ARIN Region Weekly Routing Report

Routing Analysis cscora at dev.apnic.net
Thu Jan 18 13:07:50 EST 2001


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   19 Jan, 2001

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

BGP routing table entries examined:                            100161
Origin ASes present in the Internet Routing Table:               9709
Origin ASes announcing only one prefix:                          3439
Transit ASes present in the Internet Routing Table:              1290
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    17
Illegal AS announcements present in the Routing Table:             17
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:                 1196700186
    Equivalent to 71 /8s, 84 /16s and 50 /24s
    Percentage of available address space announced:             32.3
    Percentage of allocated address space announced:             63.3
    Percentage of available address space allocated:             51.0

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

Prefixes being announced by ARIN Region ASes:                   69416
Prefixes being announced from the ARIN address blocks:          46988
ARIN Region origin ASes present in the Internet Routing Table:   5907
ARIN Region origin ASes announcing only one prefix:              1712
ARIN Region transit ASes present in the Internet Routing Table:   621
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        17
Number of ARIN addresses announced to Internet:             173035215
    Equivalent to 10 /8s, 80 /16s and 78 /24s
    Percentage of available ARIN address space announced:        79.3

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 - 20479
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     2608       3548       UUNET Technologies, Inc.
    1     1022       4628       BBN Planet
 7018      902       3023       AT&T
 1239      694       1636       Sprint ICM-Inria
 7046      694        521       UUNET Technologies, Inc.
 2914      637       1289       Verio, Inc.
  174      618       2823       PSINet Inc.
 2548      611        551       Digital Express Group, Inc.
  705      561         36       UUNET Technologies, Inc.
 3561      560       1283       Cable & Wireless USA
 2551      552        345       NETCOM On-Line Communication 
 3549      512        436       Frontier GlobalCenter
 8013      506         64       PSINet Ltd. Canada
 3908      447        281       Supernet, Inc.
  209      431        569       Qwest
 3602      430         79       Sprint Canada
 4293      427         55       Cable & Wireless USA
  271      424        271       BCnet Backbone
 6082      392         64       Management Analysis, Incorpor
 8151      351        184       UniNet S.A. de C.V.

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

  ASN   No of nets  /19 equiv  Description
  701     2608       3548       UUNET Technologies, Inc.
 1221     2367       1189       Telstra
    1     1022       4628       BBN Planet
 7018      902       3023       AT&T
 1239      694       1636       Sprint ICM-Inria
 7046      694        521       UUNET Technologies, Inc.
 2914      637       1289       Verio, Inc.
  174      618       2823       PSINet Inc.
 2548      611        551       Digital Express Group, Inc.
  705      561         36       UUNET Technologies, Inc.
 3561      560       1283       Cable & Wireless USA
 2551      552        345       NETCOM On-Line Communication 
 3549      512        436       Frontier GlobalCenter
 8013      506         64       PSINet Ltd. Canada
 3908      447        281       Supernet, Inc.
 2764      435        123       connect.com.au pty ltd
  209      431        569       Qwest
 3602      430         79       Sprint Canada
 4293      427         55       Cable & Wireless USA
  271      424        271       BCnet Backbone

List of Unregistered ASNs (Global)
----------------------------------

Bad AS  Designation  Network              Transit AS  Description
 2027   UNALLOCATED   150.185.0.0/16       10530       Interpacket Group, I
 2027   UNALLOCATED   150.185.128.0/18      8143       Publicom Corp.
 2027   UNALLOCATED   150.186.0.0/16       10530       Interpacket Group, I
 2027   UNALLOCATED   150.187.0.0/16       10530       Interpacket Group, I
 2027   UNALLOCATED   150.188.0.0/16       10530       Interpacket Group, I
 2027   UNALLOCATED   150.189.0.0/16       10530       Interpacket Group, I
 1877   UNALLOCATED   192.108.196.0/24      1800       SPRINT
 1877   UNALLOCATED   192.108.209.0/24      1880       Stupi, house man's 
 1877   UNALLOCATED   192.108.210.0/24      1880       Stupi, house man's 
 1877   UNALLOCATED   192.108.214.0/24      1800       SPRINT
 5757   UNALLOCATED   192.239.13.0/24        701       UUNET Technologies, 
65160   PRIVATE       193.150.192.0/18      6830       chello broadband
65010   PRIVATE       195.98.237.0/24       2200       INRIA-Rocquencourt
65500   PRIVATE       203.166.86.0/24      10084       Western Australian I
65103   PRIVATE       204.29.186.0/23       6992       Netscape Communicati
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 
65160   PRIVATE       213.200.128.0/18      6830       chello broadband

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

Network            Origin AS  Description
91.16.23.0/24        11770     Net56

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       /11:10      /12:31      
/13:59      /14:194     /15:305     /16:6777    /17:1010    /18:2027    
/19:6263    /20:4434    /21:4318    /22:6450    /23:8419    /24:58056   
/25:291     /26:411     /27:244     /28:182     /29:154     /30:275     
/31:1       /32:220     

Number of /24s announced per /8 block (Global)
----------------------------------------------

   9:2        12:306      15:1        24:640      26:1        32:29     
  38:8        44:2        53:2        55:1        57:9        61:61     
  62:102      63:1559     64:1177     65:24       66:78       91:1      
 128:28      129:190     130:20      131:31      132:9       133:4      
 134:94      135:7       136:121     137:78      138:190     139:68     
 140:289     141:19      142:61      143:36      144:123     145:11     
 146:135     147:89      148:119     149:109     150:22      151:330    
 152:963     153:118     154:58      155:71      156:14      157:102    
 158:57      159:52      160:18      161:57      162:63      163:122    
 164:112     165:98      166:175     167:77      168:71      169:31     
 170:193     171:2       192:5403    193:1808    194:1982    195:818    
 196:394     198:3757    199:3396    200:1737    202:2469    203:5216   
 204:3538    205:2488    206:2825    207:3003    208:2846    209:3438   
 210:378     211:131     212:760     213:293     214:8       215:11     
 216:2629    217:88     

End of report



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