>From Leigh's link here is the answer to my own question:

"Customer account check digits are performed over the four digits of the branch number (low order for digits of transit routing fields) and the low order six digits of the account number. The high order account digit and the two suffix digits are ignored."



On 22/11/05, Paul A Norman <[EMAIL PROTECTED]> wrote:
I opened my cheque account at 17 years of age, there was a folder with sheets of available bank account numbers(continuous). Some of those numbers are still in use. (May be with some trading banks they reissued that kind of account number later?)
 
But how does a checksum algorithim cover those older numbers  today?

 
On 22/11/05, Leigh Wanstead <[EMAIL PROTECTED] > wrote:
Is that information a trade secret of NZ banking industry?

TIA

Regards
Leigh
http://www.salenz.com

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] ]On Behalf Of Richard Vowles
Sent: Tuesday, 22 November 2005 10:00 a.m.
To: NZ Borland Developers Group - Delphi List
Subject: RE: [DUG] Bank acc No's


I would have thought you would be assassinated if you knew that - it
would let you generate new valid bank account numbers (even if there was
no account behind it).


---
Richard Vowles, Solutions Architect, Borland New Zealand
email: [EMAIL PROTECTED]
phone: +64-9-9184573
cell: +64-21-467747
other: MSN [EMAIL PROTECTED] , skype: rvowles

-----Original Message-----
From: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED]]
On Behalf Of Neven MacEwan
Sent: Tuesday, 22 November 2005 9:48 a.m.
To: DUG
Subject: [DUG] Bank acc No's

Hi

Does anyone have any information on the checksum used for Bank Acc nos
in NZ

TIA

--
Neven MacEwan (B.E. E&E)
Ph. 09 620 1356 Mob. 027 4749 062

New Address Details
===================
MWK Computer Systems
1 Taumata Rd
Sandringham
Auckland

Ph 620 1356
Fx 620 1336

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