curl --request POST \
  --url https://api.comm.com/api/v1/sms/routing/plans/{plan}/simulate/routes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "filter_segment_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "segment_ids": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ]
}'

{
  "data": [
    {
      "contacts_count": 123,
      "country_id": 123,
      "network_id": 123,
      "network_brand": "<string>",
      "routes": [
        {
          "id": "<string>",
          "name": "<string>",
          "company_id": "<string>",
          "cost": 123,
          "rate_id": "<string>"
        }
      ]
    }
  ]
}