---
title: "Changes to Check a UAC Connection Registration Status"
method: POST
path: "/uac_connections/{id}/actions/check_registration_status"
---

# Changes to Check a UAC Connection Registration Status

`POST /uac_connections/{id}/actions/check_registration_status`

> Every recorded change to this endpoint, newest first.
> 99 revisions in range; 1 not diffed.

## Timeline

Changed in 1 of 99 revisions.

- **2026-09-16** `a6a61a29ecdd` — 6 breaking

## Changes

- **2026-09-16** `a6a61a29ecdd` — 6 breaking
  - the response property `data/ip_address` became nullable for the status `200`
  - the response property `data/last_registration` became nullable for the status `200`
  - the response property `data/port` became nullable for the status `200`
  - the response property `data/sip_username` became nullable for the status `200`
  - the response property `data/transport` became nullable for the status `200`
  - the response property `data/user_agent` became nullable for the status `200`

---

[Operation](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/docs/uac_connections/:id/actions/check_registration_status/post.md) · [API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) · [Page](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/uac_connections/:id/actions/check_registration_status/post)