---
title: ".CU — TLD Knowledge Base"
url: "https://help.internetx.com/en/tld/cu/"
data: "https://help.internetx.com/tld-data/cu.json"
lang: "en"
tld: ".CU"
registry: "CENIAI / NIC.CU"
country: "Cuba"
updated: "2026-09-10"
---

# .CU
## Specifications

| | |
|---|---|
| Zone | .cu |
| reg time | Real-time |
| Period | 1 year |
| char length | 1-63 |
| Nameservers | 2-6 nameservers |
| transfer time | Slow/manual |
| authcode length | N/A |
| Redemption | Standard |
| whois update | Standard |
| whois server | whois.nic.cu |
| Connection | Direct |
| data set | ccTLD |

## Eligibility & Restrictions

Extremely restricted. Cuba subject to US OFAC sanctions. US persons broadly prohibited. Local Cuban presence effectively required. Very few international registrars offer .CU.

> COMPLIANCE FLAG: Cuba subject to US OFAC sanctions. Always check sanctions compliance before accepting .CU orders.

## Registration

1 year. Processing: days to weeks.

## Transfer Procedure

Manual transfer process. No auth code used by this registry.

> 📘 [ICANN Transfer Policy (IRTP)](/en/icann/icann-transfer/) — See ICANN Transfer Policy for the full IRTP framework, auth code rules, 60-day lock periods, and TEAC.

## Registrant Change

Standard process.

> 📘 [ICANN OwnerChange (COR)](/en/icann/icann-ownerchange/) — See ICANN OwnerChange for COR triggers, FOA/DA modes, 60-day lock, and opt-out.

## Renewal & Deletion

Standard.

> 📘 [ICANN ERRP](/en/icann/icann-errp/) — See ICANN ERRP for the standard gTLD expiry lifecycle (Auto-Renew Grace → RGP → Pending Delete → Released).

## Restore / Redemption Grace Period

Standard.

> 📘 [ICANN ERRP](/en/icann/icann-errp/) — See ICANN ERRP for RGP details and standard restore fees.

## WHOIS / Privacy

Standard WHOIS.

> 📘 [ICANN Registration Data Policy](/en/icann/icann-rdp/) — See Registration Data Policy for RDP 2025, RDAP, redaction defaults, and privacy/proxy rules.

## NIS2 Compliance

N/A.

> 📘 [NIS2 Compliance](/en/icann/ts-nis2/) — See NIS2 Compliance for Article 28 requirements, registry implementation status, and operational impact.

## Known Error Codes & Notes

- code: OFAC sanctions, desc: US persons, US-incorporated entities cannot register without specific OFAC license. InterNetX (German) can process but US-connected clients blocked.
- code: Very limited availability, desc: Primarily used by Cuban state enterprises. Very low registration volume.

## Further information

- label: CENIAI / NIC.CU, url: https://nic.cu

## Tasks (API)

- label: update, available: true, chargeable: true, authinfo: null, requiredAuthinfo: null, min: null, max: null, processing: AUTOMATED
- label: create, available: true, chargeable: true, authinfo: null, requiredAuthinfo: false, min: [object Object], max: [object Object], processing: SEMIAUTOMATED
- label: preack, available: true, chargeable: false, authinfo: null, requiredAuthinfo: null, min: null, max: null, processing: AUTOMATED
- label: delete, available: true, chargeable: false, authinfo: null, requiredAuthinfo: null, min: null, max: null, processing: SEMIAUTOMATED
- label: transfer, available: true, chargeable: true, authinfo: null, requiredAuthinfo: false, min: [object Object], max: [object Object], processing: SEMIAUTOMATED

## Required fields

- techc/email
- ownerc/email
- adminc/email

## Restrictions

- text: Domains can be registered without restrictions., language: en
- text: Domains können ohne weitere Einschränkungen registriert werden., language: de
- text: Please contact the support for details., language: en
- text: Bitte wenden Sie sich an den Support, um die jeweiligen Anforderungen zu klären., language: de

## Error codes

- EF01017
- EF03008
- EF00512
- EF01008
- EF01009
- EF03005
- EF01002
- EF03007
- EF03006
- EF01075
- EF03011
- EF01055
- EF03010
- EF01074
- EF0103118

## Root nameservers

- NS2.CENIAI.NET.CU
- NS2.GIP.NET
- NS.DNS.BR
- CU.CCTLD.AUTHDNS.RIPE.NET
- RIP.PSG.COM
- NS.CENIAI.NET.CU

## API

## Domain Create

POST https://api.autodns.com/v1/domain

{
  "name": "example.cu",
  "ownerc": {
    "id": 23142212
  },
  "adminc": {
    "id": 23142212
  },
  "techc": {
    "id": 23142212
  },
  "nameServers": \[
    {
      "name": "ns1.example.com"
    },
    {
      "name": "ns2.example.com"
    }
  \],
  "confirmOrder": false
}

## Domain Transfer

POST https://api.autodns.com/v1/domain/\_transfer

{
  "name": "example.cu",
  "auth": "(AUTH\_CODE)"
}

## Create AuthInfo1

POST https://api.autodns.com/v1/domain/example.cu/\_authinfo1

Standard EPP auth code.

## Domain Restore

POST https://api.autodns.com/v1/domain/example.cu/\_restore