Telnyx Numbers - Go
Installation
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: 401 invalid API key, 403 insufficient permissions, 404 resource not found, 422 validation error (check field formats), 429 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.