Area code 860
Where 860 is, how it is dialed, which carriers hold its numbers and how many of its codes are in use, from NANPA's 10/01/2026 files.
- State
- CT
- In service
- 1995
- Assigned codes
- 782of 800 possible
- Carriers
- 22
About area code 860
Area code 860 is a geographic area code in Connecticut, in service since August 28, 1995, according to the North American Numbering Plan Administrator (NANPA). It is an overlay: 860 and 959 cover the same territory, so neighbors on the same street can have different area codes. It is in the Eastern time zone. The places with the most assigned exchanges include Hartford, New London, Norwich, Middletown, and New Britain. By population, its largest named places are Hartford, New Britain, Bristol, Manchester, and Middletown.
| Item | Value |
|---|---|
| State | Connecticut |
| In service since | August 28, 1995 |
| Assigned by NANPA | April 6, 1995 |
| Overlay | Yes, with 959 |
| Parent area code (NANPA) | 203 |
| Time zone | Eastern |
| Local calls within the code | ten digits (area code plus number) |
| Assigned central office codes | 782 |
| Rate centers with codes | 58 |
| Carriers holding codes | 22 |
| Pooled codes | 525 |
| Codes assigned since 2020 | 5 |
| Relief planning in progress | No |
Source: NANPA NPA report and utilized central office code file, both dated 10/01/2026.
Where 860 numbers are local
860 holds 39% of the 2,020 central office codes assigned in Connecticut, the 2nd most of the state's 4 codes. 46 Census places could be matched to rate centers with 860 exchanges; the most populous are Hartford (122,000), New Britain (75,871), Bristol (62,195), and Manchester (59,948). For a storefront or service area inside 860, the place pages show which prefixes are rated local there.
| Place | Population (2024) | Area codes | Exchanges | Carriers |
|---|---|---|---|---|
| Hartford, CT | 122,129 | 860, 959 | 297 | 33 |
| New Britain, CT | 75,871 | 860, 959 | 34 | 11 |
| Bristol, CT | 62,195 | 860, 959 | 19 | 8 |
| Manchester, CT | 59,948 | 860, 959 | 21 | 9 |
| Middletown, CT | 48,616 | 860, 959 | 31 | 10 |
| Southington, CT | 44,197 | 860, 959 | 23 | 12 |
| Enfield, CT | 41,140 | 860, 959 | 20 | 10 |
| Norwich, CT | 39,993 | 860, 959 | 41 | 13 |
| Torrington, CT | 35,673 | 860, 959 | 21 | 10 |
| Glastonbury, CT | 35,553 | 860, 959 | 21 | 11 |
| Windsor, CT | 29,658 | 860 | 20 | 7 |
| New Milford, CT | 28,745 | 860 | 12 | 5 |
| Farmington, CT | 28,189 | 860, 959 | 23 | 7 |
| New London, CT | 28,081 | 860, 959 | 47 | 12 |
| Simsbury, CT | 25,353 | 860 | 16 | 7 |
Population: Census Vintage 2024 estimates for the matched place. Exchanges and carriers: NANPA utilized code file.
Dialing 860 numbers
According to NANPA's dialing-plan data, local calls within 860 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits. Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere. NANPA's dialing-plan note for this code reads: "1+10 permissible at service provider discretion"
Who holds 860 exchanges
22 carriers hold the 782 central office codes assigned in 860. Southern New England Telco d/b/a Frontier Comm of CT has the most, with 325 (42%). 525 of the codes (67%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. Numbers can move between carriers through porting, so a code's holder tells you where the block started, not where every number lives now.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Southern New England Telco d/b/a Frontier Comm of CT | 325 | 42% |
| Mcimetro Access Transmission Services LLC | 63 | 8.1% |
| Cellco Partnership d/b/a Verizon Wireless - CT | 60 | 7.7% |
| Teleport Communications America, LLC - CT | 56 | 7.2% |
| Paetec Itel, LLC | 50 | 6.4% |
| New Cingular Wireless PCS, LLC - DC | 44 | 5.6% |
| Metropcs, INC. | 29 | 3.7% |
| Omnipoint Communications, INC. - CT | 28 | 3.6% |
| Level 3 Communications, LLC - CT | 28 | 3.6% |
| Comcast Ip Phone, LLC | 26 | 3.3% |
| Onvoy, LLC - CT | 16 | 2.0% |
| Spok, INC. | 12 | 1.5% |
Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.
Local calling areas in 860
NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 860 has codes in 58 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.
| Rate center (NANPA) | Place | Codes |
|---|---|---|
| HARTFORD | Hartford, CT | 260 |
| NEW LONDON | New London, CT | 40 |
| NORWICH | Norwich, CT | 35 |
| MIDDLETOWN | Middletown, CT | 28 |
| NEWBRITAIN | New Britain, CT | 26 |
| WINDSOR | Windsor, CT | 20 |
| FARMINGTON | Farmington, CT | 20 |
| MANCHESTER | Manchester, CT | 20 |
| WILLIMNTIC | not matched | 19 |
| SOUTHINGTN | Southington, CT | 19 |
| ENFIELD | Enfield, CT | 17 |
| GLASTONBY | Glastonbury, CT | 17 |
| SIMSBURY | Simsbury, CT | 16 |
| TORRINGTON | Torrington, CT | 15 |
| OLD SAYBRK | Old Saybrook, CT | 15 |
| WINDSORLKS | Windsor Locks, CT | 15 |
| BRISTOL | Bristol, CT | 15 |
| NEWMILFORD | New Milford, CT | 12 |
| PUTNAM | Putnam, CT | 11 |
| ROCKVILLE | not matched | 10 |
| HARWINTON | Harwinton, CT | 9 |
| STORRS | not matched | 9 |
| DEEP RIVER | Deep River, CT | 8 |
| PLAINVILLE | Plainville, CT | 8 |
| MYSTIC | not matched | 7 |
Top 25 of 58 rate centers.
How full is area code 860?
An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 782 are assigned in 860, 98% of 800. 5 were assigned in 2020 or later.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 54 | 52% |
| 2010s | 44 | 43% |
| 2020s | 5 | 4.9% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
A local 860 number on Callata
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in area code 860, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.
Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.
Frequently asked questions
Where is area code 860?
860 is a geographic area code in Connecticut. Places with the most assigned exchanges include Hartford, New London, Norwich, and Middletown.
What time zone is area code 860 in?
NANPA lists 860 in the Eastern time zone.
When did area code 860 go into service?
NANPA records an in-service date of August 28, 1995. The code was assigned on April 6, 1995.
Is 860 an overlay area code?
Yes. It shares its territory with 959.
Can my business get a 860 phone number?
Callata includes up to 3 local numbers on its $99/month plan (5 users included). Which 860 numbers are open depends on carrier inventory when you choose, and you can port an existing number for free.