CallataGuidesGet a local business phone number in Castleton-on-Hudson, NY
Castleton-on-Hudson's area codes, prefixes and carriers from NANPA records, and how to put a Castleton-on-Hudson number in front of your customers.
- Area code
- 518 / 838
- Exchanges
- 6NANPA-assigned
- Carriers
- 6
- Population
- 1,471Census 2024 est.
Area codes in Castleton-on-Hudson
With 1,471 residents in the Census 2024 estimate, Castleton-on-Hudson sits in Rensselaer County, New York. NANPA lists 6 exchanges for its rate center across 2 area codes; 518 has the most (3, 50%). 518 is part of an overlay with 838, so a new local number in Castleton-on-Hudson may carry any of those codes depending on which have numbers available. Castleton-on-Hudson is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 518 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number).
Who holds Castleton-on-Hudson phone exchanges
6 carriers hold the 6 exchanges assigned to Castleton-on-Hudson's rate center. TC Systems, INC. - NY has the most, with 1. 6 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 |
|---|---|---|
| TC Systems, INC. - NY | 1 | 17% |
| Verizon New York, INC. | 1 | 17% |
| Paetec Itel, LLC | 1 | 17% |
| Coretel New York, INC. - NY | 1 | 17% |
| Fractel, LLC | 1 | 17% |
| Onvoy Spectrum, LLC | 1 | 17% |
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 Castleton-on-Hudson
These are the central office codes NANPA records for Castleton-on-Hudson. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2019. 2 of the 6 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 518 | 336, 732, 754 |
| 838 | 384, 599, 883 |
Source: NANPA utilized central office code file.
When Castleton-on-Hudson's exchanges were assigned
Assignment dates show when each block of Castleton-on-Hudson numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2010s | 1 | 33% |
| 2020s | 2 | 67% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
Rate centers and local calling in Castleton-on-Hudson
NANPA ties every exchange to a rate center. For Castleton-on-Hudson that is CASTLETON, so a number from one of these exchanges reads as local to people in and around Castleton-on-Hudson.
Keeping an existing Castleton-on-Hudson number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 518 when you pick it.
Who does business near Castleton-on-Hudson
Castleton-on-Hudson is part of the Albany-Schenectady-Troy, NY metro area, home to 913,000 people in 2024. County Business Patterns counted 21,425 business establishments in the Albany, NY metro area in 2023, employing 362,110 people. The largest sectors by establishment count are retail trade (2,879), professional, scientific, and technical services (2,576), and health care and social assistance (2,450).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 803 | 13,920 | 17.3 |
| Limited-service restaurants | 751 | 9,774 | 13.0 |
| Residential remodelers | 478 | 1,411 | 3.0 |
| Physician practices | 451 | 8,922 | 19.8 |
| Law offices | 439 | 3,232 | 7.4 |
| Landscaping services | 386 | 1,473 | 3.8 |
| Dental offices | 317 | 2,653 | 8.4 |
| Insurance agencies and brokerages | 295 | 1,945 | 6.6 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Castleton-on-Hudson 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.
If you already have a number in Castleton-on-Hudson, 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 17 users, the rounded average establishment size in the Albany, NY metro area. At list prices checked September 28, 2026, that is $424.15 a month on Ooma Office Pro and $510.00 on RingCentral RingEX Core. On Callata the same 17 people cost $339.00 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 | $339.00 | $4,068.00 |
| Quo (Starter) | $19.00 per user | $323.00 | $3,876.00 |
| Nextiva (Core) | $23.00 per user | $391.00 | $4,692.00 |
| Ooma (Office Pro) | $24.95 per user | $424.15 | $5,089.80 |
| Dialpad (Standard) | $27.00 per user | $459.00 | $5,508.00 |
| RingCentral (RingEX Core) | $30.00 per user | $510.00 | $6,120.00 |
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 Castleton-on-Hudson, NY?
Castleton-on-Hudson has exchanges in 518 and 838; 518 has the most.
How many phone companies have exchanges in Castleton-on-Hudson?
6, holding 6 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Castleton-on-Hudson 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 Castleton-on-Hudson?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 17 users come to $339.00 a month. For comparison, 17 users on RingCentral RingEX Core list at $510.00 a month (checked September 28, 2026).