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Cayman Islands Phone Number Format
Country code +1345 — Complete guide to Cayman Islands phone number formats, mobile and landline structures, and area codes.
How Cayman Islands Phone Numbers Are Written
Phone numbers in the Cayman Islands have 10 digits after the country code +1.
The country is part of the North American Numbering Plan: a 3-digit area code and a 7-digit number, written
(345) XXX-XXXX. From the US, dial 1 + the 10 digits, with no 011.
| Country code | +1 |
|---|---|
| Digits after +1 | 10 digits |
| Trunk prefix (domestic calls) | 1, for long-distance calls |
| Mobile numbers start with | Same digits as landlines |
| Exit code (to call abroad from the Cayman Islands) | 011 |
| Dial from the US | 1 345-XXX-XXXX |
Mobile vs. Landline Numbers
10 digits after +1.
(345) XXX-XXXX at home+1 345-XXX-XXXX international10 digits after +1.
(345) XXX-XXXX at home+1 345-XXX-XXXX internationalMobile and landline numbers share the same area codes and exchanges, so you can’t tell them apart from the number alone.
Cayman Islands Number Types
| Type | Starts with | Written at home | International | From the US |
|---|---|---|---|---|
| Mobile | — | (345) XXX-XXXX |
+1 345-XXX-XXXX |
1 345-XXX-XXXX |
| Landline | — | (345) XXX-XXXX |
+1 345-XXX-XXXX |
1 345-XXX-XXXX |
| Toll-free | — | (800) XXX-XXXX |
+1 800-XXX-XXXX |
1 800-XXX-XXXX |
| Premium rate | — | (900) XXX-XXXX |
+1 900-XXX-XXXX |
1 900-XXX-XXXX |
X stands for any digit. Source: libphonenumber metadata (phonenumbers 9.0.40), Google's open numbering data.
Checking a number from Cayman Islands? The phone number checker tells you if it is valid, mobile or landline, and gives its international format.
Dialing Tips
- No 011 needed: Cayman Islands shares country code +1 with the US, so dial 1 + area code + number. Check your plan: calls to +1 Caribbean countries are often billed as international.
-
Use the + notation: From a US mobile phone, use
+1345instead of1. - Verify the number length: Numbers in the Cayman Islands have 10 digits after +1. If your call does not connect, check that no digit is missing or doubled.
-
Save contacts in international format: Always store phone numbers with the full
+1345prefix so they work from any country.
Cayman Islands Phone Number FAQ
How many digits does a phone number in the Cayman Islands have?
Phone numbers in the Cayman Islands have 10 digits after the country code +1.
Can you tell a mobile number from a landline in the Cayman Islands?
No. In the North American Numbering Plan, mobile and landline numbers share the same area codes and exchanges, so the number alone doesn't tell you which it is.
How do I write a phone number from the Cayman Islands in international format?
Start with +1, then the national number. For example, a mobile number written (345) XXX-XXXX at home becomes +1 345-XXX-XXXX. From a US landline, dial 1 345-XXX-XXXX.