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Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 21 Jan 2006 04:08:53 +1000 (EST)


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 () lists apnic net

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

Routing Table Report   04:00 +10GMT Sat 21 Jan, 2006

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

BGP routing table entries examined:                              178949
    Prefixes after maximum aggregation:                          100271
    Unique aggregates announced to Internet:                      87108
Total ASes present in the Internet Routing Table:                 21341
Origin-only ASes present in the Internet Routing Table:           18557
Origin ASes announcing only one prefix:                            8782
Transit ASes present in the Internet Routing Table:                2784
Transit-only ASes present in the Internet Routing Table:             72
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      25
Prefixes from unregistered ASNs in the Routing Table:                 7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1481701664
    Equivalent to 88 /8s, 80 /16s and 249 /24s
    Percentage of available address space announced:               40.0
    Percentage of allocated address space announced:               59.0
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       86492

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

Prefixes being announced by APNIC Region ASes:                    37594
    Total APNIC prefixes after maximum aggregation:               15880
Prefixes being announced from the APNIC address blocks:           35380
    Unique aggregates announced from the APNIC address blocks:    17327
APNIC Region origin ASes present in the Internet Routing Table:    2461
APNIC Region origin ASes announcing only one prefix:                694
APNIC Region transit ASes present in the Internet Routing Table:    381
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         21
Number of APNIC addresses announced to Internet:              210786016
    Equivalent to 12 /8s, 144 /16s and 86 /24s
    Percentage of available APNIC address space announced:         65.9

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911
APNIC Address Blocks   58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
                       210/7, 218/7, 220/7 and 222/8

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

Prefixes being announced by ARIN Region ASes:                     94137
    Total ARIN prefixes after maximum aggregation:                56355
Prefixes being announced from the ARIN address blocks:            73444
    Unique aggregates announced from the ARIN address blocks:     28140
ARIN Region origin ASes present in the Internet Routing Table:    10457
ARIN Region origin ASes announcing only one prefix:                3882
ARIN Region transit ASes present in the Internet Routing Table:     966
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               282709248
    Equivalent to 16 /8s, 217 /16s and 205 /24s
    Percentage of available ARIN address space announced:          70.2

ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  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, 29696-30719, 31744-33791
                       35840-36863
ARIN Address Blocks    24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
                       198/7, 204/6, 208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     35157
    Total RIPE prefixes after maximum aggregation:                23723
Prefixes being announced from the RIPE address blocks:            32187
    Unique aggregates announced from the RIPE address blocks:     21567
RIPE Region origin ASes present in the Internet Routing Table:     7540
RIPE Region origin ASes announcing only one prefix:                3945
RIPE Region transit ASes present in the Internet Routing Table:    1249
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          25
Number of RIPE addresses announced to Internet:               229825408
    Equivalent to 13 /8s, 178 /16s and 219 /24s
    Percentage of available RIPE address space announced:          68.5

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks    62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   10230
    Total LACNIC prefixes after maximum aggregation:               3444
Prefixes being announced from the LACNIC address blocks:           8400
    Unique aggregates announced from the LACNIC address blocks:    5007
LACNIC Region origin ASes present in the Internet Routing Table:    667
LACNIC Region origin ASes announcing only one prefix:               217
LACNIC Region transit ASes present in the Internet Routing Table:   124
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              24633344
    Equivalent to 1 /8s, 119 /16s and 224 /24s
    Percentage of available LACNIC address space announced:        36.7

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   1824
    Total AfriNIC prefixes after maximum aggregation:               869
Prefixes being announced from the AfriNIC address blocks:          1209
    Unique aggregates announced from the AfriNIC address blocks:    857
AfriNIC Region origin ASes present in the Internet Routing Table:   144
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   24
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       12
Number of AfriNIC addresses announced to Internet:              3022592
    Equivalent to 0 /8s, 46 /16s and 31 /24s
    Percentage of available AfriNIC address space announced:        9.0

