---
title: "Get carrier-supported rate centers by proximity"
method: GET
path: "/v2/supported-rate-centers"
tags: ["Supported Rate Centers"]
---

# Get carrier-supported rate centers by proximity

`GET /v2/supported-rate-centers`

## Request

- Base URL: `https://api.alianza.com`
- URL: `https://api.alianza.com/v2/supported-rate-centers`
- Auth: API key in header `X-AUTH-TOKEN`
- TypeScript: <https://skmtc.dev/alianza/apis/alianza-public-api/docs/v2/supported-rate-centers/get.ts> (a function with typed inputs; its response is checked against the schema)

## Query parameters

- `busOrgId` string
- `distanceUnit` 'MILES' | 'KILOMETERS' | 'RADIANS'
- `latitude` number, double
- `longitude` number, double
- `maxResults` integer
- `state` string
- `type` 'LEVEL_3' | 'NO_API' | 'E911' | 'TELUS' | 'TELUS_API' | 'TELUS_ONEVOICE' | 'PROVTEL' | 'VERIZON_CARIANZA' | 'ONVOY_CARIANZA' | 'LEVEL3_CARIANZA' | 'BANDWIDTH' | 'LUMEN_IMS' | 'LUMEN_VOICE_LI_ELS' | 'SINCH' | 'SERVICE_PROVIDER_CARRIER'

## Response `200`

Successful operation

- RateCenterSearchViewX
  - `name` string
  - `abbrName` string
  - `reorderName` string
  - `reorderNameAlias` string
  - `state` string
  - `country` string
  - `latitude` number, double
  - `longitude` number, double
  - `msa` string
  - `zips` string[]
  - `prefixes` TelephoneNumberPrefixViewX[]
    - `prefix` string
    - `wireless` boolean
    - `wirelessBlockNumbers` string[]
  - `distance` number, double

## Other responses

- `400`: Invalid request parameters
- `401`: Unauthorized
- `404`: Not found

---

[API](https://skmtc.dev/alianza/apis/alianza-public-api.md) - [All operations](https://skmtc.dev/alianza/apis/alianza-public-api/llms.txt) - [OpenAPI document](https://skmtc.dev/alianza/apis/alianza-public-api/revisions/7223246c352c?raw)