List SMS suppressions
Retrieve the organization's SMS suppression list (opt-outs and permanent delivery failures).
GET /app/subscribers/sms/suppression
Returns a paginated list of suppressed phone numbers for the organization. Entries are created when a recipient opts out (STOP), when the messaging provider reports a permanent delivery failure, or when a send is rejected because the destination remains on a carrier-level opt-out list.
Requires the admin or subscriber role and the SMS notifications feature entitlement.
Request
See API Basics for required headers.
Query parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
limit | integer | No | Max entries per page. Range: 1–100. Default: 10. |
nextToken | string | No | Next-page bookmark from the previous response — pass unchanged. See Pagination. |
phone | string | No | Filter to an exact E.164 phone number (e.g. +14155552671). Must be valid E.164 when provided. |
Sample request
curl "https://api.statusdashboard.com/app/subscribers/sms/suppression?phone=%2B14155552671" \
-H "Authorization: Bearer bcf847abf5c6:def456"Sample response
Status: 200 OK
{
"suppressions": [
{
"phone": "+14155552671",
"reason": "opt_out",
"detail": "Inbound STOP keyword",
"suppressedAt": "2026-06-26T14:30:00.000Z",
"lastEventAt": "2026-06-26T14:30:00.000Z"
}
],
"nextToken": null
}Response fields
| Field | Type | Description |
|---|---|---|
suppressions | array | Suppression entries for this page. |
nextToken | string | null | Next-page bookmark when more results exist. See Pagination. |
Entry fields
Each suppressions[] item:
| Field | Type | Description |
|---|---|---|
phone | string | Suppressed number in E.164 format. |
reason | string | opt_out, invalid, carrier_blocked, spam, or protect. |
detail | string | omitted | Human-readable summary from the event. |
suppressedAt | string | ISO 8601 — first time this number was suppressed. |
lastEventAt | string | ISO 8601 — most recent event for this entry. |
Pagination
See Pagination in API Basics. Re-send the same query parameters on every page request.
Retention
Suppression entries do not expire. They remain until removed via DELETE suppression.
See SMS suppression list for how entries are created, what each reason means, and when it is safe to remove a row.
Error responses
| Status | When |
|---|---|
400 | Invalid query parameters (e.g. malformed phone or nextToken). |
403 | Missing required role, or the SMS notifications feature is not enabled on your plan. |

