ARIN Region Weekly Routing Report

Routing Analysis cscora at dev.apnic.net
Thu Jan 4 13:06:06 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   05 Jan, 2001

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

BGP routing table entries examined:                            102896
Origin ASes present in the Internet Routing Table:               9558
Origin ASes announcing only one prefix:                          3371
Transit ASes present in the Internet Routing Table:              1284
Average AS path length visible in the Internet Routing Table:     5.3
    Max AS path length visible:                                    18
Illegal AS announcements present in the Routing Table:             13
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:                 1210117316
    Equivalent to 72 /8s, 32 /16s and 236 /24s
    Percentage of available address space announced:             32.6
    Percentage of allocated address space announced:             64.0
    Percentage of available address space allocated:             51.0

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

Prefixes being announced by ARIN Region ASes:                   69078
Prefixes being announced from the ARIN address blocks:          46709
ARIN Region origin ASes present in the Internet Routing Table:   5823
ARIN Region origin ASes announcing only one prefix:              1678
ARIN Region transit ASes present in the Internet Routing Table:   618
Average ARIN Region AS path length visible:                       5.2
    Max ARIN Region AS path length visible:                        13
Number of ARIN addresses announced to Internet:             172465447
    Equivalent to 10 /8s, 71 /16s and 157 /24s
    Percentage of available ARIN address space announced:        79.1

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     2597       3562       UUNET Technologies, Inc.
    1     1020       4595       BBN Planet
 7018      898       3041       AT&T
 8013      729         71       PSINet Ltd. Canada
 1239      686       1637       Sprint ICM-Inria
 7046      673        512       UUNET Technologies, Inc.
 2548      654        561       Digital Express Group, Inc.
 2914      637       1291       Verio, Inc.
  174      617       2755       PSINet Inc.
 3561      573       1304       Cable & Wireless USA
  705      568         36       UUNET Technologies, Inc.
 6082      543         66       Management Analysis, Incorpor
 2551      518        345       NETCOM On-Line Communication 
 3549      500        434       Frontier GlobalCenter
 3908      449        281       Supernet, Inc.
 3602      436         79       Sprint Canada
  209      433        561       Qwest
  271      433        271       BCnet Backbone
 4293      425         54       Cable & Wireless USA
  690      390         38       Merit Network

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

  ASN   No of nets  /19 equiv  Description
 9768     3503        101       PubNet (Korea Telecom)
  701     2597       3562       UUNET Technologies, Inc.
 1221     2356       1191       Telstra
    1     1020       4595       BBN Planet
 7018      898       3041       AT&T
 8013      729         71       PSINet Ltd. Canada
 1239      686       1637       Sprint ICM-Inria
 7046      673        512       UUNET Technologies, Inc.
 2548      654        561       Digital Express Group, Inc.
 2914      637       1291       Verio, Inc.
  174      617       2755       PSINet Inc.
 3561      573       1304       Cable & Wireless USA
  705      568         36       UUNET Technologies, Inc.
 6082      543         66       Management Analysis, Incorpor
 2551      518        345       NETCOM On-Line Communication 
 3549      500        434       Frontier GlobalCenter
 3908      449        281       Supernet, Inc.
 2764      436        128       connect.com.au pty ltd
 3602      436         79       Sprint Canada
  209      433        561       Qwest

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

Bad AS  Designation  Network              Transit AS  Description
65501   PRIVATE       64.21.103.0/24       16890       Network Services, In
 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      1880       Stupi, house man's 
 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      1880       Stupi, house man's 
 5757   UNALLOCATED   192.239.13.0/24        701       UUNET Technologies, 
 5757   UNALLOCATED   207.19.224.0/24        701       UUNET Technologies, 

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        /8:22       /9:4       /10:5       /11:9       /12:32      
/13:59      /14:195     /15:307     /16:6749    /17:1018    /18:1985    
/19:6238    /20:4339    /21:4234    /22:6421    /23:8415    /24:58137   
/25:1121    /26:1622    /27:678     /28:209     /29:668     /30:290     
/31:1       /32:138     

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

   9:2        12:301      15:1        24:623      26:1        32:7      
  38:8        44:2        53:2        55:1        57:9        61:63     
  62:121      63:1499     64:1096     65:14       66:56       91:1      
 128:29      129:181     130:18      131:28      132:9       133:3      
 134:86      135:7       136:116     137:112     138:189     139:59     
 140:105     141:19      142:46      143:34      144:93      145:14     
 146:129     147:89      148:121     149:105     150:23      151:333    
 152:1038    153:110     154:230     155:60      156:14      157:99     
 158:52      159:46      160:18      161:55      162:63      163:117    
 164:106     165:96      166:174     167:73      168:69      169:29     
 170:191     171:2       192:5366    193:1815    194:2005    195:824    
 196:381     198:3743    199:3425    200:1778    202:2490    203:5169   
 204:3632    205:2529    206:2859    207:2933    208:2817    209:3413   
 210:588     211:192     212:738     213:306     214:7       215:11     
 216:2635    217:84     

End of report



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