The 959 area code covers the same area as 860, including Hartford, New London and 51 more places in Connecticut.
Area code 959 is in Connecticut, on Eastern Time. In the 959 area, phone numbers are given out most in Capitol Region, then Southeastern Connecticut and Lower Connecticut River Valley counties. It has been in service since August 30, 2014. 860 covers the same area, so two neighbours can have different area codes.
- Where
- 7 counties in Connecticut, mostly Capitol Region, Southeastern Connecticut County and Lower Connecticut River Valley County
- Time zone
- Eastern Time
- In service since
- August 30, 2014
- Shares its area with
- 860 (since 1995)
- Prefixes in use
- 163
- How to dial
- Local calls need all 10 digits: 959-555-0142.
Find out who called you from a 959 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (959) number is on today, use our free carrier lookup.
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Hartford holds 23% of the phone prefixes in area code 959.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 163 prefixes in use shows where 959 numbers are actually given out.
- Hartford37 prefixes, 23%
- New Britain8 prefixes, 5%
- New London7 prefixes, 4%
- Torrington6 prefixes, 4%
- Willimantic6 prefixes, 4%
- Norwich6 prefixes, 4%
- Southington4 prefixes, 2%
- Deep River4 prefixes, 2%
Also served: Willimantic, Southington, Enfield and Glastonbury and 41 smaller places.
Of the carriers named here, Ton80 Communications holds the most phone number prefixes in area code 959: 27 of 163.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 163 prefixes in use in 959 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Ton80 Communications | 27 | 17% |
| T-MobileMobile network | 14 | 9% |
| Fractel | 8 | 5% |
| Teleport (AT&T)AT&T's business phone network | 6 | 4% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 5 | 3% |
| AT&T MobilityMobile network | 3 | 2% |
| 25 other carriers | 100 | 61% |
100% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
959 started in 2014 as an overlay on 860, and its ground has not changed since.
2014
959 starts on August 30, 2014, as an overlay on 860: new numbers on the same ground.
A 959 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 959 are 203, 413 and 631.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 959.
Where is area code 959?
959 covers Hartford, New London, Norwich and Middletown and 49 more places in Connecticut. In the 959 area, phone numbers are given out most in Capitol Region, then Southeastern Connecticut and Lower Connecticut River Valley counties.
What state is area code 959 in?
Connecticut. 959 is a Connecticut area code on Eastern Time.
What cities use area code 959?
The places holding the most 959 prefixes are Hartford, New London, Norwich, Middletown, New Britain, Windsor, Farmington and Manchester, out of 53 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 959?
No single phone company owns 959. NANPA's records list its 163 prefixes across many carriers, and the ones named on this page include Ton80 Communications, T-Mobile and Fractel. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 959 in?
959 is on Eastern Time.
When did area code 959 start?
959 went into service on August 30, 2014, as an overlay on 860: new numbers for the same area.
Is 959 the same area as 860?
Yes. 860 (since 1995) covers the same ground as 959. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 959 number?
Local calls need all 10 digits: 959-555-0142.
Is 959 a toll-free number?
No. 959 is a regular area code for Hartford and New London in Connecticut, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 959?
The closest are 203/475 (New Haven, Connecticut), 413 (Springfield, Massachusetts), 631/934 (Brentwood, New York) and 401 (Providence, Rhode Island), measured between the centres of each area.
Who called me from a 959 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 959 a scam?
959 is a real Connecticut area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.