CallataGuidesGet a local business phone number in New Castle, IN
New Castle's area code, prefixes and carriers from NANPA records, and how to put a New Castle number in front of your customers.
- Area code
- 765
- Exchanges
- 18NANPA-assigned
- Carriers
- 8
- Population
- 17,382Census 2024 est.
Area codes in New Castle
New Castle, in Henry County, Indiana, had a Census-estimated population of 17,382 in July 2024. All 18 exchanges NANPA lists for its rate center are in area code 765. New Castle is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 765 are dialed as seven digits and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 765 | 18 | 100% | 1997 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds New Castle phone exchanges
8 carriers hold the 18 exchanges assigned to New Castle's rate center. Indiana Bell Tel CO INC has the most, with 7. 14 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| Indiana Bell Tel CO INC | 7 | 39% |
| New Cingular Wireless PCS, LLC - Il | 3 | 17% |
| Cellco Partnership d/b/a Verizon Wireless - In | 2 | 11% |
| Omnipoint Communications Midwest Operations, LLC | 2 | 11% |
| Peerless Network of Indiana, LLC - In | 1 | 5.6% |
| Level 3 Telecom of Indiana, LP - In | 1 | 5.6% |
| Level 3 Communications, LLC - In | 1 | 5.6% |
| Teleport Communications America, LLC - In | 1 | 5.6% |
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 prefixes for New Castle
These are the central office codes NANPA records for New Castle. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 765 | 388, 422, 465, 515, 518, 519, 520, 521, 524, 527, 529, 545, 575, 591, 593, 599, 624, 686 |
Source: NANPA utilized central office code file.
How local numbers work in New Castle
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. New Castle's numbers are rated to the NEW CASTLE rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a New Castle number.
If your business already has a New Castle number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
New Castle is part of the New Castle, IN micropolitan area, home to 49,081 people in 2024. County Business Patterns counted 833 business establishments in the New Castle, IN micropolitan area in 2023, employing 10,929 people. The largest sectors by establishment count are retail trade (134), other services (except public administration) (111), and health care and social assistance (102).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 29 | 528 | 18.2 |
| Full-service restaurants | 25 | 480 | 19.2 |
| Plumbing, heating and air-conditioning contractors | 18 | 122 | 6.8 |
| Landscaping services | 17 | 61 | 3.6 |
| Insurance agencies and brokerages | 16 | 72 | 4.5 |
| Dental offices | 12 | 149 | 12.4 |
| Residential remodelers | 12 | — | — |
| Physician practices | 10 | — | — |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a New Castle business line
Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.
If you already have a number in New Castle, 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 13 users, the rounded average establishment size in the New Castle, IN micropolitan area. At list prices checked September 28, 2026, that is $324.35 a month on Ooma Office Pro and $390.00 on RingCentral RingEX Core. On Callata the same 13 people cost $259.00 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 | $259.00 | $3,108.00 |
| Quo (Starter) | $19.00 per user | $247.00 | $2,964.00 |
| Nextiva (Core) | $23.00 per user | $299.00 | $3,588.00 |
| Ooma (Office Pro) | $24.95 per user | $324.35 | $3,892.20 |
| Dialpad (Standard) | $27.00 per user | $351.00 | $4,212.00 |
| RingCentral (RingEX Core) | $30.00 per user | $390.00 | $4,680.00 |
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 New Castle, IN?
765. All exchanges NANPA lists for New Castle are in 765.
How many phone companies have exchanges in New Castle?
8, holding 18 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing New Castle 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 New Castle?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 13 users come to $259.00 a month. For comparison, 13 users on RingCentral RingEX Core list at $390.00 a month (checked September 28, 2026).