HMP Isis is located in within the perimeter walls of HMP Belmarsh, in Thamesmead, south-east London. It’s a category C prison holding sentenced young adults and young offenders, all of whom are under the age of 25; and it has a capacity of 622. The prison opened in 2010 and was built by a private company, Interserve, who were paid £110 million for the job. If you’d like to visit HMP Isis, you can find directions using the map on this page.
Tel: 020 3356 4000
Operational capacity: 622
Western Way, London SE28 0EB
Prison Phone have been saving inmates at HMP Isis money on their calls from the prison to any UK mobile phone since 2013.
We do this by allocating a dedicated and secure local number to your mobile phone, this means when the inmate at Isis prison calls the new local number we have provided they will be charged at just the local landline rate (around 10p per minute) rather than the standard mobile rate (which is around 40p per minute).
This in turn helps to stretch the inmates PINS phone credit further and reduces the amount you need to send in for them to top up!