Country code
Definition
The international dialing prefix for a country, such as +1 for the US and Canada or +44 for the UK.
Country code, explained
A country code is the prefix that routes a call or text to the right national network, written with a plus sign. The United States and Canada share +1 as part of the North American Numbering Plan, so you cannot tell them apart by country code alone; the area code shows which country a number belongs to. The United Kingdom uses +44. When a sign-up form asks for your number, it usually has a separate country selector, and entering the code twice is a common reason verification fails. Noir SMS offers US, Canada and UK numbers, plus 190+ other countries with varying stock.
Related terms
Where you'll meet this term
SMS Verification Code Not Arriving? Causes and Fixes
Not getting an SMS verification code? Fix rate limits, country code format, voice-call fallback, rejected number types and resend timing, step by step.
Read the guide →TroubleshootingWhatsApp Verification Code Not Received: Causes and Fixes
Why your WhatsApp code isn't arriving: resend timers, SMS vs call, country code format, temporary blocks, and when to retry with a new number.
Read the guide →TroubleshootingInstagram SMS Code Not Arriving or Stuck in a Checkpoint Loop
Instagram code not arriving or stuck in a security checkpoint loop? Causes, safe fixes, and what to do when the SMS never comes.
Read the guide →TroubleshootingDiscord Phone Verification Not Working: VoIP, “Already in Use” and Rate Limits
Fix Discord phone verification: VoIP numbers rejected, “number already in use,” rate limits, and codes that never arrive.
Read the guide →Temporary mobile number vs Your own SIM or eSIMBest virtual number for WhatsApp: what actually matters
Mobile vs VoIP, US vs UK vs Canada, temporary vs your own SIM, and WhatsApp Business. An honest guide to choosing a number for WhatsApp.
See the comparison →US or Canada number (+1) vs UK number (+44)US vs UK vs Canada virtual numbers for verification
US and Canadian numbers share +1; UK numbers use +44. How to choose a country for a temporary verification number, and what changes between them.
See the comparison →