AfriNIC AS Blocks      36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4134      978       6450         206   CHINANET-BACKBONE
 9583      840        109          15   Sify Limited
 4755      786        258          63   Videsh Sanchar Nigam Ltd. Aut
 4766      719       3929         303   Korea Telecom (KIX)
 1221      667       1364         474   Telstra Pty Ltd
 7545      514        108          70   TPG Internet Pty Ltd
 9498      507        211          69   BHARTI BT INTERNET LTD.
17676      477       6901         102   Softbank BB Corp.
17488      436         26           9   Hathway IP Over Cable Interne
 9443      408         93          85   Primus Telecommunications
 4802      361         74         156   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      334        217          50   China Netcom Corp.
 7474      330        227         228   SingTel Optus Pty Ltd
18101      327         68          23   Reliance Infocom Ltd Internet
17974      316         77          37   PT TELEKOMUNIKASI INDONESIA
17557      312         25         162   Pakistan Telecom
 4780      282        226          16   Digital United Inc.
 9837      271         78         169   Powertel Ltd
 9800      256        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1477       6297         961   AT&T WorldNet Services
 4323     1203        724         236   Time Warner Telecom
  174     1037       5805         952   Cogent Communications
  721     1025      21921         306   DLA Systems Automation Center
 6197      972        436         506   BellSouth Network Solutions, 
  701      965       8099         807   UUNET Technologies, Inc. 
18566      891        272           8   Covad Communications 
 2386      879        501         687   AT&T Data Communications Serv
 1239      854       2790         607   Sprint 
20115      659        538         341   Charter Communications 
  209      658       3603         525   Qwest 
11492      644         89          12   Cable One 
22773      610       1478          33   Cox Communications, Inc.
19262      594       1703         145   Verizon Global Networks 
  852      571       1092         380   Telus Advanced Communications
  855      571        243          65   Canadian Research Network 
19916      563         49          54   OLM LLC 
 6478      530       1471         293   AT&T Worldnet Services 
 3602      520        127         106   Sprint Canada, Inc. 
 5668      517        143          24   CenturyTel Internet Holdings,

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      587       1954         465   UUNET - Commercial IP service
 3301      302       1071         288   TeliaNet Sweden
 3352      302       1500          34   Ibernet, Internet Access Netw
 3320      283       3485         237   Deutsche Telekom AG
 8220      274        474         268   COLT Telecommunications
  680      244       2024         238   DFN-IP service G-WiN
 3246      228        487         218   Song Networks
 8708      223        275         207   Romania Data Systems S.A.
 6746      215         53         187   Dynamic Network Technologies,
 1257      189        712         169   SWIPnet Swedish IP Network
 3269      185       1925          70   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      173       1794         173   The JANET IP Service
 8866      171         37          13   Bulgarian Telecommunication C
 3215      166       1350          81   France Telecom Transpac
 5400      166        328         136   BT Ignite European Backbone
24863      166         38           9   LINKdotNET AS number
 6830      161        669          33   UPC Distribution Services
 3300      160        170          91   AUCS Communications Services 
12479      156        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      558       1048         213   UniNet S.A. de C.V. 
22047      379        141          44   VTR PUNTO NET S.A. 
11172      303        110          78   Servicios Alestra S.A de C.V 
16814      295         18           7   NSS, S.A. 
13999      191         52          13   Mega Cable S.A. de C.V. 
14117      181         11           6   Telefonica del Sur S.A. 
 7303      152         73          18   Telecom Argentina Stet-France
 6147      150        118          21   Telefonica Del Peru 
11556      130         64           3   Cable-Wireless Panama 
19169      122          8          29   Telconet 
10481      121         48           8   Prima S.A. 
 6503      117        148          78   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      108         88          80   Global One Communicaoes Ltda 
11311      100          8          14   Sinectis S.A. 
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
14522       95         12           8   SatNet S.A. 
 4270       94         17           9   Red de Interconexion Universi

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      276        819         233   The Internet Solution 
 8452      148         60           7   TEDATA
 5536      122          8          16   Internet Egypt Network
 2018      117        298         103   Tertiary Education Network 
15475       76         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
24835       69         34           6   RAYA Telecom - Egypt
 6713       68         71          10   Itissalat Al-MAGHRIB
20928       61         16           2   Noor Advanced Technologies AS
 5713       39        167          35   Telkom SA Ltd 
33774       35          8          26   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
16637       22         10          20   Johnnic e-Ventures 
21280       21          4           4   Swift Global Kenya Ltd.Is an 
12455       19          6           5   Jambonet Autonomous system
12258       17          3          11   Vodacom Internet Company 
15808       17          2           2   Communication Solutions Ltd i

