Re: GS1 Company Prefix

I am in early testing of an EDI 856 Advance Ship Notice app.

One detail concerning me is the "Company Prefix" that part of
the SSCC-18 Serial Shipping Container Code.

I did ask for a GS1 Company number, but my company has
balked at paying.

At this time I am using our 9 digit company DUNS number
as the Company Prefix.

I have been able to gen 20 digit numbers with a check digit
that passes a Check Digit Calculator available on the web.

Does anyone have current, real-world experience using a
DUNS number to form an SSCC-18 ?

Thanks!

P.S.
I am using the following "structure" for the SSCC-18:

AAeCCCCCCCsssssssssD

Where: AA Application Identifier (AI)

("00" is the AI value for SSCC-18 data structure)

e Extension digit (has no defined use and is
used as an extra digit for the Company
Prefix and Serial Number combination).

CCCCCCC Company Prefix of 7-10 digits. (9 for my app)

sssssssss Serial Reference of 6-9 digits. (7 for my app)

The total length of the Company Prefix and
Serial Reference is 16.
(17 if the Extension Digit is used ??)

D Modulo 10 Check Digit.