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   13 Oct, 2000

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

BGP routing table entries examined:                             90952
Origin ASes present in the Internet Routing Table:               8767
Origin ASes announcing only one prefix:                          2970
Transit ASes present in the Internet Routing Table:              1189
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    14
Illegal AS announcements present in the Routing Table:              3
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:     1
Number of addresses announced to Internet:                 1185086224
    Equivalent to 70 /8s, 162 /16s and 251 /24s
    Percentage of available address space announced:             32.0
    Percentage of allocated address space announced:             62.7
    Percentage of available address space allocated:             51.0

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

Prefixes being announced by ARIN Region ASes:                   63046
Prefixes being announced from the ARIN address blocks:          42993
ARIN Region origin ASes present in the Internet Routing Table:   5293
ARIN Region origin ASes announcing only one prefix:              1480
ARIN Region transit ASes present in the Internet Routing Table:   581
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        13
Number of ARIN addresses announced to Internet:             165902703
    Equivalent to 9 /8s, 227 /16s and 121 /24s
    Percentage of available ARIN address space announced:        76.1

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     2007       3341       UUNET Technologies, Inc.
 7018     1233       3041       AT&T
    1      987       4549       BBN Planet
 2914      700       1332       Verio, Inc.
 1239      686       1675       Sprint ICM-Inria
 7046      684        498       UUNET Technologies, Inc.
  816      622        143       UUNET Canada4
  174      621       2997       PSINet Inc.
 3561      603       1448       Cable & Wireless USA
  705      552         34       UUNET Technologies, Inc.
 8013      513         65       PSINet Ltd. Canada
 3549      504        413       Frontier GlobalCenter
  209      481        560       Qwest
  271      469        380       BCnet Backbone
 3908      443        289       Supernet, Inc.
 4293      437         71       Cable & Wireless USA
 3602      428         82       Sprint Canada
 2548      424        520       Digital Express Group, Inc.
 6082      336         62       Management Analysis, Incorpor

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

  ASN   No of nets  /19 equiv  Description
  701     2007       3341       UUNET Technologies, Inc.
 7018     1233       3041       AT&T
    1      987       4549       BBN Planet
 1221      903        999       Telstra
 2914      700       1332       Verio, Inc.
 1239      686       1675       Sprint ICM-Inria
 7046      684        498       UUNET Technologies, Inc.
  816      622        143       UUNET Canada4
  174      621       2997       PSINet Inc.
 3561      603       1448       Cable & Wireless USA
  705      552         34       UUNET Technologies, Inc.
 8013      513         65       PSINet Ltd. Canada
 3549      504        413       Frontier GlobalCenter
  209      481        560       Qwest
  271      469        380       BCnet Backbone
 2764      458        129       connect.com.au pty ltd
 3908      443        289       Supernet, Inc.
 4293      437         71       Cable & Wireless USA
 3602      428         82       Sprint Canada

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

Bad AS  Designation  Network              Transit AS  Description
65005   PRIVATE       63.101.102.0/24       7407       MCI Telecom. State G
64602   PRIVATE       63.236.57.0/24         209       Qwest
64605   PRIVATE       208.47.206.0/24        209       Qwest

Advertised IANA Reserved Addresses
----------------------------------

Network            Origin AS  Description
27.0.0.0/16           1221     Telstra

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:22       /9:4       /10:5       /11:9       /12:29      
/13:62      /14:175     /15:287     /16:6692    /17:933     /18:1894    
/19:5975    /20:3814    /21:3860    /22:5882    /23:7838    /24:52534   
/25:181     /26:333     /27:82      /28:73      /29:89      /30:87      
/31:0       /32:92      

End of report