[afnog] Weekly Routing Table Report

Routing Table Analysis cscora at apnic.net
Sat Dec 18 04:06:51 EAT 2004


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
Daily listings are sent to bgp-stats at lists.apnic.net

If you have any comments please contact Philip Smith <pfs at cisco.com>.

Routing Table Report   04:00 +10GMT Sat 18 Dec, 2004

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

BGP routing table entries examined:                              152880
    Prefixes after maximum aggregation:                           89665
    Unique aggregates announced to Internet:                      72514
Total ASes present in the Internet Routing Table:                 18664
Origin-only ASes present in the Internet Routing Table:           16199
Origin ASes announcing only one prefix:                            7612
Transit ASes present in the Internet Routing Table:                2465
Transit-only ASes present in the Internet Routing Table:             77
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      17
Prefixes from unregistered ASNs in the Routing Table:                 8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             16
Number of addresses announced to Internet:                   1361000796
    Equivalent to 81 /8s, 31 /16s and 57 /24s
    Percentage of available address space announced:               36.7
    Percentage of allocated address space announced:               59.3
    Percentage of available address space allocated:               61.9
Total number of prefixes smaller than registry allocations:       70903

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                    29890
    Total APNIC prefixes after maximum aggregation:               14684
Prefixes being announced from the APNIC address blocks:           27944
    Unique aggregates announced from the APNIC address blocks:    14492
APNIC Region origin ASes present in the Internet Routing Table:    2176
APNIC Region origin ASes announcing only one prefix:                651
APNIC Region transit ASes present in the Internet Routing Table:    327
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              169579520
    Equivalent to 10 /8s, 27 /16s and 148 /24s
    Percentage of available APNIC address space announced:         77.4

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
                       23552-24575
APNIC Address Blocks   58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     86347
    Total ARIN prefixes after maximum aggregation:                52074
Prefixes being announced from the ARIN address blocks:            66077
    Unique aggregates announced from the ARIN address blocks:     23778
ARIN Region origin ASes present in the Internet Routing Table:     9785
ARIN Region origin ASes announcing only one prefix:                3537
ARIN Region transit ASes present in the Internet Routing Table:     960
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               237025792
    Equivalent to 14 /8s, 32 /16s and 186 /24s
    Percentage of available ARIN address space announced:          70.6

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, 21504-23551, 25600-26591,
                       26624-27647,29695-30719, 31744-33791
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
                       208/7 and 216/8

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                     28653
    Total RIPE prefixes after maximum aggregation:                19851
Prefixes being announced from the RIPE address blocks:            25545
    Unique aggregates announced from the RIPE address blocks:     16134
RIPE Region origin ASes present in the Internet Routing Table:     6128
RIPE Region origin ASes announcing only one prefix:                3283
RIPE Region transit ASes present in the Internet Routing Table:    1054
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          17
Number of RIPE addresses announced to Internet:               183405312
    Equivalent to 10 /8s, 238 /16s and 139 /24s
    Percentage of available RIPE address space announced:          64.3

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
                       2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-34815
RIPE Address Blocks    62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
                       and 217/8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    6732
    Total LACNIC prefixes after maximum aggregation:               2363
Prefixes being announced from the LACNIC address blocks:           6594
    Unique aggregates announced from the LACNIC address blocks:    4053
LACNIC Region origin ASes present in the Internet Routing Table:    408
LACNIC Region origin ASes announcing only one prefix:               120
LACNIC Region transit ASes present in the Internet Routing Table:    77
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              16897024
    Equivalent to 1 /8s, 1 /16s and 212 /24s
    Percentage of available LACNIC address space announced:        50.4

LACNIC AS Blocks       26592-26623, 27648-28671
LACNIC Address Blocks  200/7

Emerging AfriNIC Region Analysis Summary
----------------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1250
    Total AfriNIC prefixes after maximum aggregation:               693
Prefixes being announced from the AfriNIC address blocks:           823
    Unique aggregates announced from the AfriNIC address blocks:    650
AfriNIC Region origin ASes present in the Internet Routing Table:    93
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   13
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              2073344
    Equivalent to 0 /8s, 31 /16s and 163 /24s
    Percentage of available AfriNIC address space announced:       12.4

AfriNIC AS Blocks      <none>
AfriNIC Address Blocks 196/8

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      866       4401         166   Data Communications Bureau
 1221      794       1184         568   Telstra Pty Ltd
 9583      577         47          37   Satyam Infoway Ltd.,
 4766      551       3409         271   Korea Internet Exchange for "
 4755      436        176          95   Videsh Sanchar Nigam Ltd. Aut
17676      390       5852          60   XTAGE CORPORATION
 9443      362         71          77   Primus Telecommunications
 2907      356       1873         329   SINET Japan
 9929      354        164          40   China Netcom Corp.
17557      323         23         158   Pakistan Telecom
  703      313        344         244   UUNET
10036      288         26         264   C&M Communication Co. Ltd.
 2764      285        272         230   connect.com.au pty ltd
 7474      270        267         199   Optus Communications Pty Ltd
 4802      233         28         141   Wantree Development
 9800      232        381          71   CHINA UNICOM
 9498      229         81          53   BHARTI BT INTERNET LTD.
 7563      226         48         164   Korea Internet Infrastructure
 4780      221        225          27   Digital United Inc.
17974      220         63          14   PT TELEKOMUNIKASI INDONESIA

