959 area code — Hartford, CT geographic
- State
- Connecticut
- Major area
- Hartford
- Time zone
- Eastern
- In service since
- 2014-08-30
- Split from
- 860
- Overlay complex
- 860 / 959
- Active prefixes
- 157
- Rate centers
- 52
- Carriers
- 32
- Projected exhaust
- 1Q 2091
959 is the area code for Hartford, Connecticut, in service since August 30, 2014, Eastern time. It is part of the 860/959 overlay complex — these codes share the same territory. Note that porting and VoIP mean a 959 number can be used from anywhere — the code marks where the number was assigned.
157 central-office prefixes are currently active in this code, spread across 32 code-holding carriers. Thousands-block pooling applies to 157 prefixes, so a single prefix can belong to several carriers. Its prefixes map to 52 distinct rate centers.
Practical takeaway: the 959 label narrows geography to Connecticut, the prefix narrows it to a locality, and neither authenticates a caller. Verification means calling back through a number you found yourself.
Dialing: 10D locally, 10D to other codes (1+10 permissible at service provider discretion).
NANPA projects numbering capacity for the 860/959 complex to exhaust in 1Q 2091.
959 was created from 860 in 2014.
Largest localities in 959
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Hartford | 36 | 860 |
| New Britain | 8 | 860 |
| New London | 6 | 860 |
| Willimantic | 6 | 860 |
| Norwich | 6 | 860 |
| Torrington | 5 | 860 |
| Southington | 4 | 860 |
| Deep River | 4 | 860 |
| Bristol | 4 | 860 |
| Farmington | 3 | 860 |
FAQ
Will 959 run out of numbers?
NANPA's current forecast projects exhaust in 1Q 2091 — decades of capacity remain.
Why am I getting spam calls from 959 numbers?
Scammers spoof recognizable area codes so calls look local or familiar. A displayed 959 number does not prove the call originated there — see our guide to spotting spoofed calls.
Where is a 959 number from?
959 is assigned to Hartford and surrounding areas of Connecticut in the Eastern time zone. The three digits after the area code (the prefix) narrow it down to a rate center.
Is 959 a toll-free number?
No. 959 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Why do 860 and 959 cover the same place?
They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 860/959 complex shares one service area, and local calls are dialed with 10 digits.