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   29 Sep, 2000

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

BGP routing table entries examined:                             91099
Origin ASes present in the Internet Routing Table:               8654
Origin ASes announcing only one prefix:                          2919
Transit ASes present in the Internet Routing Table:              1180
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:              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:                 1188671011
    Equivalent to 70 /8s, 217 /16s and 174 /24s
    Percentage of available address space announced:             32.1
    Percentage of allocated address space announced:             62.9
    Percentage of available address space allocated:             51.0

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

Prefixes being announced by ARIN Region ASes:                   63250
Prefixes being announced from the ARIN address blocks:          43368
ARIN Region origin ASes present in the Internet Routing Table:   5232
ARIN Region origin ASes announcing only one prefix:              1458
ARIN Region transit ASes present in the Internet Routing Table:   577
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        14
Number of ARIN addresses announced to Internet:             165674587
    Equivalent to 9 /8s, 223 /16s and 254 /24s
    Percentage of available ARIN address space announced:        76.0

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     2002       3317       UUNET Technologies, Inc.
    1      986       4550       BBN Planet
 1785      879        789       Sprint ICM
 7018      861       3023       AT&T
 7046      735        525       UUNET Technologies, Inc.
 2914      707       1332       Verio, Inc.
 1239      680       1739       Sprint ICM-Inria
 5696      661        124       WINSTAR
  816      658        176       UUNET Canada4
  174      605       2733       PSINet Inc.
 3561      605       1505       Cable & Wireless USA
  705      543         33       UUNET Technologies, Inc.
 8013      508         65       PSINet Ltd. Canada
 3549      495        413       Frontier GlobalCenter
  209      476        552       Qwest
  271      466        380       BCnet Backbone
 3908      444        289       Supernet, Inc.
 4293      431         63       Cable & Wireless USA
 3602      429         78       Sprint Canada

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

  ASN   No of nets  /19 equiv  Description
  701     2002       3317       UUNET Technologies, Inc.
    1      986       4550       BBN Planet
 1221      912        975       Telstra
 1785      879        789       Sprint ICM
 7018      861       3023       AT&T
 7046      735        525       UUNET Technologies, Inc.
 2914      707       1332       Verio, Inc.
 1239      680       1739       Sprint ICM-Inria
 5696      661        124       WINSTAR
  816      658        176       UUNET Canada4
  174      605       2733       PSINet Inc.
 3561      605       1505       Cable & Wireless USA
  705      543         33       UUNET Technologies, Inc.
 8013      508         65       PSINet Ltd. Canada
 3549      495        413       Frontier GlobalCenter
  209      476        552       Qwest
  271      466        380       BCnet Backbone
 2764      463        129       connect.com.au pty ltd
 3908      444        289       Supernet, Inc.

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

Bad AS  Designation  Network              Transit AS  Description
65002   PRIVATE       63.67.121.0/24        7046       UUNET Technologies, 
65004   PRIVATE       63.77.198.0/24        7046       UUNET Technologies, 
65002   PRIVATE       63.90.91.0/24         7046       UUNET Technologies, 
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

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:22       /9:5       /10:5       /11:9       /12:29      
/13:59      /14:174     /15:292     /16:6653    /17:940     /18:1853    
/19:5939    /20:3741    /21:3825    /22:5832    /23:7853    /24:52851   
/25:189     /26:344     /27:84      /28:78      /29:98      /30:113     
/31:0       /32:111     

End of report