I read on 800 notes at that number
that someone traced this number back to 402-391-5285.
Someone also said it was National Recovery Association
or something like that. A Collection Agency.
If this is true, they are proably trying to Trick people
into giving them "donation money" by claiming they
are National Rifle Association when they are not.
If this is true, Its a Fraud and Illegal.
Don't be fooled or tricked by these people.
They may be hoping people will assume it is
without asking.