CallataGuidesGet a local business phone number in Columbia, CT
Columbia's area codes, prefixes and carriers from NANPA records, and how to put a Columbia number in front of your customers.
- Area code
- 860 / 959
- Exchanges
- 5NANPA-assigned
- Carriers
- 4
- Population
- 5,359Census 2024 est.
Columbia area codes
Columbia, in Capitol Planning Region, Connecticut, had a Census-estimated population of 5,359 in July 2024. NANPA lists 5 exchanges for its rate center across 2 area codes; 860 has the most (4, 80%). 860 is part of an overlay with 959, so a new local number in Columbia may carry any of those codes depending on which have numbers available. Columbia is in the Eastern time zone.
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.
Columbia exchanges by carrier
4 carriers hold the 5 exchanges assigned to Columbia's rate center. Mcimetro Access Transmission Services LLC has the most, with 2. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Columbia can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Mcimetro Access Transmission Services LLC | 2 | 40% |
| Southern New England Telco d/b/a Frontier Comm of CT | 1 | 20% |
| Comcast Ip Phone, LLC | 1 | 20% |
| Onvoy Spectrum, LLC | 1 | 20% |
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.
Columbia phone prefixes
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Columbia. The earliest assignment date recorded in the file for these codes is 2021. 1 of the 5 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 860 | 228, 337, 359, 530 |
| 959 | 510 |
Source: NANPA utilized central office code file.
How local numbers work in Columbia
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Columbia's numbers are rated to the COLUMBIA rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Columbia number.
New local numbers are drawn from carrier inventory, so the exact 860 numbers available change over time; porting an existing number is free.
The local business market
Columbia is part of the Hartford-West Hartford-East Hartford, CT metro area, home to 1.2 million people in 2024. County Business Patterns counted 28,131 business establishments in the Hartford, CT metro area in 2023, employing 539,213 people. The largest sectors by establishment count are health care and social assistance (3,938), retail trade (3,787), and other services (except public administration) (3,043).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 1,073 | 19,450 | 18.1 |
| Limited-service restaurants | 902 | 12,271 | 13.6 |
| Physician practices | 850 | 16,133 | 19.0 |
| Landscaping services | 622 | 3,936 | 6.3 |
| Law offices | 614 | 4,703 | 7.7 |
| Dental offices | 565 | 4,150 | 7.3 |
| Insurance agencies and brokerages | 432 | 3,479 | 8.1 |
| Plumbing, heating and air-conditioning contractors | 380 | 4,181 | 11.0 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Columbia
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
If you already have a number in Columbia, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Hartford, CT metro area, 19 users on RingCentral RingEX Core come to $570.00 a month and on Ooma Office Pro $474.05, at month-to-month list prices checked September 28, 2026. On Callata the same 19 people cost $379.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $379.00 | $4,548.00 |
| Quo (Starter) | $19.00 per user | $361.00 | $4,332.00 |
| Nextiva (Core) | $23.00 per user | $437.00 | $5,244.00 |
| Ooma (Office Pro) | $24.95 per user | $474.05 | $5,688.60 |
| Dialpad (Standard) | $27.00 per user | $513.00 | $6,156.00 |
| RingCentral (RingEX Core) | $30.00 per user | $570.00 | $6,840.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Frequently asked questions
What area code is Columbia, CT?
Columbia has exchanges in 860 and 959; 860 has the most.
How many phone companies have exchanges in Columbia?
4, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Columbia business number?
Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.
How much is a business phone line in Columbia?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 19 users come to $379.00 a month. For comparison, 19 users on RingCentral RingEX Core list at $570.00 a month (checked September 28, 2026).