959 Area Code: Hartford, Connecticut
Area code 959 serves Hartford, New Britain and New London, Connecticut in the Eastern time zone, in service since 2014. Consumers have filed 1,005 unwanted-call complaints against 904 different 959 numbers, 196 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 959 at a glance
- State
- Connecticut
- Main cities
- Hartford, New Britain, New London, Willimantic, Norwich, Torrington + 46 more
- Counties
- Capitol Planning Region, Southeastern Connecticut Planning Region, Northwest Hills Planning Region, Lower Connecticut River Valley Planning Region + 2 more
- Local time
- —Eastern
- In service since
- August 30, 2014
- Overlay of
- 860
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 53 rate centers, 163 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 959 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 959 numbers are about
606 FTC Do Not Call complaints about 959 numbers since Jul 24. The most common named subject is debt-relief pitches, at 33% of complaints (94% of those were recorded messages). Overall, 86% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified21636%
- Debt reduction20133%
- Dropped call / no message6911%
- Impostor (government, business, family)559%
- No subject given376%
- Warranties & protection plans71%
- Medical & prescriptions61%
FCC complaints by call type, last 2 years
- Prerecorded Voice7467%
- Live Voice2926%
- Text Message76%
Live-voice calls are from a person; prerecorded calls are robocalls.
When 959 spam calls come in
29% of complaints that give a call time describe calls between 10am and 1pm. 91% came Monday to Friday, most on Thursdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
220 FTC complaints about 959 numbers in the last four weeks, up 41% on the four weeks before. FCC complaints about 959 numbers peaked in 2024 (70); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
Only 22% of the FTC complaints about 959 numbers came from Connecticut residents; the most came from California, Florida and Pennsylvania. 959 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Where complainants live
- Connecticut13322%
- California539%
- Florida376%
- Pennsylvania366%
- Texas366%
Likely campaigns using 959 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 959 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (959) 233-xxxxcampaign | 28 | 25 | Onvoy (Sinch) | Essex |
| (959) 356-xxxx | 11 | 10 | Fractel, LLC | Haddam |
| (959) 243-xxxx | 10 | 10 | Onvoy (Sinch) | Rockville |
| (959) 238-xxxx | 8 | 7 | Nuso, LLC | Putnam |
| (959) 946-xxxx | 7 | 7 | Fractel, LLC | Stafford Springs |
Carriers operating in 959
NANPA has assigned 163 959 prefixes (NPA-NXX central-office codes) across 53 rate centers: 21% to wireless carriers, 78% to landline and VoIP operators; 100% are pooled blocks shared by several carriers. 10 prefixes were assigned in the last 12 months (newest 2026-09-15). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 46(28%) | 31 | 2026-09-15 |
| Ton80 Communications, LLC | Competitive / VoIP (CLEC) | 27(17%) | 27 | 2022-03-17 |
| Verizon Wireless (Cellco Partnership) | Wireless | 14(9%) | 6 | 2026-07-31 |
| Omnipoint Communications, INC. | Wireless | 14(9%) | 9 | 2026-08-26 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 9(6%) | 9 | 2021-02-16 |
| Fractel, LLC | Competitive / VoIP (CLEC) | 8(5%) | 8 | 2021-03-16 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 6(4%) | 3 | 2022-12-06 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 5(3%) | 5 | 2022-10-04 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 3(2%) | 2 | 2025-02-26 |
| Barr Tel Usa, INC. | Unclassified | 2(1%) | 2 | 2022-03-04 |
| Boost Subscriberco L.L.C. | Wireless | 2(1%) | 1 | 2025-08-06 |
| Eon Telecom, INC. | Competitive / VoIP (CLEC) | 2(1%) | 2 | 2024-10-07 |
Largest rate centers (exchanges) by prefixes: Hartford (37), New Britain (8), New London (7), Norwich (6), Torrington (6), Willimantic (6), Bristol (4), Deep River (4), Glastonbury (4), Southington (4). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 959 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 959 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Connecticut
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Connecticut Attorney General.
- Connecticut formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 959: questions answered from the data
Where is area code 959?
Area code 959 serves Hartford, New Britain and New London, Connecticut, covering Capitol Planning Region, Southeastern Connecticut Planning Region and Northwest Hills Planning Region and 3 more counties. It has been in service since August 30, 2014.
What time zone is area code 959 in?
Area code 959 is in the Eastern time zone (UTC−5, or UTC−4 during daylight saving time). The current local time is shown at the top of this page.
What are calls from 959 numbers usually about?
Since Jul 24, consumers filed 606 FTC Do Not Call complaints about 959 numbers. The most common named subject was debt-relief pitches: 33% of complaints, 94% of them recorded messages. Across all subjects, 86% of callers who answered the question said the call was a robocall.
When do 959 spam calls happen?
29% of the complaints that give a call time describe calls between 10am and 1pm, and 91% came on weekdays, most often on Thursday. Times are as consumers reported them.
Are calls from 959 numbers really local?
Not necessarily. Only 22% of the FTC complaints about 959 numbers came from Connecticut residents; the most came from California, Florida and Pennsylvania. 959 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Are 959 robocalls increasing?
In the four weeks to Oct 15, consumers filed 220 FTC complaints about 959 numbers, 41% more than the four weeks before.
How do I report a 959 scam call in Connecticut?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Connecticut, the Connecticut Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.