Using address space – FAQs

  1. What is the difference between "allocated" and "assigned"?
  2. Can I reserve address space for my customers?
  3. What is an "assignment window" and why do I have one?
  4. Why do I have to resubmit information about my address usage each time I request additional IP addresses?
  5. Why does APNIC state it cannot guarantee that addresses it allocates will be routable?

What is the difference between "allocated" and "assigned"?

When a Member has received an allocation it can further delegate that IP address space to their customers along with their own internal infrastructure.

When a Member has received an assignment this can only be used for their own internal infrastructure.

Can I reserve address space for my customers?

Yes, but reservations is considered as unused address space.

The practice of reserving space can lead to wastage of valuable resources. For example, when customers fail to request the space reserved for them.

You will be ineligible to receive additional address space unless at least 80% of your previous allocations are used.

What is an "assignment window" and why do I have one?

An assignment window refers to the amount of IP address space that you can assign to your customers without the need to submit a second opinion request form for APNIC's approval. The assignment window ensures that all Members are familiar with APNIC's policies and follow the correct procedures and practices when assigning IP addresses.

For more information, see the Assignment window FAQs.

Why do I have to resubmit information about my address usage each time I request additional IP addresses?

APNIC has a duty to the global Internet community to ensure that Internet address resources in this region are being managed responsibly and used according to best current practice.

Therefore, APNIC needs to evaluate the addressing practices of its Members to ensure these best practice requirements are met.

Why does APNIC state it cannot guarantee that addresses it allocates will be routable?

The filtering policies implemented by transit providers around the world are beyond APNIC’s control.