CallataGuidesGet a local business phone number in Colton, CA
Colton's area codes, prefixes and carriers from NANPA records, and how to put a Colton number in front of your customers.
- Area code
- 909 / 840 / 951
- Exchanges
- 52NANPA-assigned
- Carriers
- 17
- Population
- 53,528Census 2024 est.
Colton area codes
Colton city is a Census place in San Bernardino County, California, with an estimated 53,528 residents in 2024. NANPA lists 52 exchanges for its rate center across 3 area codes; 909 has the most (45, 87%). 909 is part of an overlay with 840, so a new local number in Colton may carry any of those codes depending on which have numbers available. Colton is in the Pacific time zone.
According to NANPA's dialing-plan data, local calls within 909 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.
Phone carriers in Colton
17 carriers hold the 52 exchanges assigned to Colton's rate center. Pacific Bell has the most, with 21. 35 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 |
|---|---|---|
| Pacific Bell | 21 | 40% |
| Spok, INC. | 5 | 9.6% |
| Cellco Partnership d/b/a Verizon Wireless - CA | 3 | 5.8% |
| New Cingular Wireless PCS, LLC | 3 | 5.8% |
| T-mobile USA, INC. | 2 | 3.8% |
| Fractel, LLC | 2 | 3.8% |
| Mcimetro Access Transmission Services LLC | 2 | 3.8% |
| Level 3 Communications, LLC - CA | 2 | 3.8% |
| Bandwidth.com CLEC, LLC - CA | 2 | 3.8% |
| Onvoy, LLC - CA | 2 | 3.8% |
| American Messaging Services, LLC | 2 | 3.8% |
| Commio, LLC | 1 | 1.9% |
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.
Exchanges (NPA-NXX) assigned in Colton
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Colton. The earliest assignment date recorded in the file for these codes is 2001. 6 of the 52 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 840 | 228, 235, 257, 281, 336, 600 |
| 909 | 213, 216, 219, 222, 254, 264, 370, 410, 420, 422, 423, 424, 426, 430, 431, 432, 433, 439, 498, 503, 512, 514, 533, 535, 554, 572, 580, 639, 645, 653, 679, 692, 699, 777, 783, 807, 814, 824, 825, 835, 857, 872, 876, 953, 954 |
| 951 | 431 |
Source: NANPA utilized central office code file.
When Colton's exchanges were assigned
Assignment dates show when each block of Colton numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 7 | 44% |
| 2010s | 3 | 19% |
| 2020s | 6 | 38% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to Colton
What a caller sees as "local" is the area code plus prefix. In Colton, those come from the COLTON rate center, as recorded by NANPA.
New local numbers are drawn from carrier inventory, so the exact 909 numbers available change over time; porting an existing number is free.
Businesses around Colton
Colton is part of the Riverside-San Bernardino-Ontario, CA metro area, home to 4.7 million people in 2024. County Business Patterns counted 88,815 business establishments in the Riverside, CA metro area in 2023, employing 1,406,138 people. The largest sectors by establishment count are health care and social assistance (11,275), retail trade (10,992), and construction (9,892).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 3,907 | 77,317 | 19.8 |
| Physician practices | 2,650 | 22,783 | 8.6 |
| Full-service restaurants | 2,583 | 56,869 | 22.0 |
| Offices of real estate agents and brokers | 1,934 | 3,888 | 2.0 |
| Dental offices | 1,904 | 12,827 | 6.7 |
| General freight trucking companies (local) | 1,711 | 6,633 | 3.9 |
| Plumbing, heating and air-conditioning contractors | 1,442 | 13,434 | 9.3 |
| Residential remodelers | 1,368 | 5,743 | 4.2 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Colton
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 Colton, 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 16 users, the rounded average establishment size in the Riverside, CA metro area. At list prices checked September 28, 2026, that is $399.20 a month on Ooma Office Pro and $480.00 on RingCentral RingEX Core. On Callata the same 16 people cost $319.00 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 | $319.00 | $3,828.00 |
| Quo (Starter) | $19.00 per user | $304.00 | $3,648.00 |
| Nextiva (Core) | $23.00 per user | $368.00 | $4,416.00 |
| Ooma (Office Pro) | $24.95 per user | $399.20 | $4,790.40 |
| Dialpad (Standard) | $27.00 per user | $432.00 | $5,184.00 |
| RingCentral (RingEX Core) | $30.00 per user | $480.00 | $5,760.00 |
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 Colton, CA?
Colton has exchanges in 909, 840, and 951; 909 has the most.
How many phone companies have exchanges in Colton?
17, holding 52 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Colton 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 Colton?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 16 users come to $319.00 a month. For comparison, 16 users on RingCentral RingEX Core list at $480.00 a month (checked September 28, 2026).