Next() { item := iter.Current() }

Reference Use Rules

Do not invent Telnyx parameters, enums, response fields, or webhook fields.

If the parameter, enum, or response field you need is not shown inline in this skill, read references/api-details.md before writing code.
Before using any operation in
```
## Additional Operations
```
, read the optional-parameters section and the response-schemas section.

Core Tasks

Search available phone numbers

Number search is the entrypoint for provisioning. Agents need the search method, key query filters, and the fields returned for candidate numbers.

client.AvailablePhoneNumbers.List()

—

GET /available_phone_numbers

Parameter	Type	Required	Description
`Filter`	object	No	Consolidated filter parameter (deepObject style).

	availablePhoneNumbers, err := client.AvailablePhoneNumbers.List(context.Background(), telnyx.AvailablePhoneNumberListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", availablePhoneNumbers.Data)

Response wrapper:

items:
```
availablePhoneNumbers.data
```
pagination:
```
availablePhoneNumbers.meta
```

Primary item fields:

```
PhoneNumber
```
```
RecordType
```
```
Quickship
```
```
Reservable
```
```
BestEffort
```
```
CostInformation
```

Create a number order

Number ordering is the production provisioning step after number selection.

client.NumberOrders.New()

—

POST /number_orders

Parameter	Type	Required	Description
`PhoneNumbers`	array[object]	Yes
`ConnectionId`	string (UUID)	No	Identifies the connection associated with this phone number.
`MessagingProfileId`	string (UUID)	No	Identifies the messaging profile associated with the phone n...
`BillingGroupId`	string (UUID)	No	Identifies the billing group associated with the phone numbe...
...			+1 optional params in references/api-details.md

	numberOrder, err := client.NumberOrders.New(context.Background(), telnyx.NumberOrderNewParams{
		PhoneNumbers: []telnyx.NumberOrderNewParamsPhoneNumber{{PhoneNumber: "+18005550101"}},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberOrder.Data)

Primary response fields:

```
numberOrder.Data.ID
```
```
numberOrder.Data.Status
```
```
numberOrder.Data.PhoneNumbersCount
```
```
numberOrder.Data.RequirementsMet
```
```
numberOrder.Data.MessagingProfileID
```
```
numberOrder.Data.ConnectionID
```

Check number order status

Order status determines whether provisioning completed or additional requirements are still blocking fulfillment.

client.NumberOrders.Get()

—

GET /number_orders/{number_order_id}

Parameter	Type	Required	Description
`NumberOrderId`	string (UUID)	Yes	The number order ID.

	numberOrder, err := client.NumberOrders.Get(context.Background(), "number_order_id")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberOrder.Data)

Primary response fields:

```
numberOrder.Data.ID
```
```
numberOrder.Data.Status
```
```
numberOrder.Data.RequirementsMet
```
```
numberOrder.Data.PhoneNumbersCount
```
```
numberOrder.Data.PhoneNumbers
```
```
numberOrder.Data.ConnectionID
```

Important Supporting Operations

Use these when the core tasks above are close to your flow, but you need a common variation or follow-up step.

Create a number reservation

Create or provision an additional resource when the core tasks do not cover this flow.

client.NumberReservations.New()

—

POST /number_reservations

Parameter	Type	Required	Description
`PhoneNumbers`	array[object]	Yes
`Status`	enum (pending, success, failure)	No	The status of the entire reservation.
`Id`	string (UUID)	No
`RecordType`	string	No
...			+3 optional params in references/api-details.md

	numberReservation, err := client.NumberReservations.New(context.Background(), telnyx.NumberReservationNewParams{
		PhoneNumbers: []telnyx.NumberReservationNewParamsPhoneNumber{{PhoneNumber: "+18005550101"}},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberReservation.Data)

Primary response fields:

```
numberReservation.Data.ID
```
```
numberReservation.Data.Status
```
```
numberReservation.Data.CreatedAt
```
```
numberReservation.Data.UpdatedAt
```

numberReservation.Data.CustomerReference

```
numberReservation.Data.Errors
```

Retrieve a number reservation

Fetch the current state before updating, deleting, or making control-flow decisions.

client.NumberReservations.Get()

