959 area code
Area code 959 is in Connecticut. It covers Hartford, New Britain, West Hartford and 211 other places: 237 ZIP codes in Hartford, New London, Middlesex and 3 other counties. Local time there is , Eastern Time. In service since 2014 as an overlay: it covers the same area as 860, so a number from there can have either code.
- State
- Connecticut
- Time zone
- Eastern
- Largest city
- Hartford
- Overlays
- 860
- In service since
- 2014
- Rate centres
- 53
- Prefixes assigned
- 163 (1,630,000 numbers)
Who calls from a 959 number
NANPA records the carrier each block of 959 numbers is assigned to. Of the 1.4 million 959 numbers assigned, 66% are with cable, internet-calling, business and other carriers (Onvoy, Teleport Communications (AT&T) and Bandwidth); 34% with mobile carriers (Verizon Wireless, T-Mobile and AT&T Mobility).
That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.
| Carrier | Kind | Share |
|---|---|---|
| Onvoy | Cable, VoIP, other | 40% |
| Verizon Wireless | Mobile | 16% |
| T-Mobile | Mobile | 11% |
| AT&T Mobility | Mobile | 5% |
| Teleport Communications (AT&T) | Cable, VoIP, other | 5% |
| Bandwidth | Cable, VoIP, other | 3% |
An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.
Places in area code 959
The 51 places with a telephone rate centre of their own using 959, largest first. Each links to its ZIP codes.
Nearby places using 959
These places have no rate centre of their own in NANPA's records; the nearest one uses 959. Near an area-code boundary that can be wrong for part of a town.
- West Hartford
- East Hartford
- Newington
- Vernon Rockville
- Wethersfield
- Rocky Hill
- Storrs Mansfield
- Avon
- Ellington
- Tolland
- Cromwell
- Suffield
- Uncasville
- Old Lyme
- Burlington
- Groton
- Conning Towers-Nautilus Park
- Southwood Acres
- Thompsonville
- Unionville
- East Lyme
- Oakdale
- Glastonbury Center
- Woodstock
- Westbrook
- New Hartford
- Marlborough
- Hazardville
- Portland
- Sherwood Manor
- Willington
- Hebron
- South Glastonbury
- East Granby
- East Haddam
- North Stonington
- Lake Pocotopaug
- Bolton
- Preston
- Pomfret Center
- North Grosvenordale
- Long Hill
- Salem
- Ashford
- Thompson
- Collinsville
- Chester
- Quaker Hill
- Amston
- Broad Brook
- West Suffield
- Old Mystic
- Barkhamsted
- Waterford
- Andover
- Windham
- Northwest Harwinton
- Goshen
- Sterling
- Moosup
ZIP codes in area code 959
237 ZIP codes in 175 towns, by the town each is mailed to, largest first. Each links to its own page.
Where 959 numbers are issued
NANPA's rate centres with the most 959 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.
| Rate centre | Place | Prefixes |
|---|---|---|
HARTFORD | Hartford | 37 |
NEWBRITAIN | New Britain | 8 |
NEW LONDON | New London | 7 |
NORWICH | Norwich | 6 |
TORRINGTON | Torrington | 6 |
WILLIMNTIC | Willimantic | 6 |
Counties
The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.
- Hartford County (90)
- New London County (38)
- Middlesex County (20)
- Tolland County (20)
- Litchfield County (34)
- Windham County (35)
Which code covers where you are now? What area code am I in? answers from your location.
Questions about area code 959
Where is area code 959?
Area code 959 is in Connecticut. It covers Hartford, New Britain, West Hartford and 211 other places: 237 ZIP codes in Hartford, New London, Middlesex and 3 other counties.
What ZIP codes are in area code 959?
237 ZIP codes, by the town each is mailed to: Hartford (36, 06101 to 06199), New Britain (4, 06050 to 06053), West Hartford (7, 06107 to 06137), Bristol (2, 06010 to 06011) and 171 more towns. The full list is on this page.
What time zone is area code 959 in?
Eastern time.
Is a 959 number a mobile or a landline?
It can be either. 34% of 959 numbers are assigned to mobile carriers and under 1% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.
What area codes overlay 959?
860. They cover the same area as 959, so a new number there can be given any of them.
Does a 959 number mean the caller is in Connecticut?
Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 959 call can come from anywhere.
Other area codes in Connecticut
All 4 Connecticut area codes, by area, with the cities each covers
Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.
Cite this page
zipcodes.pro. “Area code 959.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/959
Underlying data is public domain or openly licensed — sources, vintages and licences.