CallataGuidesGet a local business phone number in Petersburg, IN
Petersburg's area code, prefixes and carriers from NANPA records, and how to put a Petersburg number in front of your customers.
- Area code
- 812
- Exchanges
- 9NANPA-assigned
- Carriers
- 6
- Population
- 2,269Census 2024 est.
What area code is Petersburg, IN?
With 2,269 residents in the Census 2024 estimate, Petersburg sits in Pike County, Indiana. All 9 exchanges NANPA lists for its rate center are in area code 812. 812 is part of an overlay with 930, so a new local number in Petersburg may carry any of those codes depending on which have numbers available. Petersburg is in the Eastern and Central time zone.
According to NANPA's dialing-plan data, local calls within 812 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 |
|---|---|---|---|---|---|
| 812 | 9 | 100% | 1947 | 930 | Eastern and Central |
Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.
Petersburg exchanges by carrier
6 carriers hold the 9 exchanges assigned to Petersburg's rate center. Frontier North, INC. - In has the most, with 3. 9 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 |
|---|---|---|
| Frontier North, INC. - In | 3 | 33% |
| Level 3 Communications, LLC - In | 2 | 22% |
| Onvoy, LLC - In | 1 | 11% |
| Twilio International, INC. | 1 | 11% |
| Cellco Partnership d/b/a Verizon Wireless - In | 1 | 11% |
| New Cingular Wireless PCS, LLC - Ga | 1 | 11% |
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.
Petersburg phone prefixes
These are the central office codes NANPA records for Petersburg. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 812 | 354, 380, 407, 441, 582, 601, 766, 789, 809 |
Source: NANPA utilized central office code file.
Rate centers and local calling in Petersburg
Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Petersburg's numbers are rated to the PETERSBURG rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Petersburg number.
If your business already has a Petersburg number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
Who does business near Petersburg
Petersburg is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 155,692 business establishments in Indiana in 2023, employing 2,924,989 people. The largest sectors by establishment count are retail trade (21,015), health care and social assistance (19,159), and other services (except public administration) (17,107).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 5,396 | 116,100 | 21.5 |
| Full-service restaurants | 4,796 | 109,607 | 22.9 |
| Physician practices | 3,462 | 70,545 | 20.4 |
| Insurance agencies and brokerages | 2,965 | 17,060 | 5.8 |
| Offices of real estate agents and brokers | 2,682 | 6,201 | 2.3 |
| Landscaping services | 2,463 | 17,467 | 7.1 |
| Residential remodelers | 2,456 | 9,120 | 3.7 |
| Dental offices | 2,246 | 20,655 | 9.2 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
A Petersburg 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 Petersburg, 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.
Per-seat phone plans multiply by headcount. For the rounded average establishment size in Indiana, 19 users on RingCentral RingEX Core come to $570.00 a month and on Ooma Office Pro $474.05, at month-to-month list prices checked September 28, 2026. On Callata the same 19 people cost $379.00 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 | $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 Petersburg, IN?
812. All exchanges NANPA lists for Petersburg are in 812.
How many phone companies have exchanges in Petersburg?
6, holding 9 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Petersburg 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 Petersburg?
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).