ARIN Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1426       6587         984   AT&T WorldNet Services
  701     1076       8352         891   UUNET Technologies, Inc. 
  721     1063      21824         298   DLA Systems Automation Center
 1239      935       2882         624   Sprint 
 2386      862        529         614   AT&T Data Communications Serv
 6197      823        384         354   BellSouth Network Solutions, 
 4323      815        670         220   Time Warner Telecom
18566      755        208           6   Covad Communications 
  209      652       3405         505   Qwest 
 3356      626      10908         456   Level 3 Communications, LLC 
20115      572        464         299   Charter Communications 
 3561      543       2368         412   Cable & Wireless USA 
  852      531       1142         405   Telus Advanced Communications
 7843      483        733          95   Adelphia Corp. 
 6478      466        814          97   AT&T Worldnet Services 
 7132      452       8292         385   SBC Internet Services
 6198      447        382         202   BellSouth Network Solutions, 
27364      441         36          19   Armstrong Cable Services 
 5668      423         87          18   Century Telephone 
22909      422        906          64   Comcast Cable Corporation 

RIPE Region per AS prefix count summary
---------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      629       2024         520   UUNET - Commercial IP service
 3320      300       2995         236   Deutsche Telekom AG
 3301      286       1112         274   TeliaNet Sweden
 8220      275        463         263   COLT Internet - International
21502      272         40           3   NUMERICABLE is a cabled netwo
  680      251       2025         239   DFN-IP service G-WiN
 3246      223        482         219   Song Networks
13083      217         51           8   Mannesmann Datenverarbeitung 
 1257      206        708         172   SWIPnet Swedish IP Network
 8708      205        116         189   Romania Data Systems S.A.
 5515      193        842         140   Sonera Solution Autonomous Sy
  786      176       1794         176   The JANET IP Service
 3215      175        990          77   France Telecom Transpac
 6746      168         47         136   Dynamic Network Technologies,
 8866      162         18          21   Bulgarian Telecommunication C
  719      159        322         104   LANLINK autonomous system
 3269      155       1329          69   TELECOM ITALIA
 3300      153        165          77   AUCS Communications Services 
25186      144        138         100   France Telecom Transpac's Tra
 5400      135        216         118   BT Ignite European Backbone

LACNIC Region per AS prefix count summary
-----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6140      348        139          78   ImpSat
 8151      319        473         140   UniNet S.A. de C.V. 
16814      234         14           6   NSS, S.A. 
11172      215         99          55   Servicios Alestra S.A de C.V 
 6147      192         94          20   Telefonica Del Peru 
11664      169         14          24   Keytech SA 
 7303      149         66          24   Telecom Argentina Stet-France
 6505      140         90          96   Global One Communicaoes Ltda 
 6503      128        148          85   AVANTEL, S.A. 
11992      102          9          31   Integrated Systems 
14117       98          6           4   Telefonica del Sur S.A. 
11556       97         48           3   Cable-Wireless Panama 
14420       90          6          32   ANDINATEL S.A. 
 6535       84          7          25   Chilesat Servicios  Empresari
11311       83          8          23   Sinectis S.A. 
13999       83         52           9   Mega Cable S.A. de C.V. 
10481       82         32           7   Prima S.A. 
 4270       80         18           9   Red de Interconexion Universi
 5639       77          8           8   Telecommunications Services o
15311       77         23          37   Telefonica Empresas 

AfriNIC Region per AS prefix count summary
------------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      269        636         226   The Internet Solution 
 5536      113         16           4   Internet Egypt Network
 2018      102        297          98   Tertiary Education Network 
 2905       75        271          68   The Internetworking Company o
20928       55         16           2   Noor Advanced Technologies AS
24835       42         34           7   RAYA Telecom - Egypt
 6713       34         38           9   Itissalat Al-MAGHRIB
 9129       33          3           2   UUNET Kenya
 5713       27        141          24   Telkom SA Ltd 
12455       26          5           4   Jambonet Autonomous system
 8524       25          1           4   AUCEGYPT Autonomous System
16637       22         10          19   Johnnic e-Ventures 
10798       18          1          12   Standard Bank of South Africa
12258       18          3          12   Vodacom Internet Company 
 8452       17         20           5   TEDATA
21280       17          2           3   Swift Global Kenya Ltd.Is an 
 8346       15          7          14   SONATEL-AS Autonomous System
15706       15          4           2   Sudatel Internet Exchange Aut
21491       14          1           3   UTL On-line is RF broadband I
15808       13          1           2   Communication Solutions Ltd i

