Numbering issues

The Danish numbering plan numbering lists and list of provider's contact information.

Administration of Danish Numbering plan

The Danish Energy Agency (DEA) is responsible for the administration of numbering issues in Denmark incl. the National Numbering Plan i.e. the numbering used across the subscriber interface to allow end-users access to telecommunications networks under country code 45.

The National Numbering Plan (only in Danish).

Providers contact information

The DEA updates various lists of information on assignment of numbering resources and contact information on providers who have been assigned numbering resources.

The address list shows contact information for providers who have been assigned numbering resources.

The numbering lists show the allocation of numbering resources to providers. The lists also provide information on available numbering resources not presently allocated to any provider.

Applying for numbers

What information does the Danish Energy Agency need to deal with applications for assignment of numbering resources?

Applying for numbering resources

Applications for assignment of numbering resources can be sent by e-mail (or by letter) to the Danish Energy Agency at or Danish Energy Agency, Amaliegade 44, 1256, Copenhagen K.

In order to process the application the Danish Energy Agency requires the following information.

Name address and VAT number

Indicate applicant (telecom provider) name and address. Please also provide commercial register number for VAT and tax collection purposes.

Contact information

Indicate responsible contact person incl. direct phone number email address and possible fax number. Information on the contact person will be published on the Address list of providers who have been assigned numbering resources.

Type of service

Describe the type of service for use with the applied for numbering resources e.g. mobile communication fixed or IP telephony etc.

Date of assignment

Indicate desired date for assignment. The date must be no later than 3 months after the date of application.

Please note the DEA charges a fee for each quarter the numbering resources have been assigned i.e. if a numbering resource is assigned on 1 December the fee is charged for the whole fourth quarter.

Forecast and effective use

To ensure the effective use of the limited numbering resources the applicant must indicate:

  • The applicant's need for numbering series expected each year in the next three years (this does not apply for applications on short numbers codes and addresses).
  • The total number of numbering resources assigned for the applicant at the time of application.
  • The total number of assigned numbering resources still available for the applicant at the time of application including the number of complete numbering blocks of 10.000 numbers.

Specific numbering resources

Indicate specific numbering resources desired e.g. specific numbering series or codes. The DEA continuously updates lists on assigned and available numbering resources (in Danish). 

Applying for short numbers and numbers used for data communication

For applications short numbers (i.e. 3-6 digit numbers) applicants must provide information regarding the applicant as stated above. Furthermore the following information must be provided:

  1. The type of services to be used with the short number.
  2. The number of users who can access the service.
  3. The size of the population who is the target group of the service.
  4. Expectations on the frequency of use of the service.

For applications on numbers used for data communication and for internal numbering addressing and identification the applicant must provide information regarding the applicant as stated above including information on physical address of implementation.

Applying for telex

The telex service in Denmark is administered by two companies: Swisscom and EasyLink. 




Swisscom Fixnet and Easylink Service are licensed to jointly operate the telex service in Denmark.

Telex service in Denmark

Contact information for the two companies responsible for telex services in Denmark. Here is a list of assigned telex numbers (xls).

Swisscom Fixnet Ltd
Telex Operation Management
Ms. Paola Gianinazzi
Tel: +41 91 807 9235
Fax: +41 91 807 9834
Tlx: 45 840 000 cct ch

EasyLink Services Corporation
Director C. Charles Dunlap
Global Business Development
USA Tel: +1 732 652 3817

24/7 Support numbers
Voice: +1 516 671 8000 ext. 138
Voice (emergency only): +1 516 671 8821
Telex: 230 479001 (479001 EZL UI)
Fax: +1 516 671 8817

From one to two providers of telex services

On 31 March 2005 TDC advised the then National IT and Telecom Agency that the company had decided to close down the telex service in Denmark with effect from 30 June 2005. Until then TDC had been the only telex operator in the Danish market. Therefore the decision implied that telex communication would not be directly available in Denmark from 1 July 2005.

Subsequently the National IT and Telecom Agency received enquiries from two companies - Swisscom Fixnet and Easylink Service - both of which wanted to continue the telex service in Denmark.

In view of this the Agency licensed both Swisscom Fixnet and Easylink Service to continue the telex service in Denmark.

From 1 July 2005 the telex service was continued on the basis of joint operation by the two companies.

The service is continued for the existing customers on the respective telex numbers requested by Swisscom Fixnet and Easylink Services for operating the service.


Lars Kodahl Bendtsen
Advisor (+45) 3392 7546
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