Reduced AS/route visibility

[Jordan Savoca <jsavoca@posteo.net>]

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It seems there has been a significant reduction in the visibility of
certain routes in the IPFire dataset recently, and/or spurious routes
taking place of legitimate announcements.

For example, 209.38.204.47 is originated by AS14061 and announced in
209.38.192.0/19, but IPFire erroneously sees 209.38.0.0/16 and locates
no corresponding AS.

Here are a few more prefixes with the same issue:

+----------+------------------+-----------------+------------+
|   ASN    |      Prefix      |  IPFire Prefix  | IPFire ASN |
+----------+------------------+-----------------+------------+
| AS64425  | 45.148.122.0/24  | 45.148.120.0/22 | None       |
| AS197540 | 94.16.116.0/22   | 94.16.96.0/19   | None       |
| AS36352  | 198.23.234.0/23  | 198.23.128.0/17 | None       |
| AS63949  | 172.105.192.0/19 | 172.104.0.0/15  | None       |
+----------+------------------+-----------------+------------+

Thanks so much for all your hard work,

--
Jordan