—

GET /number_reservations/{number_reservation_id}

Parameter	Type	Required	Description
`NumberReservationId`	string (UUID)	Yes	The number reservation ID.

	numberReservation, err := client.NumberReservations.Get(context.Background(), "number_reservation_id")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", numberReservation.Data)

Primary response fields:

```
numberReservation.Data.ID
```
```
numberReservation.Data.Status
```
```
numberReservation.Data.CreatedAt
```
```
numberReservation.Data.UpdatedAt
```

numberReservation.Data.CustomerReference

```
numberReservation.Data.Errors
```

List Advanced Orders

Inspect available resources or choose an existing resource before mutating it.

client.AdvancedOrders.List()

—

GET /advanced_orders

	advancedOrders, err := client.AdvancedOrders.List(context.Background())
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrders.Data)

Response wrapper:

items:
```
advancedOrders.data
```

Primary item fields:

```
ID
```
```
Status
```
```
AreaCode
```
```
Comments
```
```
CountryCode
```
```
CustomerReference
```

Create Advanced Order

Create or provision an additional resource when the core tasks do not cover this flow.

client.AdvancedOrders.New()

—

POST /advanced_orders

Parameter	Type	Required	Description
`PhoneNumberType`	enum (local, mobile, toll_free, shared_cost, national, ...)	No
`RequirementGroupId`	string (UUID)	No	The ID of the requirement group to associate with this advan...
`CountryCode`	string (ISO 3166-1 alpha-2)	No
...			+5 optional params in references/api-details.md

	advancedOrder, err := client.AdvancedOrders.New(context.Background(), telnyx.AdvancedOrderNewParams{
		AdvancedOrder: telnyx.AdvancedOrderParam{},
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrder.ID)

Primary response fields:

```
advancedOrder.ID
```
```
advancedOrder.Status
```
```
advancedOrder.AreaCode
```
```
advancedOrder.Comments
```
```
advancedOrder.CountryCode
```
```
advancedOrder.CustomerReference
```

Update Advanced Order

Modify an existing resource without recreating it.

client.AdvancedOrders.UpdateRequirementGroup()

—

PATCH /advanced_orders/{advanced-order-id}/requirement_group

Parameter	Type	Required	Description
`Advanced-order-id`	string (UUID)	Yes
`PhoneNumberType`	enum (local, mobile, toll_free, shared_cost, national, ...)	No
`RequirementGroupId`	string (UUID)	No	The ID of the requirement group to associate with this advan...
`CountryCode`	string (ISO 3166-1 alpha-2)	No
...			+5 optional params in references/api-details.md

	response, err := client.AdvancedOrders.UpdateRequirementGroup(
		context.Background(),
		"182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
		telnyx.AdvancedOrderUpdateRequirementGroupParams{
			AdvancedOrder: telnyx.AdvancedOrderParam{},
		},
	)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", response.ID)

Primary response fields:

```
response.ID
```
```
response.Status
```
```
response.AreaCode
```
```
response.Comments
```
```
response.CountryCode
```
```
response.CustomerReference
```

Get Advanced Order

Fetch the current state before updating, deleting, or making control-flow decisions.

client.AdvancedOrders.Get()

—

GET /advanced_orders/{order_id}

Parameter	Type	Required	Description
`OrderId`	string (UUID)	Yes

	advancedOrder, err := client.AdvancedOrders.Get(context.Background(), "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", advancedOrder.ID)

Primary response fields:

```
advancedOrder.ID
```
```
advancedOrder.Status
```
```
advancedOrder.AreaCode
```
```
advancedOrder.Comments
```
```
advancedOrder.CountryCode
```
```
advancedOrder.CustomerReference
```

List available phone number blocks

Inspect available resources or choose an existing resource before mutating it.

client.AvailablePhoneNumberBlocks.List()

—

GET /available_phone_number_blocks

Parameter	Type	Required	Description
`Filter`	object	No	Consolidated filter parameter (deepObject style).

	availablePhoneNumberBlocks, err := client.AvailablePhoneNumberBlocks.List(context.Background(), telnyx.AvailablePhoneNumberBlockListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", availablePhoneNumberBlocks.Data)

