Get a local business phone number in Sterling, CO
Sterling's area code, prefixes and carriers from NANPA records, and how to put a Sterling number in front of your customers.
- Area code
- 970
- Exchanges
- 12NANPA-assigned
- Carriers
- 5
- Population
- 13,114Census 2024 est.
Area codes in Sterling
Sterling city is a Census place in Logan County, Colorado, with an estimated 13,114 residents in 2024. All 12 exchanges NANPA lists for its rate center are in area code 970. 970 is part of an overlay with 748, so a new local number in Sterling may carry any of those codes depending on which have numbers available. Sterling is in the Mountain time zone.
According to NANPA's dialing-plan data, local calls within 970 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 |
|---|---|---|---|---|---|
| 970 | 12 | 100% | 1995 | 748 | Mountain |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Who holds Sterling phone exchanges
5 carriers hold the 12 exchanges assigned to Sterling's rate center. Qwest Corporation has the most, with 4. 7 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 |
|---|---|---|
| Qwest Corporation | 4 | 33% |
| Level 3 Communications, LLC - CO | 3 | 25% |
| N.e. Colorado Cellular, INC. | 2 | 17% |
| Cellco Partnership d/b/a Verizon Wireless - CO | 2 | 17% |
| Commio, LLC | 1 | 8.3% |
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 Sterling
These are the central office codes NANPA records for Sterling. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 2 of the 12 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 970 | 425, 458, 466, 520, 521, 522, 526, 571, 580, 606, 740, 762 |
Source: NANPA utilized central office code file.
When Sterling's exchanges were assigned
Assignment dates show when each block of Sterling numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 4 | 67% |
| 2020s | 2 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Sterling
NANPA ties every exchange to a rate center. For Sterling that is STERLING, so a number from one of these exchanges reads as local to people in and around Sterling.
Keeping an existing Sterling number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 970 when you pick it.
The local business market
Sterling is part of the Sterling, CO micropolitan area, home to 20,755 people in 2024. County Business Patterns counted 559 business establishments in the Sterling, CO micropolitan area in 2023, employing 4,827 people. The largest sectors by establishment count are retail trade (89), health care and social assistance (77), and other services (except public administration) (69).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Full-service restaurants | 15 | 258 | 17.2 |
| General automotive repair shops | 13 | 47 | 3.6 |
| Limited-service restaurants | 13 | 215 | 16.5 |
| Insurance agencies and brokerages | 12 | 36 | 3.0 |
| Physician practices | 11 | 79 | 7.2 |
| Plumbing, heating and air-conditioning contractors | 9 | 26 | 2.9 |
| Dental offices | 8 | 43 | 5.4 |
| Offices of real estate agents and brokers | 8 | 14 | 1.8 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Setting up a Sterling 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 Sterling, 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.
A 9-person team is the benchmark here, the rounded average establishment size in the Sterling, CO micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $270.00 a month and Ooma Office Pro $224.55. On Callata the same 9 people cost $179.00 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 | $179.00 | $2,148.00 |
| Quo (Starter) | $19.00 per user | $171.00 | $2,052.00 |
| Nextiva (Core) | $23.00 per user | $207.00 | $2,484.00 |
| Ooma (Office Pro) | $24.95 per user | $224.55 | $2,694.60 |
| Dialpad (Standard) | $27.00 per user | $243.00 | $2,916.00 |
| RingCentral (RingEX Core) | $30.00 per user | $270.00 | $3,240.00 |
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 Sterling, CO?
970. All exchanges NANPA lists for Sterling are in 970.
How many phone companies have exchanges in Sterling?
5, holding 12 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Sterling 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 Sterling?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 9 users come to $179.00 a month. For comparison, 9 users on RingCentral RingEX Core list at $270.00 a month (checked September 28, 2026).