CallataGuidesGet a local business phone number in Killingworth, CT
Killingworth's area codes, prefixes and carriers from NANPA records, and how to put a Killingworth number in front of your customers.
- Area code
- 860 / 959
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 6,284Census 2024 est.
Killingworth area codes
With 6,284 residents in the Census 2024 estimate, Killingworth sits in Lower Connecticut River Valley Planning Region, Connecticut. NANPA lists 4 exchanges for its rate center across 2 area codes; 860 has the most (2, 50%). 860 is part of an overlay with 959, so a new local number in Killingworth may carry any of those codes depending on which have numbers available. Killingworth 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.
Killingworth exchanges by carrier
4 carriers hold the 4 exchanges assigned to Killingworth's rate center. Teleport Communications America, LLC - CT has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Killingworth can come from any of these blocks; once it is yours, porting lets it move between providers.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Teleport Communications America, LLC - CT | 1 | 25% |
| Southern New England Telco d/b/a Frontier Comm of CT | 1 | 25% |
| AT&T - Local | 1 | 25% |
| Onvoy, LLC - CT | 1 | 25% |
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.
Killingworth phone prefixes
Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Killingworth's rate center (KILLINGWTH). The earliest assignment date recorded in the file for these codes is 2020. 2 of the 4 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 860 | 452, 663 |
| 959 | 678, 955 |
Source: NANPA utilized central office code file.
How local numbers work in Killingworth
NANPA ties every exchange to a rate center. For Killingworth that is KILLINGWTH, so a number from one of these exchanges reads as local to people in and around Killingworth.
If your business already has a Killingworth number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Killingworth 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 Killingworth
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 Killingworth, 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.
The comparison below uses 19 users, the rounded average establishment size in the Hartford, CT metro area. At list prices checked September 28, 2026, that is $474.05 a month on Ooma Office Pro and $570.00 on RingCentral RingEX Core. 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 Killingworth, CT?
Killingworth has exchanges in 860 and 959; 860 has the most.
How many phone companies have exchanges in Killingworth?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Killingworth 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 Killingworth?
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).