Erro de proxy

Quando tento executar o

C:\Users\luiz.pampu\Documents\Curso react>npm install create-react-app

ocorre o seguinte erro

npm ERR! code ENOTFOUND
npm ERR! errno ENOTFOUND
npm ERR! network request to https://registry.npmjs.org/create-react-app failed, reason: getaddrinfo ENOTFOUND proxy.company.com proxy.company.com:8080
npm ERR! network This is a problem related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly.  See: 'npm help config'

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\luiz.pampu\AppData\Roaming\npm-cache\_logs\2018-09-21T17_06_08_709Z-debug.log