Hi,

The IANA AS Numbers registry has been updated to reflect the allocation of the following blocks to ARIN:

402333-403356 Assigned by ARIN 2026-03-14
403357-404380 Assigned by ARIN 2026-03-14

You can find the registry at:

https://www.iana.org/assignments/as-numbers/

The allocation was made in accordance with the Policy for Allocation of ASN Blocks to Regional Internet Registries:

https://www.icann.org/resources/pages/global-policy-asn-blocks-2010-09-21-en

Best regards,

David Dong
IANA Services Sr. Specialist