+1 is the country code for the Cayman Islands
+1 explained
The Cayman Islands country code, 1, is what you dial before a Cayman Islands number when you call from abroad. It is also known as the Cayman Islands dialing code, Cayman Islands calling code, or Cayman Islands phone code. In the Cayman Islands phone number format, +1 comes first, then the area code and the local number.
- Country code
- +1
- The 001 country code is the same number
- ISO country codes
- KY, CYM
- Use the KY country code or the CYM country code on forms and passports. To call the Cayman Islands, dial +1
- Used in
- Cayman Islands
- Also on +1: Antigua and Barbuda, Anguilla, American Samoa, Barbados, Bermuda, Bahamas, Canada, Dominica, Dominican Republic, Grenada, Guam, Jamaica, St Kitts and Nevis, St Lucia, Northern Mariana Islands, Montserrat, Puerto Rico, Sint Maarten, Turks and Caicos, Trinidad and Tobago, United States, St Vincent, British Virgin Islands, and US Virgin Islands
- Exit code
- 00
- From most countries. Also 011 from United States and Canada, 0011 from Australia, and + from any mobile
- Trunk prefix
- None
- Keep every digit after +1
- Number length
- 10 digits
- After +1
- Time now in the Cayman Islands
- Cayman Islands mobile number format
- (345) 323-1234
- From abroad: +1 345 323 1234
- Cayman Islands landline number format
- (345) 222-1234
- From abroad: +1 345 222 1234
Cayman Islands phone number types
The first digits of a Cayman Islands number tell you what kind of number it is: a landline, a mobile, a free number, or one that costs more to call. Here is a sample of each type of Cayman Islands phone number, as dialed inside the Cayman Islands and from abroad.
Good to know before you call the Cayman Islands
“Hello”
The everyday English greeting. No separate Caymanian way of answering the phone is documented.
Emergency number
911
The Royal Cayman Islands Police Service lists a separate non-emergency line, +1 345 949-4222.
Royal Cayman Islands Police ServiceBefore splitting from the shared 809 Caribbean code, the Cayman Islands used exchange 94, so callers dialled only the last 5 digits of a number.
Wikipedia: Telephone numbers in the Cayman IslandsThe Cayman Islands took a full year to switch to its own 345 code: dual dialling between 809 and 345 ran from 1 September 1996 to 31 August 1997.
Wikipedia: Telephone numbers in the Cayman IslandsOfReg, the Cayman Islands' telecoms regulator, follows the same industry principles NANPA uses for deciding who gets a new phone number here.
OfReg, the Cayman Islands numbering policy
What it costs to call the Cayman Islands (using Suparelay)
Landline from $0.34/minMobile from $0.44/min
Only 91 of 221 countries cost less to call than the Cayman Islands.
Enter a numberEach bar counts the countries at that price
Want to call the Cayman Islands?
Call any phone from this tab. Nothing to install on either side, and you pay cents a minute.
Why a call to the Cayman Islands fails
You call from: 🇦🇺 Australia
Dialling an exit code from the US or Canada
The Cayman Islands shares +1 with the US and Canada, so a call from either country dials 1, then 345, then the number, with no exit code. Everywhere else, dial your own exit code first, such as 00 1 345 from the UK.
- Connects
- 0011 1 345 222 1234
- Does not connect
- 00 1 345 222 1234
Calling a Cayman Islands toll-free number from outside North America
Cayman Islands toll-free numbers start with 8, part of the North American Numbering Plan the territory shares with the US and Canada. A number in that plan may not connect for a caller outside it.
- Connects
- 0011 1 345 222 1234
- Does not connect
- 0011 1 800 234 5678
Questions about +1
What is the country code for the Cayman Islands?
+1 345 is the country code and area code for the Cayman Islands. Dial +1 345, then the 7-digit local number.
How do I dial the Cayman Islands from abroad?
Dial your own exit code, then +1 345 and the 7-digit number. From the US or Canada, dial 1, 345, and the number, with no exit code.
Can I text a Cayman Islands number?
Yes. Write the number as +1 345 and the 7 digits, and your carrier sends the text at its own international rate.
How much does it cost to call the Cayman Islands?
A call to a Cayman Islands mobile can cost more than one to a landline. The dialer on this page shows the exact price of the number you enter before you call.
What is the KY country code?
KY is the Cayman Islands' ISO code, used on forms and in addresses. The number you dial is +1 345.
Is +1 345 the same as a US number?
No. 345 is the Cayman Islands' own area code inside the shared +1 system, separate from every US area code.
What is the area code for the Cayman Islands?
The Cayman Islands has one area code, 345, for the whole territory. Every Cayman Islands number starts with 345, so there is no second area code to know.
The information on this page is accurate as of September 26, 2026.
OfReg, the Cayman Islands numbering policy