Area Code 959
Connecticut
Area code 959 serves Connecticut, primarily Hartford, in the Eastern Time (ET) time zone. It is an overlay area code sharing territory with area code 860.
Overlay Area Code
This area code is part of an overlay region, meaning the same geographic area is served by multiple area codes. Overlay codes were introduced to meet growing demand for phone numbers without requiring existing customers to change their numbers.
This area code shares its geographic region with: area code 860 (Hartford).
In service since: 30-Aug-2014
History
Area code 959 serves as an overlay for the same territory as area code 860. It was introduced in 2014 to provide additional phone number capacity for the region. It shares its territory with area code area code 860.
Geographic Coverage
Area code 959 serves Connecticut, primarily the Hartford area, in the Eastern Time (ET). It covers 119 communities. The geographic center of this area code is approximately 41.69°N, 72.57°W.
Geographic Coverage
State
CT
Major Cities
- Hartford
- New Britain
- West Hartford
- Bristol
- East Hartford
- Middletown
- Norwich
- Manchester
- Torrington
- Newington
- New London
- Wethersfield
- Willimantic
- Storrs
- Windsor Locks
- Kensington
- Groton
- Oakville
- Conning Towers-Nautilus Park
- Southwood Acres
- Glastonbury Center
- New Milford
- Thompsonville
- Putnam
and 95 more cities
Time Zone
- Eastern Time (ET)
Current Time
County Coverage
Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 959).
| County | Population | Share |
|---|---|---|
| Hartford, CT | 896,078 | 49.0% |
| New London, CT | 274,117 | 15.0% |
| Middlesex, CT | 184,735 | 10.1% |
| Litchfield, CT | 176,384 | 9.6% |
| Tolland, CT | 166,987 | 9.1% |
| Windham, CT | 126,640 | 6.9% |
| Fairfield, CT | 3,525 | 0.2% |
Call Context
This area code serves the same geographic region as area code 860 in Connecticut. It was introduced as an overlay of area code 860, meaning both codes serve the same geographic territory.
Nearby Area Codes
Area codes geographically closest to 959.
Other Area Codes in Connecticut
Area codes that also serve Connecticut, linked for easy comparison.
Frequently Asked Questions
Common questions about area code 959 and how phone numbering works.
Phone numbers are assigned based on where the number was originally provisioned, not the caller's current location. Mobile phones retain their number when users move, and businesses may use numbers from regions where they don't have a physical presence. VoIP services can also provision numbers from virtually any area code.
Yes, mobile phones can have numbers from any area code in the region they were activated. Wireless carriers assign numbers from available pools regardless of phone type. When users change carriers or move to new areas, they typically keep their original number, which may have a different area code than their current location.
Start by looking up the area code on this site to understand its general geographic region. For the specific number, options include using your carrier's caller ID features or checking public directories. If you suspect fraud, you can report it to the FTC. To file a complaint about robocalls or spoofed numbers, visit the FCC Consumer Complaint Center. You can also register your number with the National Do Not Call Registry to reduce unwanted calls. Keep in mind that caller ID can display any name the caller chooses to set.
When an area's pool of available phone numbers runs low, regulators may introduce an "overlay" area code that covers the same geographic territory as the original. Both codes coexist, and new numbers are assigned from whichever code has availability. This area code shares its region with area code 860, area code 860. Learn more in our overlay vs split guide.
While Portland is a prominent city in this area code's coverage, the code serves the broader surrounding region as well. Area codes are assigned geographically and typically cover multiple cities, towns, and communities beyond any single anchor city.
Area code 959 covers multiple communities across its region. The primary city associated with this code is Portland, along with other towns and suburbs in the surrounding area. The full list of communities served by this area code can be found in the coverage section of this page.