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Area Code Overview
Area code 860 is a geographic telephone area code in Connecticut that went into service on August 28, 1995. The geographic regions covered by this area code overlay has a population of approximately 1,729,388.
Overlay and Dialing Rules
- Area Code: 860
- State: Connecticut
- Type: General Purpose Code
- In Service Date: August 28, 1995
- Overlay Complex: 860/959
- Local Dialing Plan: This area does require you to dial the area code when calling locally.
Estimated Number of Assigned Phone Numbers in Area Code 860
This area code is tied for 90th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 1st out of 4.
6,210,000
Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 860
Wireless
2,085,000 assigned
33.57%
Wireline and VoIP
1,846,000 assigned
29.73%
Other / Unclassified
2,279,000 assigned
36.70%
Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 860
Estimated assigned wireless phone numbers: 2,085,000
Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.
Verizon Wireless 757,000 (36.31%)
T-Mobile 703,000 (33.72%)
AT&T Wireless 625,000 (29.98%)
Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 860
Estimated assigned wireline and VoIP phone numbers: 1,846,000
Bandwidth 300,000 (16.25%)
PAETEC ITEL, LLC 227,000 (12.30%)
Comcast Business 196,000 (10.62%)
Peerless Network 129,000 (6.99%)
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 60,000 (3.25%)
TERRA NOVA TELECOM INC. 52,000 (2.82%)
CHARTER IP ENABLED SERVICES, LLC 33,000 (1.79%)
YMAX COMMUNICATIONS CORP. - CT 11,000 (0.60%)
Other / Unclassified Assigned Numbering in Area Code 860
Estimated assigned other or unclassified phone numbers: 2,279,000
Verizon 1,930,000 (84.69%)
SPOK, INC. 120,000 (5.27%)
AMERICAN MESSAGING SERVICES, LLC 100,000 (4.39%)
TELEPORT COMMUNICATIONS AMERICA, LLC - CT 65,000 (2.85%)
CSC VOICE, LLC 17,000 (0.75%)
IDT AMERICA, CORP. - CT 17,000 (0.75%)
IP HORIZON LLC 16,000 (0.70%)
AQUIS COMMUNICATIONS, INC. 10,000 (0.44%)
BARR TEL USA, INC. - CT 4,000 (0.18%)
Cities and Towns in Area Code 860
Bristol, Connecticut Canaan, Connecticut Canterbury, Connecticut Canton, Connecticut Clinton, Connecticut Colchester, Connecticut Columbia, Connecticut Cornwall, Connecticut Coventry, Connecticut Danielson, Connecticut Deep River, Connecticut East Hampton, Connecticut Enfield, Connecticut Essex, Connecticut Farmington, Connecticut Glastonbury, Connecticut Haddam, Connecticut Hartford, Connecticut Harwinton, Connecticut Jewett City, Connecticut Kent, Connecticut Killingworth, Connecticut Lakeville, Connecticut Lebanon, Connecticut Ledyard, Connecticut Litchfield, Connecticut Lyme Station, Connecticut Manchester, Connecticut Middletown, Connecticut Moodus, Connecticut Mystic, Connecticut New Britain, Connecticut New London, Connecticut New Milford, Connecticut Niantic, Connecticut Norfolk, Connecticut Norwich, Connecticut Old Saybrook, Connecticut Pawcatuck, Connecticut Plainfield, Connecticut Plainville, Connecticut Putnam, Connecticut Rockville, Connecticut Sharon, Connecticut Simsbury, Connecticut Southington, Connecticut Stafford Springs, Connecticut Storrs, Connecticut Thomaston, Connecticut Torrington, Connecticut Washington, Connecticut Watertown, Connecticut Willimantic, Connecticut Windsor, Connecticut Winsted, Connecticut These geographic regions are also served by area code 959.
How These Figures Were Built
These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 860, not live customer counts.
Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.
They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.
Population data and locality matching provided by GeoNames.
Last refreshed: April 15, 2026 6:22 pm