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AT&T Number Management API

The Number Management API from AT&T — 2 operation(s) for number management.

AT&T Number Management API is one of 28 APIs that AT&T publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Number Management. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, and authentication docs.

This API exposes 2 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.0.3, at version 2.0.

Requests are made against a single base URL, https://devex-web.att.com.

2 operations 2 paths 4 schemas 1 PATCH1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
2.0
Base URL
https://devex-web.att.com
Authentication
OAuth 2.0
Terms of Service
Resource Areas
1

Authentication & Security 1

AT&T Number Management API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the authorizationCode flow, exposing 2 scopes.

  • oauth2 — AT&T OAuth 2.0 with user consent via authorization code flow

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 1 PATCH, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Number Management 2
POST
/resourceReservation
AT&T Reserve Subscriber Number
reserveSubscriberNumber body → 201400401
PATCH
/resourceReservation/{id}
AT&T Release Reserved Numbers
releaseNumberReservation 1 param body → 200404401

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are ResourceReservation (4 properties), ErrorResponse (4 properties), ResourceReservationCreate (1 property), ResourceReservationUpdate (1 property). Each schema is shown below with its type and property counts.

ErrorResponse
object
4 properties
ResourceReservation
object
4 properties
ResourceReservationUpdate
object
1 property
ResourceReservationCreate
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

att-number-management-api-openapi.yml Raw ↑

Other APIs AT&T publishes across the network.

AT&T OAuth 2.0 API
AT&T Alliance Wireline APIs
AT&T Authentication API
AT&T Balance Management API
AT&T Device Management API
AT&T Geographic Sites API
AT&T Inbox Management API
AT&T Messages API
AT&T Porting API
AT&T Product Orders API
AT&T Service Management API
AT&T SMS Messaging API
Where this information came from

This is an independent, third-party profile of AT&T Number Management API, 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.

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