How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Vonage Number Insight API (via KPN)

Vonage's Number Insight API provides details about the validity, reachability and roaming status of a phone number, as well as giving you details on how to format the number properly in your application. There are three levels of the Number Insight API available: - Basic - Standard - Advanced The advanced API is available asynchronously as well as synchronously.

Vonage Number Insight API (via KPN) is one of 38 APIs that KPN publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Identity, Number Insight, CPaaS, and Resold API. The published artifact set on APIs.io includes API documentation, an API reference, and an OpenAPI specification.

This API exposes 2 operations across 2 paths, and defines 10 schemas. It is described by OpenAPI 2.0, at version v1.1.1.

Requests are made against the base URL https://api-prd.kpn.com/communication/nexmo/number-insight.

2 operations 2 paths 10 schemas 2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 2.0
API Version
v1.1.1
Base URL
https://api-prd.kpn.com/communication/nexmo/number-insight
Authentication
OAuth 2.0
Terms of Service
Resource Areas
1

Authentication & Security 1

Vonage Number Insight API (via KPN) declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (OAuth2) using the application flow.

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 POST. Each is listed below with its method, path, parameters, and response codes.

Request 2
POST
/{level}
Synchronously get information about a phone number
NumberInsight 5 params → 200400401403404429500503
POST
/advanced/async
Asynchronously get information about a phone number
5 params → 200400401403404429500503

Schemas 10

The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are niResponseAdvanced (27 properties), niResponseStandard (21 properties), niResponseBasic (9 properties), niResponseAsync (5 properties). Each schema is shown below with its type and property counts.

niResponseBasic
object
Basic
9 properties
niResponseStandard
object
Standard
21 properties
niResponseAdvanced
object
Advanced
27 properties 9 required
niCarrier
object
Information about the network number was initially connected to.
4 properties
niRoaming
object
Information about the network number is currently connected to.
4 properties
niIP
object
Information about the provided IP address
4 properties
niCallerIdentity
object
Information about the network number is currently connected to.
5 properties
niStatus
integer
Code | Text -- | -- 0 | Success - request accepted for delivery by Vonage. 1 | Busy - you have made more requests in the last second than are permitted by your…
niResponseAsync
object
5 properties
ErrorResponse
object
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

vonage-number-insight-openapi.yml Raw ↑

Other APIs KPN publishes across the network.

KPN Number Verify API
KPN SIM Swap API (Account Takeover Protection)
KPN Match API
KPN SMS API
KPN SMS Inbound API
KPN Mobile Services Management API
KPN FIAM API
KPN FIAM Eneco Data Products API
KPN Disturbance Check API
KPN Internet Speed Check API
KPN High Level Design FttX API
KPN LoRa Device Management API
Where this information came from

This is an independent, third-party profile of Vonage Number Insight API (via KPN), published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.