---
title: 'Certifying body phone country code'
field: 'is.certifyingBody.phoneCountryCode'
slug: 'is-certifyingbody-phonecountrycode'
description: 'International subscriber dialing (ISD) codes'
required: False
module: 'Certifying Body'
cluster: 'Certification'
policy: 'Numeric value. Single value only.'
layout: 'home'
---