[VoiceOps] Rate Center to LATA map
Alex Balashov
abalashov at evaristesys.com
Tue Sep 28 16:54:51 EDT 2010
On 09/28/2010 04:11 PM, Eric Hiller wrote:
> I still am unsure of what the third file is, the critical one that
> converts from rate center to lata?
You guys do have a point. I shouldn't have been so sanctimonious.
The old NANPA sheet I have had a LATA column in it; at some point,
they must have stopped providing it.
You can't resolve a rate center to a LATA per se, but you can resolve
an NPA to a LATA pretty easily. However, that won't help you avoid
edge cases like LATAs that flow across state borders into NPAs that
are otherwise 99% in some other LATA -- those do happen. For that,
you'd need the LERG and/or pooling data.
--
Alex Balashov - Principal
Evariste Systems LLC
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