import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
});

const simCard = await client.simCards.retrieve('6a09cdc3-8948-47f0-aa62-74ac943d6c58');

console.log(simCard.data);

{
  "data": {
    "id": "6a09cdc3-8948-47f0-aa62-74ac943d6c58",
    "record_type": "sim_card",
    "status": {
      "value": "enabled",
      "reason": "The SIM card is active, ready to connect to networks and consume data."
    },
    "type": "physical",
    "iccid": "89310410106543789301",
    "imsi": "081932214823362973",
    "msisdn": "+13109976224",
    "sim_card_group_id": "6a09cdc3-8948-47f0-aa62-74ac943d6c58",
    "tags": [
      "personal",
      "customers",
      "active-customers"
    ],
    "authorized_imeis": [
      "106516771852751",
      "534051870479563",
      "508821468377961"
    ],
    "current_imei": "457032284023794",
    "data_limit": {
      "amount": "2048.1",
      "unit": "MB"
    },
    "current_billing_period_consumed_data": {
      "amount": "2049.0",
      "unit": "MB"
    },
    "actions_in_progress": true,
    "created_at": "2018-02-02T22:25:27.521Z",
    "updated_at": "2018-02-02T22:25:27.521Z",
    "ipv4": "192.168.0.0",
    "ipv6": "2001:cdba:0000:0000:0000:0000:3257:9652",
    "current_device_location": {
      "latitude": "41.143",
      "longitude": "-8.605",
      "accuracy": 1250,
      "accuracy_unit": "m"
    },
    "current_mnc": "260",
    "current_mcc": "410",
    "live_data_session": "connected",
    "pin_puk_codes": {
      "pin1": "1234",
      "pin2": "5678",
      "puk1": "12345678",
      "puk2": "87654321"
    },
    "esim_installation_status": "released",
    "version": "4.3",
    "resources_with_in_progress_actions": [],
    "eid": null
  }
}