The +1-345 country code is for the Cayman Islands, a British Overseas Territory of three islands in the western Caribbean about 240km south of Cuba. Grand Cayman is where almost everyone lives -- roughly 65,000 of the territory's 70,000 population. Cayman Brac and Little Cayman are much smaller and quieter. George Town, on Grand Cayman's west coast, is the capital.
The Cayman Islands are known for two things: financial services and tourism. The territory has no income tax, no capital gains tax, and no corporate tax, which has made it one of the world's largest offshore financial centers. More than 100,000 companies are registered here. The other side of the economy is the cruise ships -- George Town is one of the busiest cruise ports in the Caribbean.
Quick answer: The country code +1-345 is for the Cayman Islands. It's a NANP territory, so numbers follow the format
+1-345-XXX-XXXX(10 digits total). Mobile numbers use prefixes like 916-9269, 325-329, 525-529. Landlines use 945-949, 623-627. There is no trunk prefix -- dial 1-345 plus the 7-digit number.
How to call Cayman Islands: quick reference
The Cayman Islands are part of the North American Numbering Plan (NANP) with area code 345. From the US or Canada, you dial them the same way you'd dial any long-distance number -- just 1-345 followed by the 7-digit local number. No international exit code needed from a mobile.
| Calling from | Dialing format |
|---|---|
| US/Canada mobile | +1345 [local number] |
| US/Canada landline | 011-1345-[local number] |
| UK | 00-1345-[local number] |
| Australia | 0011-1345-[local number] |
| Germany | 00-1345-[local number] |
| France | 00-1345-[local number] |
Understanding Cayman Islands phone numbers
Cayman Islands numbers follow the standard NANP format: +1-345-NXX-XXXX, where N is 2-9. The area code 345 covers all three islands. There are no separate area codes for Grand Cayman, Cayman Brac, or Little Cayman.
Mobile numbers
Mobile numbers use several prefix ranges including 916-926, 325-329, 525-529, and 938-939. The two mobile carriers divide these prefixes between them. A Cayman mobile number looks like +1-345-925-XXXX or +1-345-326-XXXX.
Landline numbers
Landlines are concentrated in the 945-949 and 623-627 ranges. Since Grand Cayman is small (about 35km long), there's no geographic sub-division within the numbering plan. A typical business landline looks like +1-345-949-XXXX.
Special numbers
Emergency services: 911 (same as the US). Directory assistance: 411. These work locally but cannot be dialed internationally.
Mobile carriers in Cayman Islands
Flow (Liberty Latin America)
The incumbent carrier, formerly Cable & Wireless and then LIME. Flow handles most landline connections and has a large share of the mobile market. It also provides broadband and TV services. Coverage is solid across Grand Cayman and extends to Cayman Brac and Little Cayman.
Digicel
Entered the Cayman market in 2004 and competes mainly on mobile. Digicel tends to offer more aggressive data and prepaid plans. Coverage on Grand Cayman is comparable to Flow; on the smaller islands, it can be spottier.
Network quality
Grand Cayman has 4G LTE from both carriers with good coverage across the island. Cayman Brac has reasonable coverage in populated areas. Little Cayman, with a population of about 170 people, has basic mobile service but don't expect fast data speeds everywhere.
Don't confuse +1345 with nearby codes
| Code | Country | Why it's confused |
|---|---|---|
| +1-242 | Bahamas | Nearby Caribbean NANP territory |
| +1-246 | Barbados | Similar 3-digit area code, both Caribbean |
| +1-876 | Jamaica | Closest large island, frequent travel route |
Because the Cayman Islands are NANP, there's a common trap: people see a +1-345 number and assume it's a US number. It is not. Calling 1-345 from within the US or Canada is an international call and will be billed at international rates, even though it looks like a domestic long-distance call. Your carrier may not make this obvious on your bill.
Time zone considerations
The Cayman Islands use Eastern Standard Time (EST), UTC-5, year-round. They do not observe daylight saving time. This means during US summer months (EDT), the Caymans are 1 hour behind New York.
| Your location | Time difference | When it's 9 AM in George Town |
|---|---|---|
| US East Coast (EST) | Same | 9:00 AM in New York |
| US East Coast (EDT) | -1 hour | 10:00 AM in New York |
| UK (GMT) | -5 hours | 2:00 PM in London |
| UK (BST) | -6 hours | 3:00 PM in London |
| Jamaica | Same | 9:00 AM in Kingston |
The UK is listed because the Caymans are a British Overseas Territory with close ties to London's financial district. Jamaica is included because it's the closest large island and many Cayman residents have Jamaican roots.
