US/Canadian GSM network codes

[Paul remove-the-nospam Day]

So, it seems for some reason the US and Canadian GSM1900/PCS networks
all have a non-standard CCC-NNN network code and then a second code in
the normal CCC-NN format (and often lots of them instead of a single one
per network).

My phone (SE K700i) only allows one or the other (eg, not both 310-280
and 310-28 at the same time) in my Preferred Networks list for setting
up roaming network priorities. Which should I go with or does it make no
difference which I choose?

PD

--
Paul Day Web: www.bur.st/~paul GPG Key ID: 7FF655A8

[Jeremy Quirke]

3-digit MNC (Mobile Network Code) in the CCC-NNN are perfectly valid under
the GSM specifications.

I'm not sure what you mean by 'second code' - I've roamed plenty of GSM1900
networks and never experienced this.

"Paul remove-the-nospam Day" <paul (AT) nospam (DOT) bur.st> wrote in message
news:1099746177.416151 (AT) sweep (DOT) ..
> So, it seems for some reason the US and Canadian GSM1900/PCS networks
> all have a non-standard CCC-NNN network code and then a second code in
> the normal CCC-NN format (and often lots of them instead of a single one
> per network).
>
> My phone (SE K700i) only allows one or the other (eg, not both 310-280
> and 310-28 at the same time) in my Preferred Networks list for setting
> up roaming network priorities. Which should I go with or does it make no
> difference which I choose?
>
> PD
>
> --
> Paul Day Web: www.bur.st/~paul GPG Key ID: 7FF655A8

[Joseph]

On 6 Nov 2004 21:02:57 +0800, Paul remove-the-nospam Day
<paul (AT) nospam (DOT) bur.st> wrote:

>So, it seems for some reason the US and Canadian GSM1900/PCS networks
>all have a non-standard CCC-NNN network code and then a second code in
>the normal CCC-NN format (and often lots of them instead of a single one
>per network).
>
>My phone (SE K700i) only allows one or the other (eg, not both 310-280
>and 310-28 at the same time) in my Preferred Networks list for setting
>up roaming network priorities. Which should I go with or does it make no
>difference which I choose?

They are the same thing. Some handset manufacturers use the three
digit MNC and others use just the two digit MNC. Nokia uses two digit
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