Response wrapper:

items:
```
availablePhoneNumberBlocks.data
```
pagination:
```
availablePhoneNumberBlocks.meta
```

Primary item fields:

```
PhoneNumber
```
```
CostInformation
```
```
Features
```
```
Range
```
```
RecordType
```
```
RegionInformation
```

Retrieve all comments

Inspect available resources or choose an existing resource before mutating it.

client.Comments.List()

—

GET /comments

Parameter	Type	Required	Description
`Filter`	object	No	Consolidated filter parameter (deepObject style).

	comments, err := client.Comments.List(context.Background(), telnyx.CommentListParams{})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%+v\n", comments.Data)

Response wrapper:

items:
```
comments.data
```
pagination:
```
comments.meta
```

Primary item fields:

```
ID
```
```
Body
```
```
CreatedAt
```
```
UpdatedAt
```
```
CommentRecordID
```
```
CommentRecordType
```

Additional Operations

Use the core tasks above first. The operations below are indexed here with exact SDK methods and required params; use references/api-details.md for full optional params, response schemas, and lower-frequency webhook payloads. Before using any operation below, read the optional-parameters section and the response-schemas section so you do not guess missing fields.

Operation	SDK method	Endpoint	Use when	Required params
Create a comment	`client.Comments.New()`	`POST /comments`	Create or provision an additional resource when the core tasks do not cover this flow.	None
Retrieve a comment	`client.Comments.Get()`	`GET /comments/{id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`Id`
Mark a comment as read	`client.Comments.MarkAsRead()`	`PATCH /comments/{id}/read`	Modify an existing resource without recreating it.	`Id`
Get country coverage	`client.CountryCoverage.Get()`	`GET /country_coverage`	Inspect available resources or choose an existing resource before mutating it.	None
Get coverage for a specific country	`client.CountryCoverage.GetCountry()`	`GET /country_coverage/countries/{country_code}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`CountryCode`
List customer service records	`client.CustomerServiceRecords.List()`	`GET /customer_service_records`	Inspect available resources or choose an existing resource before mutating it.	None
Create a customer service record	`client.CustomerServiceRecords.New()`	`POST /customer_service_records`	Create or provision an additional resource when the core tasks do not cover this flow.	None
Verify CSR phone number coverage	`client.CustomerServiceRecords.VerifyPhoneNumberCoverage()`	`POST /customer_service_records/phone_number_coverages`	Create or provision an additional resource when the core tasks do not cover this flow.	None
Get a customer service record	`client.CustomerServiceRecords.Get()`	`GET /customer_service_records/{customer_service_record_id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`CustomerServiceRecordId`
List inexplicit number orders	`client.InexplicitNumberOrders.List()`	`GET /inexplicit_number_orders`	Inspect available resources or choose an existing resource before mutating it.	None
Create an inexplicit number order	`client.InexplicitNumberOrders.New()`	`POST /inexplicit_number_orders`	Create or provision an additional resource when the core tasks do not cover this flow.	`OrderingGroups`
Retrieve an inexplicit number order	`client.InexplicitNumberOrders.Get()`	`GET /inexplicit_number_orders/{id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`Id`
Create an inventory coverage request	`client.InventoryCoverage.List()`	`GET /inventory_coverage`	Inspect available resources or choose an existing resource before mutating it.	None
List mobile network operators	`client.MobileNetworkOperators.List()`	`GET /mobile_network_operators`	Inspect available resources or choose an existing resource before mutating it.	None
List network coverage locations	`client.NetworkCoverage.List()`	`GET /network_coverage`	Inspect available resources or choose an existing resource before mutating it.	None
List number block orders	`client.NumberBlockOrders.List()`	`GET /number_block_orders`	Inspect available resources or choose an existing resource before mutating it.	None
Create a number block order	`client.NumberBlockOrders.New()`	`POST /number_block_orders`	Create or provision an additional resource when the core tasks do not cover this flow.	`StartingNumber` , `Range`
Retrieve a number block order	`client.NumberBlockOrders.Get()`	`GET /number_block_orders/{number_block_order_id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`NumberBlockOrderId`
