RE: ENUM MATTERS UK OVERSEAS TERRITORIES

• To: "'Thomas Alwyn \(Mr A\)'" < >
  "Zhao, Houlin" < >
• From: "Zhao, Houlin" < >
• Date: Fri, 26 Apr 2002 14:21:39 +0200
• Cc: "Hill, Richard" < >
  "'RIPE ENUM REQUESTS'" < >
  "'MALCOM JOHNSON RA'" < >
  "'ROY BLANE INMARSAT E MAIL'" < >
  "'TONY HOLMES BT E MAIL'" < >
  "Hill, Richard" < >
  "Choutko, Lilian" < >

-----Original Message-----
From: Thomas Alwyn (Mr A) [mailto:Alwyn.Thomas@localhost]
Sent: Thursday, April 25, 2002 17:55
To: 'HOULIN ZHAO ITU TSB DIRECTOR'
Cc: 'RICHARD HILL ITU COUNSELOR'; 'RIPE ENUM REQUESTS'; 'MALCOM JOHNSON RA'; 'ROY BLANE INMARSAT E MAIL'; 'TONY HOLMES BT E MAIL'
Subject: ENUM MATTERS UK OVERSEAS TERRITORIES

TO:                                             cc RIPE
Mr Houlin Zhao                               Richard Hill
ITU TSB Director                             Malcolm Johnson
Geneva                                       Roy Blane

     Tony Holmes                                   

                                                    
From:

Alwyn Thomas
Section Head
Standards & Technology Policy
CII
DTI
UK
25 April 2002

Dear Mr Zhao,

Sub: ENUM Matters UK Overseas Territories

Reference my previous communication regarding a request from the UK administration for delegation of 44 into ENUM, I would also like to advise you of some other issues in relation to requests for ENUM delegations for international country codes that have been assigned to countries forming part of the UK Overseas Territories (OTs).

As you know already the ENUM Interim procedures are expected to be endorsed by SG2 at their next May 02 meeting.  When these procedures are in place I wish to ensure that whenever RIPE asks the ITU to confirm the authenticity of a delegation request coming from a UK OT, that the ITU will not provide this confirmation to RIPE until they have first checked with the UK administration (DTI) that the request is valid.  For your information I have attached below the list of UK OTs and their codes. 

Until these interim procedures are in place there is also a potential risk that in the absence of any objection from the ITU, RIPE may go ahead and action an ENUM delegation request for a country code belonging to one of the UK OTs without a mechanism in place to verify their authenticity.

I would therefore ask both the ITU and RIPE to co-operate as appropriate so that we avoid the possibility of unauthorised delegation requests for ENUM slipping through the net until such time that we have the interim procedures endorsed and fully operational.  If RIPE does receive a request for one of the codes below I would expect them to check this out first with DTI

You will see below that some of the UK OTs have country codes assigned behind country code 1 and therefore if you do at some stage receive a request for an ENUM delegation from these particular UK OT countries it will also be necessary for you to co-ordinate with the administration authority for the North American number Plan

Yours sincerely

Alwyn Thomas

UK Overseas Territories

Ascension Island                        +247

Falkland Islands                        +500

Gibralter                               +350

St Helina                               +290

Anguilla                                +1 264

Bermuda                         +1 441

British Virgin Islands          +1 284

Cayman Islands                  +1 345

Montserrat                              +1 664

Turcs & Caicos Islands          +1 649

British Antarctic Territory     ITU country code not assigned

British Indian Territory                ditto

Pitcairn Islands                        ditto

South Georgia and
South Sandwich Islands          ditto

Tristan da Cunha                        ditto

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