Communication in Cayman Islands
Business hours
Standard business hours are 8:30 AM to 5:00 PM, Monday through Friday. Banks close at 3:00 or 4:00 PM. Government offices follow similar hours. Financial services firms often keep extended hours to overlap with London and New York markets.
Language
English is the official and everyday language. No language barrier for callers from the US, UK, or other English-speaking countries. Because of the large Jamaican community, you'll also hear Jamaican Patois informally, but business is conducted in standard English.
Calling culture
The Cayman Islands are small and business-oriented. Cold calls to financial firms are normal practice -- the territory runs on professional services. For personal calls, WhatsApp and iMessage are widely used alongside traditional phone calls. International calling is common since a large portion of the workforce is expatriate.
The Caymanian diaspora
A territory of immigrants, not emigrants
The Cayman Islands are unusual in that there isn't a large outward diaspora. The opposite is true: people move to the Caymans, not away from them. About half the resident population is expatriate, drawn by financial sector jobs and the lack of income tax. The largest expat groups come from Jamaica, the UK, the US, and Canada.
Who calls the Caymans
Most international calls to +1-345 come from financial centers: New York, London, Hong Kong, and Toronto. These are business calls to banks, hedge fund administrators, law firms, and trust companies. Family calls tend to come from Jamaica (large Jamaican community on Grand Cayman) and the UK. Hurricane season (June through November) generates spikes in calls from abroad as people check on family and property.
Dialing examples
Calling a business in George Town from the US
A law firm in George Town has the number 949-8000. From a US mobile, dial +1-345-949-8000. From a US landline, dial 1-345-949-8000. It looks like a domestic call but it's international -- check your rates.
Calling a mobile on Grand Cayman from the UK
Your colleague's Cayman mobile is 925-1234. From a UK phone, dial +1-345-925-1234 or 00-1-345-925-1234.
Calling Cayman Brac from Canada
A hotel on Cayman Brac has the number 948-2222. From Canada, dial 1-345-948-2222. Same format as Grand Cayman -- all three islands share the 345 area code.
Local calls within the Cayman Islands
For local calls, dial just the 7-digit number: 949-8000. No need to include the area code 345 when calling from within the territory.
Common mistakes to avoid
Assuming +1-345 is a US number
The +1 prefix makes people think they're calling domestically. They're not. The Cayman Islands are international territory, and your carrier will charge international rates. Many people discover this on their phone bill after the fact.
Dialing 011-1345 from a US mobile
From a US mobile, just dial +1-345-XXX-XXXX. The 011 exit code is only for landlines. If you dial 011 from a mobile, it may still work, but +1 is the correct format.
Expecting the 345 area code to split by island
All three Cayman Islands share the single area code 345. There's no separate code for Cayman Brac or Little Cayman. The prefix within the 7-digit number tells you nothing about which island the number is on.
Forgetting about the DST offset
The Caymans don't observe DST but much of the US and UK do. During summer months, the Caymans are 1 hour behind New York (which is on EDT) and 6 hours behind London (which is on BST). Business calls to financial firms should account for this shift.
Prefer calling over WiFi? See our guide to the best apps for WiFi calling.
Frequently asked questions (FAQ)
What country uses the +1-345 code?
The +1-345 code is for the Cayman Islands, a British Overseas Territory in the western Caribbean. It covers all three islands: Grand Cayman, Cayman Brac, and Little Cayman.
Is calling +1-345 the same as calling the US?
No. Even though the Cayman Islands share the +1 country code with the US and Canada under the NANP, calls to +1-345 are international calls and billed at international rates.
What time zone are the Cayman Islands in?
The Cayman Islands use Eastern Standard Time (EST, UTC-5) year-round. They do not switch to daylight saving time, so in summer they are 1 hour behind the US East Coast.
How many digits is a Cayman Islands phone number?
A complete Cayman Islands number is 10 digits: the area code 345 plus a 7-digit local number. When dialing internationally, add +1 before the 345.
How much does it cost to call the Cayman Islands?
With CallSky, Economy rates are $0.26/min for landlines and $0.36/min for mobiles. Premium rates are $0.47/min for landlines and $0.58/min for mobiles.
Calling other Caribbean islands? Check our guides to Bahamas (+1-242), Jamaica (+1-876), and Barbados (+1-246).