import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: 'My API Key',
});

const response = await client.countryCoverage.retrieveCountry('US');

console.log(response.data);

{
  "data": {
    "United States of America": {
      "code": "US",
      "numbers": true,
      "features": [
        "hd_voice",
        "emergency",
        "voice",
        "mms",
        "fax",
        "sms",
        "international_sms"
      ],
      "phone_number_type": [
        "local",
        "local",
        "local",
        "local",
        "toll_free"
      ],
      "reservable": true,
      "quickship": true,
      "international_sms": true,
      "p2p": true,
      "local": {
        "features": [
          "hd_voice",
          "voice",
          "international_sms",
          "mms",
          "fax",
          "sms",
          "emergency"
        ],
        "reservable": true,
        "quickship": false,
        "international_sms": true,
        "p2p": true,
        "full_pstn_replacement": true
      },
      "toll_free": {
        "features": [
          "voice",
          "mms",
          "fax",
          "sms",
          "emergency"
        ],
        "reservable": true,
        "quickship": true,
        "international_sms": false,
        "p2p": false,
        "full_pstn_replacement": false
      },
      "mobile": {},
      "national": {},
      "inventory_coverage": true,
      "shared_cost": {},
      "region": "AMER"
    }
  }
}