ARIN Region per AS prefix count listed by address space
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  ASN   No of nets  /20 equiv  Description
23216       63          4       RAMtelecom Telecomunicaciones
    1      137          3       GENUITY 
 1784       31          2       Global NAPs Networks 
 2714       32          1       General Services Administrati
 6079       42          1       RCN Corporation 
19842       13          1       Colosseum Online Inc. 
22250        1          1       ABRANET-BR 
26505        1          1       Latin American and Caribbean 
