ARIN Region Weekly Routing Report

[Routing Analysis]

This is an automated weekly mailing sent to the ARIN RTMA WG e-mail list
describing the state of the Internet Routing Table in North and South America
and Southern Africa. Daily listings are sent to bgp-stats at lists.apnic.net

For a graphical representation, please see http://www.apnic.net/stats/bgp.

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Americas and Southern Africa Report   03 Nov, 2000

Analysis Summary
----------------

BGP routing table entries examined:                             89629
Origin ASes present in the Internet Routing Table:               8896
Origin ASes announcing only one prefix:                          3033
Transit ASes present in the Internet Routing Table:              1235
Average AS path length visible in the Internet Routing Table:     5.5
    Max AS path length visible:                                    15
Illegal AS announcements present in the Routing Table:              6
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:     0
Number of addresses announced to Internet:                 1168799460
    Equivalent to 69 /8s, 170 /16s and 118 /24s
    Percentage of available address space announced:             31.5
    Percentage of allocated address space announced:             61.8
    Percentage of available address space allocated:             51.0

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                   61999
Prefixes being announced from the ARIN address blocks:          43214
ARIN Region origin ASes present in the Internet Routing Table:   5389
ARIN Region origin ASes announcing only one prefix:              1514
ARIN Region transit ASes present in the Internet Routing Table:   603
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        15
Number of ARIN addresses announced to Internet:             167316616
    Equivalent to 9 /8s, 249 /16s and 12 /24s
    Percentage of available ARIN address space announced:        76.7

ARIN AS Blocks         1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
                       2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
                       3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
                       7723 - 8191, 10240 - 12287, 13312 - 15359
                       16384 - 17407, 18432 - 19455
ARIN Address Blocks    63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /19 equiv  Description
  701     2107       3421       UUNET Technologies, Inc.
 7018      893       3025       AT&T
    1      887       4535       BBN Planet
 1239      704       1628       Sprint ICM-Inria
 7046      695        508       UUNET Technologies, Inc.
 2914      691       1329       Verio, Inc.
  705      688         39       UUNET Technologies, Inc.
  816      605        143       UUNET Canada4
  174      603       2717       PSINet Inc.
 3561      567       1366       Cable & Wireless USA
 8013      518         64       PSINet Ltd. Canada
  209      508        553       Qwest
 3549      479        426       Frontier GlobalCenter
  271      454        378       BCnet Backbone
 3908      446        290       Supernet, Inc.
 4293      433         55       Cable & Wireless USA
 2548      428        546       Digital Express Group, Inc.
 3602      423         74       Sprint Canada
  690      340         19       Merit Network

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /19 equiv  Description
  701     2107       3421       UUNET Technologies, Inc.
 7018      893       3025       AT&T
    1      887       4535       BBN Planet
 1221      752        979       Telstra
 1239      704       1628       Sprint ICM-Inria
 7046      695        508       UUNET Technologies, Inc.
 2914      691       1329       Verio, Inc.
  705      688         39       UUNET Technologies, Inc.
  816      605        143       UUNET Canada4
  174      603       2717       PSINet Inc.
 3561      567       1366       Cable & Wireless USA
 8013      518         64       PSINet Ltd. Canada
  209      508        553       Qwest
 3549      479        426       Frontier GlobalCenter
  271      454        378       BCnet Backbone
 3908      446        290       Supernet, Inc.
 4293      433         55       Cable & Wireless USA
 2548      428        546       Digital Express Group, Inc.
 2764      426        129       connect.com.au pty ltd

List of Illegal AS's (Global)
-----------------------------

Bad AS  Designation  Network              Transit AS  Description
64750   PRIVATE       63.67.32.0/24        15218       Communications 
65519   PRIVATE       64.124.60.0/24        6461       AboveNet Communicati
65519   PRIVATE       64.124.61.0/24        6461       AboveNet Communicati
65000   PRIVATE       64.209.92.0/24       14051       Roseville Telephone 
65000   PRIVATE       64.209.95.0/24       14051       Roseville Telephone 
57158   RESERVED      210.56.192.0/20       4628       Pacific Internet Pte

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:21       /9:4       /10:5       /11:9       /12:32      
/13:56      /14:178     /15:287     /16:6677    /17:943     /18:1888    
/19:6027    /20:3909    /21:3884    /22:5810    /23:7523    /24:51972   
/25:89      /26:123     /27:44      /28:28      /29:60      /30:24      
/31:0       /32:36      

End of report