In message <9604041959.AA10553@butler.ncube.com>, Vadim Antonov writes:

Avi Freedman <freedman@netaxs.com> wrote:

...

Unless they have a real plan & need to get about 128 buildings full of 100 machines/building online, it's a lost cause. You already need a /18 to be heard from Sprint in >= 207/8. Unless you're a customer of Sprint.

And if you're a customer of Sprint you'll get aggregated in something like /14.

Not if you are a customer looking for portable address space.

--vadim

Number of prefixes covered by 205/8 to 208/8 with length >18 advertised to AS1673 (preferred route only - I think this will come down to AS path length): number AS Number > 19: Number > 20: 1 293 2 2685 1 293 1 293 3 3407 2 2685 2 2685 15 1740 14 1740 14 1740 23 1324 23 1324 23 1324 25 174 25 174 25 174 27 2551 27 2551 27 2551 64 1 64 1 60 1 109 1665 109 1665 107 1665 458 701 432 701 406 701 716 690 686 690 676 690 950 1239 763 3561 720 3561 1095 3561 926 1239 897 1239 Look how comes out announcing the most long prefixes in the TWD. At least the other providers that announce them accept them from their peers. There were 3795 prefixes covered by 205/8 to 208/8 and growing, mostly small very difficult or impossible to further aggregate prefixes. Curtis ps- Number of TWD prefixes with length <= 18 by border AS: 1 1664 1 1665 1 3407 2 1324 4 174 4 1740 6 2551 10 1 28 701 54 690 78 1239 118 3561