The 959 area code is an overlay serving northern and eastern Connecticut, including the state capital of Hartford. Introduced in 2014, it was layered directly on top of the established 860 area code to supply fresh phone numbers across the Hartford metro and eastern part of the state.
Quick Summary of the 959 Area Code
| Area Code | 959 |
| State | Connecticut (CT) |
| Region | Northern & Eastern Connecticut (Hartford) |
| Major Cities | Hartford, New Britain, West Hartford, Manchester, New London, Norwich, Middletown, Torrington |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Dialing Format | 10-digit dialing required |
Geographic Coverage
The 959 area code shares an identical footprint with 860, covering the capital city of Hartford and its suburbs of West Hartford, New Britain, and Manchester, Middletown on the Connecticut River, Torrington in the northwest, and New London and Norwich in the southeast. Because it is an overlay rather than a separate region, a 959 number and an 860 number can exist on the same street.
Time Zone
The 959 area code observes Eastern Time (ET). Clocks follow Eastern Standard Time (UTC−5) in winter and shift to Eastern Daylight Time (UTC−4) from mid-March through early November. All of Connecticut is on Eastern Time. From the West Coast, this region is three hours ahead of Pacific Time, so a 9:00 AM call in California reaches a 959 number at 12:00 PM local time.
Tip: Business hours across the 959 region generally run 9:00 AM to 5:00 PM Eastern Time, Monday through Friday.
How to Dial a 959 Number
Because area code 959 operates as part of an overlay, 10-digit dialing is mandatory for every local and long-distance call. You must dial the full 10-digit number (959 + the seven-digit line number) even when calling a neighbor across the street. For international callers, dial your country’s exit code, then +1 (the North American country code), then 959, followed by the seven-digit local number.
Scam Alerts for the 959 Area Code
Like every U.S. area code, 959 has been used by scammers who spoof local numbers to appear trustworthy. Residents in Hartford, New Britain, West Hartford, Manchester, New London, Norwich, Middletown, Torrington should stay alert to the following common tactics:
| Scam Type | What to Watch For |
|---|---|
| IRS / Tax Scams | Threatening calls demanding immediate tax payment via gift cards or wire transfer. |
| Utility Shut-off | Impostors claiming to be Eversource threatening to cut power unless you pay now. |
| Casino / Prize Scam | Calls claiming you won a jackpot at Foxwoods or Mohegan Sun but must pay a “processing fee” to collect. |
| Tech Support Fraud | Pop-ups or calls claiming your computer is infected and asking for remote access. |
If you receive a suspicious call from a 959 number, take these steps to protect yourself:
- Do not share personal information such as Social Security numbers, bank details, or passwords over the phone.
- Hang up and verify by calling the organization back using an official number from its website.
- Report the call to the FTC at reportfraud.ftc.gov and to the Connecticut Department of Consumer Protection.
- Block the number and consider registering with the National Do Not Call Registry.
Red Flag: Legitimate agencies such as the IRS, Social Security Administration, or your local utility company (Eversource or United Illuminating) will never demand immediate payment by gift card, wire transfer, or cryptocurrency. Any 959 caller making such a demand is a scammer.
History and Economy of the 959 Region
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The 959 area code entered service in 2014 as an overlay for the entire 860 region. Overlays let regulators add a fresh supply of phone numbers to a crowded area without forcing existing customers to change their established numbers, so 959 covers precisely the same cities as 860. Hartford, the “Insurance Capital of the World,” anchors the regional economy with the headquarters of Aetna, The Hartford, and Travelers, along with state government. The region is also a major aerospace and defense center – Pratt & Whitney jet engines, Electric Boat submarines in Groton, and Sikorsky helicopters – and includes the University of Connecticut and the Foxwoods and Mohegan Sun casinos. Because 959 is the newer of the two Hartford-area codes, it appears most often on recently activated mobile numbers and new business lines.
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Looking Up a 959 Number
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To identify a 959 caller, use a reverse phone lookup or search the complete 10-digit number online. Because 959 is a newer code often used for mobile numbers, some callers may have a smaller public footprint, so never share personal or financial details with an unverified caller.
Nearby & Related Area Codes
Connecticut is served by five area codes. If you are researching 959, these neighboring and overlay codes are worth knowing:
- 860 – Northern & Eastern CT (overlay partner)
- 203 – Southwestern CT / Fairfield & New Haven
- 475 – Southwestern CT overlay
- 428 – Statewide Connecticut overlay
You can also browse our full directory of Connecticut area codes for more regional guides.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Connecticut:
Frequently Asked Questions
Where is the 959 area code located?
The 959 area code serves northern and eastern Connecticut as an overlay of 860, covering Hartford, New Britain, West Hartford, Manchester, New London, Norwich, and Middletown.
Why does 959 cover the same area as 860?
959 is an overlay added in 2014 because the 860 region ran short of available phone numbers. Both codes serve the exact same geographic area.
Do I have to dial 10 digits for 959?
Yes. Overlay area codes like 959 always require 10-digit dialing for local calls.
Is the 959 area code Eastern Time?
Yes, the 959 area code follows Eastern Time (EST/EDT), like all of Connecticut.
Related 959 Guides
- Is a 959 call safe? Read Is area code 959 a scam? Spam & safety guide.
- Local coverage: see the Hartford area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.