Registration Services

Requesting IPv6 blocks to providers (ISP)



To request an IPv6 address block the organization should fill up the template indicated above and then sent it to . Once it is verified and no error was found, an e-mail is sent back with the "ticket" number that identifies this request in our system.

After being approved, it will be necessary to pay the registration fee and sign the Registration Service Agreement. The instruction for payment and about the agreement is sent with the approval message. The allocation is only done after the payment and the reception of the agreement already signed.

Allocation of additional address space will be only granted if there is no pending payment or agreement.

The minimal block allocated by LACNIC is /32 and in order to qualify for an initial allocation the organization should:

  • Be a LIR (Local Internet Registry), which means being an organization that assigns address spaces for its network services customers. These are usually ISP access providers whose customers are end users or other access providers.
  • Not be an end site (end user);
  • Document a detailed plan for the services and IPv6 connectivity to be offered to other organizations (clients)
  • Announce the allocated block in the Internet inter-domain routing system, with the minimum possible level of disaggregation to the one that is publishing the IP blocks, within a period no longer than 12 months.
  • Offer IPv6 services to clients physically located within the region covered by LACNIC within a period not longer than 24 months

Requesting additional block

Additional allocations will be conceded when the organization (ISP/LIR) reaches a high use rate of the last allocated block. The use rate will be calculated in terms of /48 prefix blocks assigned for end users.

The methodology HD-Ratio RFC3194 will be used to calculate the use rate. According to this methodology, a 0.94 rate is considered acceptable in terms of the address use, thus justifying an additional allocation.

LACNIC will use the information in the WHOIS about assignations to calculate the HD-Ratio.

The organization that proves an efficient use of the previously assigned space, according to the mentioned criteria, will be able to receive another addressing space equal in size to the previously received.

The additional space to be allocated to an organization will always be adjacent to the last allocated space if possible.

The organization requesting address block should be aware of the renovation fee associated with the allocated block.