Retrieve a list of phone numbers associated to orders	`client.NumberOrderPhoneNumbers.List()`	`GET /number_order_phone_numbers`	Inspect available resources or choose an existing resource before mutating it.	None
Retrieve a single phone number within a number order.	`client.NumberOrderPhoneNumbers.Get()`	`GET /number_order_phone_numbers/{number_order_phone_number_id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`NumberOrderPhoneNumberId`
Update requirements for a single phone number within a number order.	`client.NumberOrderPhoneNumbers.UpdateRequirements()`	`PATCH /number_order_phone_numbers/{number_order_phone_number_id}`	Modify an existing resource without recreating it.	`NumberOrderPhoneNumberId`
List number orders	`client.NumberOrders.List()`	`GET /number_orders`	Create or inspect provisioning orders for number purchases.	None
Update a number order	`client.NumberOrders.Update()`	`PATCH /number_orders/{number_order_id}`	Modify an existing resource without recreating it.	`NumberOrderId`
List number reservations	`client.NumberReservations.List()`	`GET /number_reservations`	Inspect available resources or choose an existing resource before mutating it.	None
Extend a number reservation	`client.NumberReservations.Actions.Extend()`	`POST /number_reservations/{number_reservation_id}/actions/extend`	Trigger a follow-up action in an existing workflow rather than creating a new top-level resource.	`NumberReservationId`
Retrieve the features for a list of numbers	`client.NumbersFeatures.New()`	`POST /numbers_features`	Create or provision an additional resource when the core tasks do not cover this flow.	`PhoneNumbers`
Lists the phone number blocks jobs	`client.PhoneNumberBlocks.Jobs.List()`	`GET /phone_number_blocks/jobs`	Inspect available resources or choose an existing resource before mutating it.	None
Deletes all numbers associated with a phone number block	`client.PhoneNumberBlocks.Jobs.DeletePhoneNumberBlock()`	`POST /phone_number_blocks/jobs/delete_phone_number_block`	Create or provision an additional resource when the core tasks do not cover this flow.	`PhoneNumberBlockId`
Retrieves a phone number blocks job	`client.PhoneNumberBlocks.Jobs.Get()`	`GET /phone_number_blocks/jobs/{id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`Id`
List sub number orders	`client.SubNumberOrders.List()`	`GET /sub_number_orders`	Inspect available resources or choose an existing resource before mutating it.	None
Retrieve a sub number order	`client.SubNumberOrders.Get()`	`GET /sub_number_orders/{sub_number_order_id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`SubNumberOrderId`
Update a sub number order's requirements	`client.SubNumberOrders.Update()`	`PATCH /sub_number_orders/{sub_number_order_id}`	Modify an existing resource without recreating it.	`SubNumberOrderId`
Cancel a sub number order	`client.SubNumberOrders.Cancel()`	`PATCH /sub_number_orders/{sub_number_order_id}/cancel`	Modify an existing resource without recreating it.	`SubNumberOrderId`
Create a sub number orders report	`client.SubNumberOrdersReport.New()`	`POST /sub_number_orders_report`	Create or provision an additional resource when the core tasks do not cover this flow.	None
Retrieve a sub number orders report	`client.SubNumberOrdersReport.Get()`	`GET /sub_number_orders_report/{report_id}`	Fetch the current state before updating, deleting, or making control-flow decisions.	`ReportId`
Download a sub number orders report	`client.SubNumberOrdersReport.Download()`	`GET /sub_number_orders_report/{report_id}/download`	Fetch the current state before updating, deleting, or making control-flow decisions.	`ReportId`

Other Webhook Events

Event	`data.event_type`	Description
`numberOrderStatusUpdate`	`number.order.status.update`	Number Order Status Update

For exhaustive optional parameters, full response schemas, and complete webhook payloads, see references/api-details.md.

telnyx-numbers-go

NPX Install

Tags

SKILL.md Content

Telnyx Numbers - Go

Installation

Setup

Error Handling

Important Notes

Reference Use Rules

Core Tasks

Search available phone numbers

Create a number order

Check number order status

Important Supporting Operations

Create a number reservation

Retrieve a number reservation

List Advanced Orders

Create Advanced Order

Update Advanced Order

Get Advanced Order

List available phone number blocks

Retrieve all comments

Additional Operations

Other Webhook Events