Caller ID for
Area code 959
Area code 959 Hartford, Connecticut
Area code 959 is in Connecticut, with numbers assigned in Hartford, New Britain, New London and 36 more places. It’s 12:14 AM there now.
- State
- Connecticut4 area codes in Connecticut
- Time zone
- Eastern12:14 AM there now
- Exchanges
- 16339 places
- Overlay
- 860Same area, 10-digit dialing
- No sign-up
- We never contact the number
- Spam risk included
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Where area code 959 is
Numbers in 959 are assigned to 39 places in 6 counties: Hartford County, New London County, Litchfield County, Middlesex County, Windham County and Tolland County.
Hartford has the most, 23% of the exchanges; the rest are spread across 38 other places.
- Hartford37
- New Britain8
- New London7
- Torrington6
- Willimantic6
- Norwich6
- Deep River Center4
- Bristol4
- Glastonbury Center4
- Plainfield Village4
- Essex Village3
- Middletown3
- Clinton3
- Colchester2
- Watertown2
- Storrs2
- Canaan2
- Old Saybrook Center2
- Rockville2
- Canton Valley2
- Pawcatuck2
- Mystic2
- Kensington2
- Coventry Lake2
Phone companies in 959
163 blocks of numbers in 959 are held by 31 phone companies. The most belong to Inteliquent (46), Ton80 Communications (27) and T-Mobile (15).
A large share, about 72%, belongs to competitive and internet phone carriers; wireless networks hold 20% and local phone and cable companies 8%.
A block’s holder is the company it was first assigned to; numbers can move to other carriers since.
History and overlays
959 went into service in 2014, added to the area of 860.
860 (since 1995) shares the same area, so a new number there can get any of these codes and local calls are dialed with all 10 digits.
101 new exchanges were assigned since 2021, the latest in September 2026.
Calling 959
It’s 12:14 AM Eastern time in 959 right now.
From elsewhere in the U.S., dial 1, 959 and the 7-digit number; inside the area, all 10 digits too.
Nearby area codes
Connecticut has 4 area codes: 203, 475, 860 and 959.
- 413 · Springfield, MA · about 42 mi
- 475 · New Haven, CT · about 43 mi
- 203 · New Haven, CT · about 44 mi
- 401 · Providence, RI · about 59 mi
- 934 · Riverhead, NY · about 62 mi
- 631 · Brentwood, NY · about 63 mi
From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.
Map of the 959 area code
Map of the 959 area code around Hartford, New Britain and New London, Connecticut.
Cities on the map
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Questions about 959
Where is area code 959?
In Connecticut, covering Hartford, New Britain and New London and other places across 6 counties.
What time zone is 959 in?
Eastern time. It was 12:14 AM there when this page loaded.
Is 959 an overlay?
Yes. 860 serves the same area, so dial all 10 digits for local calls.
Which phone companies have 959 numbers?
31 companies hold blocks; the most belong to Inteliquent, Ton80 Communications and T-Mobile. About 20% of blocks are wireless.
Is 959 running out of numbers?
Not on record. 101 new exchanges have been assigned since 2021.