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   20 Oct, 2000

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

BGP routing table entries examined:                             92123
Origin ASes present in the Internet Routing Table:               8838
Origin ASes announcing only one prefix:                          2987
Transit ASes present in the Internet Routing Table:              1204
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:              2
Non-routable prefixes present in the Routing Table:                 0
Prefixes being announced from the IANA Reserved Address blocks:     3
Number of addresses announced to Internet:                 1186197556
    Equivalent to 70 /8s, 179 /16s and 240 /24s
    Percentage of available address space announced:             32.0
    Percentage of allocated address space announced:             62.8
    Percentage of available address space allocated:             51.0

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

Prefixes being announced by ARIN Region ASes:                   63451
Prefixes being announced from the ARIN address blocks:          43233
ARIN Region origin ASes present in the Internet Routing Table:   5337
ARIN Region origin ASes announcing only one prefix:              1489
ARIN Region transit ASes present in the Internet Routing Table:   592
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        13
Number of ARIN addresses announced to Internet:             182881019
    Equivalent to 10 /8s, 230 /16s and 138 /24s
    Percentage of available ARIN address space announced:        83.9

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     2041       3358       UUNET Technologies, Inc.
 7018     1228       3041       AT&T
    1      996       4550       BBN Planet
 2914      699       1334       Verio, Inc.
 1239      697       1628       Sprint ICM-Inria
 7046      679        498       UUNET Technologies, Inc.
  816      677        145       UUNET Canada4
  174      622       2989       PSINet Inc.
 3561      578       1407       Cable & Wireless USA
  705      560         34       UUNET Technologies, Inc.
  209      488        552       Qwest
 8013      478         63       PSINet Ltd. Canada
 3549      476        417       Frontier GlobalCenter
  271      469        380       BCnet Backbone
 3908      441        289       Supernet, Inc.
 4293      435         55       Cable & Wireless USA
 2548      426        528       Digital Express Group, Inc.
 3602      426         81       Sprint Canada
  549      349        280       ONET

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

  ASN   No of nets  /19 equiv  Description
  701     2041       3358       UUNET Technologies, Inc.
 7018     1228       3041       AT&T
    1      996       4550       BBN Planet
 1221      872        998       Telstra
 2914      699       1334       Verio, Inc.
 1239      697       1628       Sprint ICM-Inria
 7046      679        498       UUNET Technologies, Inc.
  816      677        145       UUNET Canada4
 9768      655         17       Korea Telecom
  174      622       2989       PSINet Inc.
 3561      578       1407       Cable & Wireless USA
  705      560         34       UUNET Technologies, Inc.
  209      488        552       Qwest
 8013      478         63       PSINet Ltd. Canada
 3549      476        417       Frontier GlobalCenter
  271      469        380       BCnet Backbone
 2764      462        129       connect.com.au pty ltd
 3908      441        289       Supernet, Inc.
 4293      435         55       Cable & Wireless USA

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

Bad AS  Designation  Network              Transit AS  Description
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
50.50.50.0/30         6713     Itissalat Al-MAGHRIB
110.0.253.88/30       9768     Korea Telecom

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      
/13:61      /14:175     /15:290     /16:6694    /17:942     /18:1906    
/19:5995    /20:3871    /21:3880    /22:5903    /23:7858    /24:52955   
/25:363     /26:549     /27:212     /28:111     /29:101     /30:96      
/31:0       /32:92      

End of report