CallataGuidesGet a local business phone number in Waterloo, IN
Waterloo's area code, prefixes and carriers from NANPA records, and how to put a Waterloo number in front of your customers.
- Area code
- 260
- Exchanges
- 4NANPA-assigned
- Carriers
- 4
- Population
- 2,157Census 2024 est.
Waterloo area codes
Waterloo, in DeKalb County, Indiana, had a Census-estimated population of 2,157 in July 2024. All 4 exchanges NANPA lists for its rate center are in area code 260. Waterloo is in the Eastern time zone.
According to NANPA's dialing-plan data, local calls within 260 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 |
|---|---|---|---|---|---|
| 260 | 4 | 100% | 2002 | none | Eastern |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Waterloo exchanges by carrier
4 carriers hold the 4 exchanges assigned to Waterloo's rate center. Level 3 Communications, LLC - In has the most, with 1. 4 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 |
|---|---|---|
| Level 3 Communications, LLC - In | 1 | 25% |
| Cellco Partnership d/b/a Verizon Wireless - In | 1 | 25% |
| Onvoy, LLC - In | 1 | 25% |
| Frontier North, INC.. - In | 1 | 25% |
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.
Waterloo phone prefixes
These are the central office codes NANPA records for Waterloo. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2002. 1 of the 4 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 260 | 232, 235, 276, 837 |
Source: NANPA utilized central office code file.
When Waterloo's exchanges were assigned
Assignment dates show when each block of Waterloo numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 2 | 67% |
| 2020s | 1 | 33% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
What makes a number local to Waterloo
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Waterloo's numbers are rated to the WATERLOO rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Waterloo number.
New local numbers are drawn from carrier inventory, so the exact 260 numbers available change over time; porting an existing number is free.
Businesses around Waterloo
Waterloo is part of the Auburn, IN micropolitan area, home to 44,330 people in 2024. County Business Patterns counted 1,034 business establishments in the Auburn, IN micropolitan area in 2023, employing 21,088 people. The largest sectors by establishment count are construction (134), other services (except public administration) (118), and retail trade (117).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 35 | 773 | 22.1 |
| Full-service restaurants | 30 | 552 | 18.4 |
| Insurance agencies and brokerages | 20 | 55 | 2.8 |
| General automotive repair shops | 19 | 109 | 5.7 |
| Site preparation contractors | 18 | — | — |
| Landscaping services | 17 | — | — |
| Janitorial services | 15 | 53 | 3.5 |
| Law offices | 14 | — | — |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Waterloo number on Callata
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 Waterloo, 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 20 users, the rounded average establishment size in the Auburn, IN micropolitan area. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. On Callata the same 20 people cost $399.00 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 | $399.00 | $4,788.00 |
| Quo (Starter) | $19.00 per user | $380.00 | $4,560.00 |
| Nextiva (Core) | $23.00 per user | $460.00 | $5,520.00 |
| Ooma (Office Pro) | $24.95 per user | $499.00 | $5,988.00 |
| Dialpad (Standard) | $27.00 per user | $540.00 | $6,480.00 |
| RingCentral (RingEX Core) | $30.00 per user | $600.00 | $7,200.00 |
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 Waterloo, IN?
260. All exchanges NANPA lists for Waterloo are in 260.
How many phone companies have exchanges in Waterloo?
4, holding 4 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Waterloo 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 Waterloo?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 20 users come to $399.00 a month. For comparison, 20 users on RingCentral RingEX Core list at $600.00 a month (checked September 28, 2026).