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HSCN IP address management

The Health and Social Care Network (HSCN) programme will provide new and significantly different network services to the N3 network it succeeds.

HSCN will create the effect of a single network across health and social care providers and their partners. It will support more integrated care and is available to all health and social care organisations in England. 

HSCN Internet Protocol address management process

As part of your migration to HSCN, you may want or need to migrate your existing IP addresses or require new IP addresses. This will be managed by the Internet Protocol Address Management (IPAM) team.

NHS Digital will manage and administer the HSCN IP addressing policy and the IPAM function. The IPAM team will manage the allocation and return of subnets from the HSCN IP address space and ensure that all migrated ranges are correctly identified.

Please note that the IPAM team only accept IPAM requests via the IPAM online forms in the HSCN portal. Please contact for further information.

All HSCN customers need to:

  1. Request access to the HSCN portal by emailing
  2. Ensure that you request ‘IPAM delegate’ permissions under your parent ODS code (e.g. trust or CCG level) and not site ODS codes (e.g. a trust site or GP practice.)
  3. Complete an IPAM form via the HSCN portal.
  4. The IPAM team will acknowledge your submission within five working days.
  5. Your requested IP addresses and migration date will be reviewed by the IPAM team, with every effort will be made to meet your requirements.
  6. The IPAM team will send an email confirmation within five working days from the date of acknowledgement or contact you if further details are required.

Requirement for additional IP addresses

If you require an additional allocation of IP addresses, then please complete the HSCN Private IP Address Allocation Request form and return by email to

This form is only for organisations with sites already connected to HSCN that have a requirement for an additional allocation of IP addresses from the NHS private IP address space; - 

This form should not be used to request NHS private IP address allocations for sites connected to the Transition Network (legacy N3).

Further information and enquiries

For enquiries please email the HSCN IPAM team:

Further guidance will also be made available via supplier and consumer webinars. You can find details of upcoming webinars on the HSCN news and events page or email to request content from previous webinars.

Policy and guidance documents

HSCN IP addressing policy 

Further information is available from the HSCN IP addressing policy. The policy applies to all direct connections to the HSCN from organisations of all types, including NHS, social care, and third-party organisations, such as application providers.

HSCN IP addressing policy

HSCN IP addressing good practice guidelines 

The HSCN IP addressing good practice guidelines document provides advice and guidance for IP addressing and related key protocols for organisations connected to HSCN. 

HSCN IP Addressing Good Practice Guide

HSCN IP addressing guidance for transition

This transition guidance document is designed to provide advice relating to IP addressing for organisations migrating from the Transition Network (TN) to the HSCN.

HSCN IP addressing guidance for transition

Transition Network IP addressing policy 

The Transition Network IP addressing policy details the current NHS Digital IP addressing for Transition Network (legacy N3) users. 

Transition Network IP addressing policy


HSCN Internet Protocol (IP) addressing policy

This HSCN Internet Protocol (IP) addressing policy defines the legitimate addressing schemes and the working principles for their use. This policy statements set out in this document are necessary to underpin the transition to the HSCN in support of the business needs of health and social care.


Transition Network IP addressing policy

The NHS Transition Network addressing policy mandates the use of the private IP address range from to within the core of the Transition Network (TN) and for legacy continuing orders.