Prisoner Number UK: What It Is and Why It Matters
When someone is sent to prison in the UK, they are assigned a unique prisoner number. This number plays a vital role in the prison system, serving as an identifier for managing their records, communications, and visits. Whether you're a friend, family member, or legal representative, knowing the prisoner number is essential for contacting and supporting someone in custody.
What Is a Prisoner Number?
A prisoner number is a unique identifier assigned to an individual when they are taken into custody. It's used throughout their sentence to manage paperwork, monitor movements, and track communications. The number is specific to each inmate and often consists of a combination of letters and numbers.
Why Do You Need a Prisoner Number?
Without the correct prisoner number, you may not be able to:
- Send letters or parcels
- Transfer money to their account
- Book a visit
- Submit complaints or requests
All official documentation must include the correct prisoner number to ensure it reaches the intended recipient inside the prison system.
Where Can You Find a Prisoner’s Number?
If you’re unsure of an inmate’s prisoner number, there are a few ways to find it:
- Contact the Prison: You can phone the prison directly and request the number if you have their full name and date of birth.
- Use the Prisoner Location Service: The Prisoner Location Service is run by the Ministry of Justice and allows family, friends, or legal representatives to request this information.
- Ask the Inmate: If you’re in contact by letter or phone, they can provide their number directly.
Sending Money or Letters to a Prisoner
When sending money or post to someone in prison, you must include their full name and prisoner number on the envelope or payment. For example:
John Smith Prisoner Number: A1234BC HMP Example 123 Prison Road Town Postcode
Failure to include the correct number may result in returned or delayed items.
What If You Can’t Find Their Number?
If the Prisoner Location Service can’t locate the person you're looking for, it might be because:
- They are on remand and not yet recorded in the system
- They’ve recently been transferred
- They’ve used an alias
- You're not listed as an approved contact
In these cases, you may need to wait or gain authorisation before proceeding further.
How Long Is a Prisoner Number Valid?
A prisoner number is only valid during the period of a specific sentence. If someone is released and later reoffends, they will usually be assigned a new number. However, prison systems can still reference older numbers for historic records.
Key Takeaways
- Prisoner numbers are essential for managing communications and interactions with inmates.
- You’ll need the correct number to send letters, money or arrange visits.
- Use the GOV.UK Prisoner Location Service if you're unsure of someone’s prisoner number.
For more support and guidance on navigating the UK prison system, explore our other guides or contact the Prisoners’ Families Helpline.
FAQs About UK Prisoner Numbers
What does a UK prisoner number look like?
It usually consists of one or two letters followed by four digits, such as A1234BC. Format may vary slightly between establishments.
Can I send money without a prisoner number?
No. The prison needs the correct prisoner number to deposit money into the inmate’s account.
Can I visit a prisoner without knowing their number?
Usually not. You will be asked for the prisoner number during the online or telephone booking process.
How long does it take to get a prisoner number?
Once someone is processed into custody, a number is assigned immediately. It’s usually available to family and legal contacts within 24–48 hours.
Are prisoner numbers confidential?
No. If you have a legitimate relationship or reason, you can request the number through official channels like the Prisoner Location Service.
