To RBCP: not all areas use DATU's. I have found them in various places around the country, but never in the midwest. I'm not aying that there are none there, but I haven't come across any.
to Bor: that 9935 format seems to apply only to New Jersey. There are other places that use other suffixes like 9980 in Vermont. Or if your area uses 00xx or 12xx for official numbers, you may need to look there.
to Majestic: I wonder why your URL was removed. Each of the other posters had a lin in thir post, and you were just trying to put the infoz out there. Ain't nothing wrong with that, right?
to Gizmo: Why'd you edit that URL?