CallataGuidesGet a local business phone number in New Castle, DE
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
- 302
- Exchanges
- 42NANPA-assigned
- Carriers
- 11
- Population
- 5,715Census 2024 est.
What area code is New Castle, DE?
With 5,715 residents in the Census 2024 estimate, New Castle sits in New Castle County, Delaware. All 42 exchanges NANPA lists for its rate center are in area code 302. New Castle is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 302 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.
| Area code | Exchanges here | Share | In service since | Overlay with | Time zone |
|---|---|---|---|---|---|
| 302 | 42 | 100% | 1947 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds New Castle phone exchanges
11 carriers hold the 42 exchanges assigned to New Castle's rate center. New Cingular Wireless PCS, LLC - DC has the most, with 14. 25 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| New Cingular Wireless PCS, LLC - DC | 14 | 33% |
| Verizon Delaware, INC. | 8 | 19% |
| Mcimetro Access Transmission Services LLC | 5 | 12% |
| Paetec Itel, LLC | 3 | 7.1% |
| Teleport Communications America, LLC - Pa | 3 | 7.1% |
| Omnipoint Communications Enterprises, LP | 2 | 4.8% |
| Coretel Delaware, INC. - De | 2 | 4.8% |
| Onvoy, LLC - De | 2 | 4.8% |
| Level 3 Communications, LLC - De | 1 | 2.4% |
| Metropcs, INC. | 1 | 2.4% |
| Scott Sabo d/b/a Allpage | 1 | 2.4% |
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.
New Castle phone prefixes
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. 7 of the 42 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 302 | 220, 221, 229, 276, 277, 317, 322, 323, 324, 325, 326, 327, 328, 356, 367, 370, 395, 400, 413, 414, 419, 501, 544, 561, 562, 568, 609, 613, 618, 620, 624, 639, 669, 689, 713, 740, 743, 750, 753, 787, 800, 991 |
Source: NANPA utilized central office code file.
When New Castle's exchanges were assigned
The table groups New Castle's exchanges by the decade NANPA recorded them as assigned.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 3 | 19% |
| 2010s | 6 | 38% |
| 2020s | 7 | 44% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in New Castle
What a caller sees as "local" is the area code plus prefix. In New Castle, those come from the NEW CASTLE rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 302 numbers available change over time; porting an existing number is free.
Businesses around New Castle
New Castle is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area, home to 6.3 million people in 2024. County Business Patterns counted 153,791 business establishments in the Philadelphia, PA-NJ-DE-MD metro area in 2023, employing 2,873,871 people. The largest sectors by establishment count are health care and social assistance (19,759), professional, scientific, and technical services (19,559), and retail trade (18,474).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 5,140 | 67,214 | 13.1 |
| Full-service restaurants | 4,454 | 95,642 | 21.5 |
| Physician practices | 3,301 | 51,683 | 15.7 |
| Law offices | 3,246 | 32,955 | 10.2 |
| Residential remodelers | 3,149 | 10,159 | 3.2 |
| Landscaping services | 2,642 | 17,236 | 6.5 |
| Dental offices | 2,556 | 20,014 | 7.8 |
| Insurance agencies and brokerages | 2,348 | 20,586 | 8.8 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A New Castle 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.
Porting a number you already use in New Castle is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
The comparison below uses 19 users, the rounded average establishment size in the Philadelphia, PA-NJ-DE-MD 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. Callata comes to $379.00 a month for 19 users ($99 a month with 5 users included, then $20 per additional user), below both.
| 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 New Castle, DE?
302. All exchanges NANPA lists for New Castle are in 302.
How many phone companies have exchanges in New Castle?
11, holding 42 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; 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).