Solano County Jail Phone Number and Inmate Calls

The Solano County jail phone number depends on which of the three Fairfield facilities you need: Stanton Correctional Facility answers at 707-784-4830, Claybank Detention Facility at 707-784-7190, and the Justice Center Detention Facility at 707-784-7100.¹²³ These are administrative lines. Staff can confirm bail amounts, court dates, and directions, but they will not transfer your call to anyone in custody or pass along personal messages. To actually speak with an incarcerated person, you have to set up a funded phone account through the jail’s authorized communication vendor and wait for that person to call you.

Which Number to Call

All three facilities sit in Fairfield. Stanton Correctional Facility is at 2450 Claybank Road, Fairfield, CA 94533, phone 707-784-4830.¹ Claybank Detention Facility is next door at 2500 Claybank Road, Fairfield, CA 94533, phone 707-784-7190.² The Justice Center Detention Facility is at 500 Union Avenue, Fairfield, CA 94533, phone 707-784-7100.³

If you plan to visit any of the three in person, leave cell phones, electronics, and recording devices in your car. They are prohibited inside.³

Finding Out Where Someone Is Held

Before you call, use the Sheriff’s Office online inmate search. Enter at least the first three letters of the person’s first or last name.⁴ The results show the booking number, which you’ll need to set up a phone account. If the person doesn’t appear, call any of the three facility numbers above and ask the front desk for booking information.

Talking to Someone in Custody

People in Solano County custody cannot receive incoming calls. Every call is outgoing, placed by the incarcerated person from a phone inside their housing unit using a personal identification number. To be on the receiving end, you need a funded account with the jail’s phone vendor.

When the call rings through, an automated voice prompt asks you to accept or decline. Follow the instructions to open the line; if you don’t respond, the call disconnects. Each call is capped at 15 minutes. When the timer runs out, the system ends the conversation regardless of your remaining balance.

Setting Up the Account

Have the incarcerated person’s full legal name and booking number ready. During registration you select the Solano County Sheriff’s Office as the facility so the account links to the right system, and you’ll need a credit or debit card, a valid email address for receipts, and the phone number where you want to receive calls.

Solano County has used IC Solutions as its phone vendor. Vendors change from time to time, so if you can’t register, call the facility directly or check the Sheriff’s Office website for the current provider. IC Solutions customer service runs 24 hours a day at 888-506-8407.⁵

Prepaid vs. Debit

You usually pick between a Prepaid Account, tied to your phone number, and a Debit Account, tied to the incarcerated person. The choice matters for refunds. Money in a Prepaid Account can be returned to you when you close the account and request it. Money in a Debit Account belongs to the incarcerated person and is not refundable to you.⁵

What the Calls Cost

Federal law now caps what jail phone vendors can charge. The Martha Wright-Reed Just and Reasonable Communications Act of 2022 gave the FCC authority to regulate interstate and intrastate rates for audio and video calls from correctional facilities.⁶ As of April 6, 2026, the per-minute caps for audio calls from jails (including a $0.02 facility surcharge) are:

Large jails, 1,000 or more average daily population: $0.10
Medium jails, 350 to 999: $0.12
Small jails, 100 to 349: $0.13
Very small jails, 50 to 99: $0.15
Extremely small jails, under 50: $0.19

⁷

The FCC’s 2024 IPCS Order also banned separate ancillary charges. Automated payment fees and third-party financial transaction fees are prohibited, so the vendor cannot add extra charges when you fund your account online or by phone.⁷ If you see fees that look like they violate these rules, you can file a complaint with the FCC. A full 15-minute call runs from $1.50 at the lowest tier to $2.85 at the highest.

Recording and the Attorney Exception

Every call from a Solano County detention facility is recorded and monitored by the Sheriff’s Office. A disclaimer plays at the start of each call. Three-way calling and call forwarding are blocked, and the system terminates the call if it detects either.

California Penal Code Section 636 makes it a felony to eavesdrop on or electronically record conversations between someone in custody and their attorney, religious adviser, or licensed physician without all parties’ consent.⁸ For that protection to work in practice, the incarcerated person typically has to register the attorney’s number with the facility in advance so the system flags it as privileged. Attorneys should confirm their number has been flagged before conducting any confidential call.

When Calls Won’t Go Through

The most common problem is your cell carrier flagging jail calls as spam or robocalls. If calls are being blocked before they reach you, add the facility’s outgoing number to your contacts. If that doesn’t fix it, also add 888-506-8407 to your contacts, then call your carrier and ask them to unblock those numbers.⁹

Other regular culprits: an empty account balance, so the call never connects; missing the key prompt to accept, so the call drops; and the 15-minute timer ending a call mid-sentence. If calls consistently fail with a funded account, call the phone vendor’s customer service line to check whether your number has been blocked at the system level.

Refunds if the Person Is Released or Transferred

Your options depend on which account you funded. Prepaid Account balances can be refunded to you when you close the account and request the refund. Debit Account balances belong to the incarcerated person; if they’re released or transferred, any remaining funds may be refunded to them at the facility’s discretion.⁵ If keeping the ability to recover unused funds matters to you, use a Prepaid Account tied to your own phone number.

Video Visits and Mail

Solano County facilities also offer remote video visitation, which lets you see the person during the visit. Registration is required; scheduling details are on the Sheriff’s Office website or the facility visiting pages.¹⁰ Physical mail is also allowed, subject to rules about what can be enclosed and how it must be formatted. Inmates cannot send or receive mail from other people held in Solano County facilities without prior written approval. For current mail guidelines, check the jail mail information page on the Solano County website or call the facility where the person is housed.

1
Solano County, California. Stanton Correctional Facility
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Solano County, California. Claybank Detention Facility
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Solano County, California. Justice Center Detention Facility
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Solano County, California. List of Inmates
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ICSolutions. FAQ
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Federal Register. Implementation of the Martha Wright-Reed Act – Rates for Interstate Inmate Calling Services
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Federal Communications Commission. Incarcerated People’s Communications Services
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California Legislative Information. California Code, Penal Code – PEN 636
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ICSolutions. Blocked Calls
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Solano County, California. Jail Visiting Information