Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/telnyx-number-lookup-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
contact:
email: support@telnyx.com
description: Telnyx provides global communications and connectivity APIs for developers — including SIP trunking, programmable voice, SMS, MMS, WhatsApp Business Messaging, Call Control, Fax, Wireless (IoT & eSIM), Phone Numbers (DID provisioning & porting), Emergency Services, and Network APIs for private interconnects and edge connectivity. Build, scale, and manage voice, messaging, and data networks with Telnyx's carrier-grade global infrastructure and API-first platform.
title: Telnyx Number Lookup API
version: 2.0.0
x-endpoint-cost: light
servers:
- description: Version 2.0.0 of the Telnyx API
url: https://api.telnyx.com/v2
security:
- bearerAuth: []
tags:
- description: Look up phone number data
name: Number Lookup
paths:
/number_lookup/{phone_number}:
get:
description: Returns information about the provided phone number.
operationId: LookupNumber
parameters:
- $ref: '#/components/parameters/number-lookup_PhoneNumber'
- $ref: '#/components/parameters/NumberLookupType'
responses:
'200':
$ref: '#/components/responses/NumberLookupResponse'
'422':
$ref: '#/components/responses/number-lookup_UnprocessableEntity'
default:
$ref: '#/components/responses/number-lookup_GenericErrorResponse'
summary: Lookup phone number data
tags:
- Number Lookup
x-latency-category: responsive
components:
schemas:
NumberLookupRecord:
properties:
caller_name:
$ref: '#/components/schemas/CallerName'
carrier:
$ref: '#/components/schemas/Carrier'
country_code:
description: Region code that matches the specific country calling code
example: US
type: string
fraud:
description: Unused
example: null
type:
- string
- 'null'
national_format:
description: Hyphen-separated national number, preceded by the national destination code (NDC), with a 0 prefix, if an NDC is found
example: (0312) 945-7420
type: string
phone_number:
description: E164-formatted phone number
example: '+13129457420'
type: string
portability:
$ref: '#/components/schemas/Portability'
record_type:
description: Identifies the type of record
example: number_lookup
type: string
title: NumberLookup
type: object
CallerName:
properties:
caller_name:
description: The name of the requested phone number's owner as per the CNAM database
example: TELNYX LLC
type: string
error_code:
description: A caller-name lookup specific error code, expressed as a stringified 5-digit integer
example: '10001'
type: string
type: object
Portability:
properties:
altspid:
description: Alternative SPID (Service Provider ID). Often used when a carrier is using a number from another carrier
example: 073H
type: string
altspid_carrier_name:
description: Alternative service provider name
example: Telnyx/4
type: string
altspid_carrier_type:
description: Alternative service provider type
example: '3'
type: string
city:
description: City name extracted from the locality in the Local Exchange Routing Guide (LERG) database
example: WAUKEGAN
type: string
line_type:
description: Type of number
example: voip
type: string
lrn:
description: Local Routing Number, if assigned to the requested phone number
example: '2245701999'
type: string
ocn:
description: Operating Company Name (OCN) as per the Local Exchange Routing Guide (LERG) database
example: 073H
type: string
ported_date:
description: ISO-formatted date when the requested phone number has been ported
example: '2017-10-20'
type: string
ported_status:
description: Indicates whether or not the requested phone number has been ported
enum:
- Y
- N
- ''
example: Y
type: string
spid:
description: SPID (Service Provider ID)
example: 073H
type: string
spid_carrier_name:
description: Service provider name
example: Telnyx/4
type: string
spid_carrier_type:
description: Service provider type
example: '3'
type: string
state:
example: Illinois
type: string
type: object
number-lookup_Error:
properties:
code:
type: string
detail:
type: string
meta:
additionalProperties: true
type: object
source:
properties:
parameter:
description: Indicates which query parameter caused the error.
type: string
pointer:
description: JSON pointer (RFC6901) to the offending entity.
type: string
type: object
title:
type: string
required:
- code
- title
type: object
Carrier:
properties:
error_code:
description: Unused
example: null
type:
- string
- 'null'
mobile_country_code:
description: Region code that matches the specific country calling code if the requested phone number type is mobile
example: US
type: string
mobile_network_code:
description: National destination code (NDC), with a 0 prefix, if an NDC is found and the requested phone number type is mobile
example: 0866
type: string
name:
description: SPID (Service Provider ID) name, if the requested phone number has been ported; otherwise, the name of carrier who owns the phone number block
example: Telnyx/4
type: string
normalized_carrier:
description: If known to Telnyx and applicable, the primary network carrier.
example: AT&T
type: string
type:
description: A phone number type that identifies the type of service associated with the requested phone number
enum:
- fixed line
- mobile
- voip
- fixed line or mobile
- toll free
- premium rate
- shared cost
- personal number
- pager
- uan
- voicemail
- unknown
example: voip
type: string
type: object
number-lookup_Errors:
properties:
errors:
items:
$ref: '#/components/schemas/number-lookup_Error'
type: array
type: object
parameters:
number-lookup_PhoneNumber:
description: The phone number to be looked up
in: path
name: phone_number
required: true
schema:
example: '+18665552368'
type: string
NumberLookupType:
description: Specifies the type of number lookup to be performed
in: query
name: type
required: false
schema:
enum:
- carrier
- caller-name
type: string
responses:
number-lookup_GenericErrorResponse:
content:
application/json:
schema:
$ref: '#/components/schemas/number-lookup_Errors'
description: Unexpected error
NumberLookupResponse:
content:
application/json:
schema:
properties:
data:
$ref: '#/components/schemas/NumberLookupRecord'
title: Number Lookup Response
type: object
description: Successful response
number-lookup_UnprocessableEntity:
content:
application/json:
schema:
$ref: '#/components/schemas/number-lookup_Errors'
description: Unprocessable entity. Check the 'detail' field in response for details.
securitySchemes:
bearerAuth:
scheme: bearer
type: http
branded-calling_bearerAuth:
description: API key passed as a Bearer token in the Authorization header
scheme: bearer
type: http
oauthClientAuth:
description: OAuth 2.0 authentication for Telnyx API and MCP integrations
flows:
authorizationCode:
authorizationUrl: https://api.telnyx.com/v2/oauth/authorize
refreshUrl: https://api.telnyx.com/v2/oauth/token
scopes:
admin: Administrative access to Telnyx resources
tokenUrl: https://api.telnyx.com/v2/oauth/token
clientCredentials:
scopes:
admin: Administrative access to Telnyx resources
tokenUrl: https://api.telnyx.com/v2/oauth/token
type: oauth2
outbound-voice-profiles_bearerAuth:
bearerFormat: JWT
scheme: bearer
type: http
pronunciation-dicts_bearerAuth:
description: Telnyx API v2 key. Obtain from https://portal.telnyx.com
scheme: bearer
type: http
stored-payment-transactions_bearerAuth:
bearerFormat: JWT
scheme: bearer
type: http