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
  721      1063         765      DLA Systems Automation Center
18566       755         749      Covad Communications 
 4134       866         700      Data Communications Bureau
 4323       815         595      Time Warner Telecom
 9583       577         540      Satyam Infoway Ltd.,
 6197       823         469      BellSouth Network Solutions, 
27364       441         422      Armstrong Cable Services 
 5668       423         405      Century Telephone 
22773       415         392      Cox Communications, Inc. Atla
 7843       483         388      Adelphia Corp. 
 6478       466         369      AT&T Worldnet Services 
22909       422         358      Comcast Cable Corporation 
 6467       375         344      E.Spire Communications, Inc. 
 4755       436         341      Videsh Sanchar Nigam Ltd. Aut
17676       390         330      XTAGE CORPORATION
 9929       354         314      China Netcom Corp.
 1239       935         311      Sprint 
13609       328         294      Choice One Communications Inc
 4355       394         293      EarthLink, Inc. 
 9443       362         285      Primus Telecommunications

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

Bad AS  Designation  Network              Transit AS  Description
 1877   UNALLOCATED   192.108.199.0/24      1876       Southern Methodist U
64512   PRIVATE       199.213.17.0/25      15296       Netera Alliance Inc.
64512   PRIVATE       199.213.17.128/25    15296       Netera Alliance Inc.
64512   PRIVATE       199.216.97.0/28      15296       Netera Alliance Inc.
65002   PRIVATE       208.179.184.0/24     11509       The Pajo Group 
65529   PRIVATE       216.21.199.0/24      14697       VDot.Net 
65529   PRIVATE       216.152.237.0/24     14697       VDot.Net 
65000   PRIVATE       217.68.56.0/22       29263       HAAGnet, municipalit

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
132.0.0.0/10           721     DLA Systems Automation Center
137.0.0.0/13           721     DLA Systems Automation Center
158.0.0.0/13           721     DLA Systems Automation Center
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.83.16.0/20        5515     Sonera Solution Autonomous Sy
192.83.32.0/19        5515     Sonera Solution Autonomous Sy
192.83.96.0/22        5515     Sonera Solution Autonomous Sy
192.83.100.0/24       5515     Sonera Solution Autonomous Sy
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.135.50.0/24       7018     AT&T WorldNet Services
192.136.79.0/24        719     LANLINK autonomous system
192.172.0.0/19         721     DLA Systems Automation Center
192.172.11.0/24        721     DLA Systems Automation Center
192.200.100.0/24      7018     AT&T WorldNet Services

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:20       /9:3       /10:7       /11:15      /12:59      
/13:138     /14:314     /15:562     /16:8219    /17:2325    /18:4006    
/19:10010   /20:10586   /21:8133    /22:11327   /23:12875   /24:83369   
/25:268     /26:238     /27:124     /28:57      /29:39      /30:137     
/31:0       /32:49      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566      740           755      Covad Communications 
 6197      669           823      BellSouth Network Solutions, 
 2386      629           862      AT&T Data Communications Serv
 7018      583          1426      AT&T WorldNet Services
27364      427           441      Armstrong Cable Services 
 9583      407           577      Satyam Infoway Ltd.,
  702      384           629      UUNET - Commercial IP service
 1239      373           935      Sprint 
 4766      371           551      Korea Internet Exchange for "
 5668      366           423      Century Telephone 
 6198      326           447      BellSouth Network Solutions, 
10036      288           288      C&M Communication Co. Ltd.
 6517      286           309      Yipes Communications, Inc. 
13609      286           328      Choice One Communications Inc
 6467      285           375      E.Spire Communications, Inc. 
 9929      283           354      China Netcom Corp.
21502      269           272      NUMERICABLE is a cabled netwo
 4323      264           815      Time Warner Telecom
  701      261          1076      UUNET Technologies, Inc. 
11456      258           303      Carolina Online, Inc. 

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

   4:4         8:10       12:1458     13:1        15:5        16:2      
  17:3        18:3        20:4        24:713      32:67       33:3      
  38:87       40:55       44:3        47:2        52:3        55:2      
  56:3        57:23       60:11       61:697      62:520      63:1846   
  64:2522     65:2084     66:2521     67:478      68:520      69:841    
  70:46       71:1        72:19       80:523      81:586      82:370    
  83:212      84:81       85:34      128:117     129:164     130:89     
 131:192     132:37      134:190     135:30      136:189     137:70     
 138:189     139:34      140:230     141:110     142:135     143:123    
 144:165     145:40      146:283     147:95      148:264     149:129    
 150:92      151:63      152:118     153:70      154:2       155:132    
 156:62      157:68      158:137     159:162     160:61      161:61     
 162:381     163:83      164:222     165:157     166:125     167:222    
 168:366     169:130     170:312     171:8       192:5650    193:3005   
 194:2212    195:1550    196:564     198:3902    199:3310    200:3936   
 201:37      202:4974    203:5810    204:3580    205:2113    206:2293   
 207:2541    208:2107    209:3065    210:1575    211:702     212:1152   
 213:1260    214:229     215:31      216:3747    217:1067    218:181    
 219:86      220:300     221:86      222:32     

End of report


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