How to Use the +345 Country Code: A Guide for SMBs and Startups

Whether you're connecting with financial firms in George Town or coordinating with tourism operators in West Bay, understanding how to format and dial Cayman Islands phone numbers correctly is key to building smooth, professional communication.

This quick guide will walk you through everything you need to know about the 345 country code, dialing formats, and how DialLink’s AI-powered phone system simplifies global communication for small businesses and startups.

What Is the 345 Country Code?

+1-345 is the area code for the Cayman Islands, which is part of the North American Numbering Plan (NANP) — the same system used by the United States and Canada.

Here’s what that looks like:

• Country Code: +1
• Cayman Islands Area Code: 345
• Number Format: +1 345 XXX XXXX

Because of its inclusion in the NANP, dialing the Cayman Islands is similar to placing a long-distance call within the U.S. or Canada.

Common Pitfalls in International Number Formatting

Incorrect formatting of Cayman Islands phone numbers can lead to failed calls, delivery issues, or syncing problems across CRMs and phone systems. Here are common issues to avoid:

• Leaving out the country code (+1) — this leads to undelivered calls
• Formatting inconsistently across platforms — which can break automation
• Treating “345” as a country code — when it’s actually an area code under NANP

For SMBs handling cross-border communications, following standardized formats like E.164 helps ensure reliability across CRMs, VoIP platforms, and contact databases.

Make International Calling Easy with DialLink

DialLink is an AI-powered cloud phone system built to serve growing businesses. Whether you’re managing outsourced services in the Caribbean or supporting international customers, DialLink makes it simple to stay connected without the overhead of enterprise-grade telecom systems.

Here’s how DialLink makes it easier:

• International calls – Make affordable international calls with no complex setup or hidden fees
• AI voice agents – Automate routine calls, like client support or booking inquiries
• Mobile, desktop, and desk phone support – Make calls anytime, from anywhere
• Professional call handling tools – Voicemail, call routing, transcripts, and more
• Business messaging – Send and receive messages from contacts from the Cayman Islands

Common Cayman Islands Number Format Examples

*Note: 1-800 numbers are U.S.-based and may not work when dialed from outside the country.

How to Read and Format Cayman Islands Numbers

Because the Cayman Islands use the North American Numbering Plan, their phone numbers follow a familiar format:

• +1 — The shared country code for NANP regions
• 345 — The area code for the Cayman Islands
• XXX XXXX — The 7-digit local subscriber number

This makes dialing to the Cayman Islands from the U.S. or Canada as simple as dialing another area code.

Format Variations

• International Format (E.164): +13459491234 — used in contact management systems and CRMs for standardization.
• Local Format (in Cayman Islands): 949-1234 — used when calling within the same area code locally.
• Long-Distance Format (within NANP): 1-345-949-1234 — used for dialing from the U.S. or Canada.
• International Dialing Format (outside NANP): 00 1 345 949 1234 — used when dialing from countries that use “00” as the international access code (e.g., UK, Germany).

Best Practices for SMBs

• Store contacts in full international format (e.g., +1 345 XXX XXXX) to ensure compatibility across platforms and avoid failed calls. 
• Include both country and area codes, even for local contacts, to maintain consistency and avoid confusion when syncing data. 
• Standardize number formatting across all tools — from CRMs and dialers to messaging apps — to streamline automation and reduce errors.