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prop-152-v001: Reduce the IPv4 delegation from /23 to /24

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Proposer: Rajesh Chharia (rc@cjnet4u.com) and Vivek Narayan (ddgds-dot@nic.in)


1. Problem statement
--------------------
APNIC's available IPv4 addresses in the final 103/8 are down to 0.3%, and APNIC will soon begin 
delegating from the recovered and/or reserved address space.

Delegated: 887,431,680 (99.5%)
Available: 2,792,192 (0.3%)
Reserved:  1,293,568 (0.1%)

Note: ‘Reserved’, as defined by APNIC, means the resource has not been allocated or assigned to 
any entity and is not available for allocation or assignment. This may include reserved space as 
defined in the policy document or by the IETF, voluntarily returned space that is undergoing 
quality checks, or reclaimed space awaiting administrative clearance.


2. Objective of policy change
-----------------------------
The current final /8 allocation policy[1] requires that the current minimum delegation size for 
IPv4 is a /24 and each APNIC account holder is only eligible to receive IPv4 address delegations 
totalling a maximum /23 from the APNIC 103/8 IPv4 address pool.

As stated above, the available APNIC 103/8 IPv4 address pool for APNIC account holders is shrinking. 

At the rate of current delegation size, it is expected that this pool will be depleted in 2024.

To further accelerate Internet growth in the Asia Pacific region, it is recommended that some 
IPv4 address space be made available in the APNIC service region for new businesses, startups,  
and so on, so that they can prepare for IPv6 migration rather than purchasing market transfers,  
which may be prohibitively expensive for new entrants.

Account holders who have already received IPv4 addresses will be motivated to implement IPv6.


3. Situation in other regions
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There is no similar policy in place in other RIR regions.


4. Proposed policy solution
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1. No change to the current policy[1] to current minimum delegation size for IPv4 is a /24 and 
each APNIC account holder is only eligible to receive IPv4 address delegations totalling a 
maximum /23 from the APNIC 103/8 IPv4 address pool. APNIC can continue with this policy until 
all of the available 2,792,192 (0.3%) resources are depleted.

2. Once the available 2,792,192 (0.3%) resources are depleted, APNIC and NIR account holders 
who already received IPv4 address space cannot receive any further IPv4 addresses.

3. APNIC and NIRs will delegate a maximum of /24 IPv4 addresses to their new account holders, 
with no IPv4 addresses, from  the current 'Reserved' pool and any subsequent reserved pool in 
the future which will be made available for delegation.

4. If APNIC runs out of all of IPv4 addresses, a waiting list for new requestors with no IPv4 
addresses must be created on a first come, first served basis.


5. Advantages / Disadvantages
-----------------------------
Advantages:
This proposal allows new businesses, startups, and so on to access the IPv4 resources in the APNIC region.
This proposal also can help in the uptake of IPv6 deployments in the APNIC region.

Disadvantages:
No disadvantages are foreseen.


6. Impact on resource holders
-----------------------------
This will affect NIR members in the same way as APNIC members.


7. References
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[1] Section 6.1. "Minimum and maximum IPv4 delegations" of "Policies for IPv4 address 
space management in the Asia Pacific region" 

https://www.apnic.net/community/policy/resources#a_h_part_2