.AC.CN

Name: .AC.CN — TLD Knowledge Base
Creator: CNNIC

China

CNNIC · SubTLD · Updated 2026-09-10

Restricted

Specifications

Zone: ac.cn
Registration: Real-time
Registration period: 1-10 years
Character length: 1-63
Nameservers: 2-7 nameservers
Transfer time: Manual (days)
Auth code format: Standard EPP
Redemption period: 15 d
WHOIS update: Standard
WHOIS server: whois.cnnic.cn
Connection: Via Chinese registrar
Data set: ccTLD
Auth code: Yes

Eligibility & Restrictions

Since January 6, 2010: new .CN registrations by overseas registrars SUSPENDED INDEFINITELY. Existing .CN domains can be renewed. Foreign entities must register through a Chinese entity or local presence.

New overseas registrations suspended indefinitely since 2010. Any new .CN must be registered through a CNNIC-accredited registrar in China.

Registration

1-10 years.

Transfer Procedure

Manual transfer process with auth code. Processing may take several days.

📘 ICANN Transfer Policy (IRTP) — See ICANN Transfer Policy for the full IRTP framework, auth code rules, 60-day lock periods, and TEAC.

Registrant Change

Must be handled through CNNIC-accredited Chinese registrar.

📘 ICANN OwnerChange (COR) — See ICANN OwnerChange for COR triggers, FOA/DA modes, 60-day lock, and opt-out.

Renewal & Deletion

Existing domains can be renewed.

📘 ICANN ERRP — See ICANN ERRP for the standard gTLD expiry lifecycle (Auto-Renew Grace → RGP → Pending Delete → Released).

Restore / Redemption Grace Period

15-day RGP. No Pending Delete period after RGP. Available immediately after 15 days.

📘 ICANN ERRP — See ICANN ERRP for RGP details and standard restore fees.

WHOIS / Privacy

Full registrant data publicly visible. No WHOIS privacy available.

📘 ICANN Registration Data Policy — See Registration Data Policy for RDP 2025, RDAP, redaction defaults, and privacy/proxy rules.

NIS2 Compliance

N/A. China not subject to EU NIS2.

📘 NIS2 Compliance — See NIS2 Compliance for Article 28 requirements, registry implementation status, and operational impact.

Known Error Codes & Notes

Overseas suspended: New overseas registrations suspended indefinitely since 2010.
Content restrictions: Domain name content restrictions apply (politically sensitive terms prohibited).

Data controllers

China Internet Network Information Center (CNNIC) (org) No. 4, South 4th Street, Zhong Guan Cun, Beijing 100190, China
China Internet Network Information Center (CNNIC) — Yu Zeng (admin) No. 4, South 4th Street, Zhong Guan Cun, Beijing 100190, China

Error codes

EF00803
EF01017
EF03008
EF00512
EF01008
EF01009
EF03005
EF01002
EF03007
EF01015
EF03006
EF01075
EF03011
EF01055
EF03041
EF03040
EF03010
EF01095
EF01074
EF0103118

Required fields

ownerc/email

Restrictions

Special validation process for domain owner. Please see website.
Only ASCII domains possible.
Confirmation required. Copy of commercial licence (companies) or copy of Identity Card (individuals).

Root nameservers

C.DNS.CN
D.DNS.CN
E.DNS.CN
NS.CERNET.NET
A.DNS.CN
B.DNS.CN

Tasks (API)

update · available · automatic
create · available · chargeable · automatic
updateStatus · available · automatic
preack · available · automatic
transfer · available · chargeable · automatic · AuthInfo required
delete · available · automatic
renew · available · chargeable · automatic
restore · available · chargeable · automatic

API

Domain Create

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

{
  "name": "example.ac.cn",
  "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.ac.cn",
  "auth": "(AUTH_CODE)"
}

Create AuthInfo1

POST https://api.autodns.com/v1/domain/example.ac.cn/_authinfo1

Standard EPP auth code.

Domain Restore

POST https://api.autodns.com/v1/domain/example.ac.cn/_restore