---
title: ".CO.TH — TLD Knowledge Base"
url: "https://help.internetx.com/en/tld/co-th/"
data: "https://help.internetx.com/tld-data/co-th.json"
lang: "en"
tld: ".CO.TH"
registry: "Thai Network Information Center Foundation"
country: "Thailand"
updated: "2026-09-10"
---

# .CO.TH
## Specifications

| | |
|---|---|
| Zone | .co.th |
| reg time | Manual |
| Period | 2 years |
| char length | 1-63 |
| Nameservers | 2-7 nameservers |
| transfer time | Manual |
| whois server | whois.thnic.co.th |
| data set | ccTLD |
| Connection | Manual |

## Eligibility & Restrictions

Please contact the support for details. Confirmation required. Copy of commercial licence (companies) or copy of Identity Card (individuals). Local domain administrator (AdminC) required. Domain name has to be very close to company name. Local domain owner (OwnerC) required (office/residence). Nameserver must be set up in advance and provide an authoritative response.

> Required contact fields: Tech contact email, Owner contact email, Admin contact email.

## Registration

Registration period: 2 years. Processing is manual. Character length: 1-63. Requires 2-7 nameservers.

## Transfer Procedure

Transfer processing is manual.

## Registrant Change

No registry-level owner change task. Updates handled via contact data updates.

## Renewal & Deletion

No explicit renewal task. Domain auto-renews or follows registry-defined lifecycle. Cancellation period: 1 month.

## Restore / Redemption Grace Period

Restore is not available as a registry task. Domain cannot be recovered after deletion.

## WHOIS / Privacy

WHOIS server: whois.thnic.co.th. WHOIS privacy not supported. Contact data publicly visible.

## Tasks (API)

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

## Data controllers

- name: , type: org, organisation: Thai Network Information Center Foundation, address: 159 Thanon Phichai,Khwaeng Thanon Nakhon Chaisi, Khet Dusit,Bangkok 10300,Thailand
- name: Chaya Limchitti, type: admin, organisation: Thai Network Information Center Foundation, address: 159 Thanon Phichai,Khwaeng Thanon Nakhon Chaisi, Khet Dusit,Bangkok 10300,Thailand

## Required fields

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

## Restrictions

- text: Bitte wenden Sie sich an den Support, um die jeweiligen Anforderungen zu klären., language: de
- text: Domainname muss stark an Firmennamen angelehnt sein., language: de
- text: Lokaler Domaininhaber (OwnerC) erforderlich (Firmensitz/Wohnsitz)., language: de
- text: Lokaler Domainverwalter (AdminC) erforderlich., language: de
- text: Nachweis erforderlich. HR-Auszug (Firma), bzw. Personalausweiskopie (Privatperson)., language: de
- text: Nameserver müssen vorher eingerichtet sein und autoritativ antworten., language: de
- text: Confirmation required. Copy of commercial licence (companies) or copy of Identity Card (individuals)., language: en
- text: Domain name has to be very close to company name., language: en
- text: Local domain administrator (AdminC) required., language: en
- text: Local domain owner (OwnerC) required (office/residence)., language: en
- text: Nameserver must be set up in advance and provide an authoritative response., language: en
- text: Please contact the support for details., language: en

## Error codes

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

## Root nameservers

- A.THAINS.CO.TH
- NN1.THAINS.CO.TH
- P.THAINS.CO.TH
- C.THAINS.CO.TH
- NS.THNIC.NET
- B.THAINS.CO.TH