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

  ASN   No of nets  Net Savings Description
 4323      1203         967      Time Warner Telecom
18566       891         883      Covad Communications 
 9583       840         825      Sify Limited
 4134       978         772      CHINANET-BACKBONE
 4755       786         723      Videsh Sanchar Nigam Ltd. Aut
  721      1025         719      DLA Systems Automation Center
11492       644         632      Cable One 
22773       610         577      Cox Communications, Inc.
19916       563         509      OLM LLC 
  855       571         506      Canadian Research Network 
 5668       517         493      CenturyTel Internet Holdings,
 6197       972         466      BellSouth Network Solutions, 
19262       594         449      Verizon Global Networks 
 7545       514         444      TPG Internet Pty Ltd
 9498       507         438      BHARTI BT INTERNET LTD.
17488       436         427      Hathway IP Over Cable Interne
 4766       719         416      Korea Telecom (KIX)
 3602       520         414      Sprint Canada, Inc. 
  812       438         410      Rogers WAVE 
17676       477         375      Softbank BB Corp.

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

Bad AS  Designation  Network              Transit AS  Description
38976   UNALLOCATED   62.192.224.0/19      21166       Satgate autonomous s
38976   UNALLOCATED   62.192.232.0/24      21166       Satgate autonomous s
38972   UNALLOCATED   80.251.144.0/21       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.151.0/24       6828       Ekaterinburg Telegra
38972   UNALLOCATED   80.251.152.0/23       6828       Ekaterinburg Telegra
29544   UNALLOCATED   82.151.64.0/19       12956       Telefonica Data Auto
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 

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
192.43.230.0/24       7575     Australian Academic and Rease
192.44.0.0/24         5501     Fraunhofer Gesellschaft
192.44.0.0/19          702     UUNET - Commercial IP service
192.70.164.0/24      25689     National Research Council of 
192.72.0.0/18         4780     Digital United Inc.
192.72.0.0/16         4780     Digital United Inc.
192.84.205.0/24        719     LANLINK autonomous system
192.119.135.0/24       270     NASA 
192.172.0.0/19         721     DLA Systems Automation Center

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

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:18       /9:5       /10:8       /11:20      /12:87      
/13:196     /14:349     /15:679     /16:8656    /17:2967    /18:4978    
/19:11208   /20:12376   /21:10688   /22:13695   /23:14891   /24:97177   
/25:311     /26:253     /27:202     /28:62      /29:26      /30:55      
/31:3       /32:39      

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

  ASN   No of nets  Total ann.   Description
18566      874           891      Covad Communications 
 6197      785           972      BellSouth Network Solutions, 
 7018      747          1477      AT&T WorldNet Services
 9583      661           840      Sify Limited
11492      635           644      Cable One 
 2386      613           879      AT&T Data Communications Serv
 4323      578          1203      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      519           719      Korea Telecom (KIX)
  855      443           571      Canadian Research Network 
 5668      406           517      CenturyTel Internet Holdings,
 7011      402           468      Citizens Utilities 
  702      372           587      UUNET - Commercial IP service
 1239      369           854      Sprint 
 6198      356           499      BellSouth Network Solutions, 
 6517      342           370      Yipes Communications, Inc. 
15270      334           361      PaeTec.net -a division of Pae
  812      317           438      Rogers WAVE 
22773      315           610      Cox Communications, Inc.
13609      290           332      Choice One Communications Inc

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

   4:3         8:44       12:1618     13:1        15:11       16:3      
  17:3        18:4        20:42       24:762      25:1        30:2      
  32:67       38:186      40:54       44:3        47:3        52:4      
  55:1        56:3        57:34       58:115      59:158      60:181    
  61:812      62:728      63:1890     64:2947     65:2156     66:3023   
  67:586      68:693      69:1385     70:276      71:51       72:573    
  73:20       80:732      81:602      82:505      83:353      84:340    
  85:412      86:269      87:146      88:18       89:4       124:5      
 125:184     128:150     129:174     130:102     131:311     132:34     
 133:7       134:151     135:46      136:169     137:62      138:181    
 139:88      140:446     141:135     142:412     143:144     144:225    
 145:39      146:313     147:134     148:327     149:186     150:112    
 151:72      152:59      153:99      154:6       155:186     156:91     
 157:118     158:153     159:178     160:88      161:68      162:252    
 163:176     164:166     165:176     166:147     167:234     168:478    
 169:139     170:315     171:12      192:5750    193:3353    194:2461   
 195:1730    196:731     198:3915    199:3261    200:4204    201:552    
 202:6457    203:6717    204:3834    205:2059    206:2427    207:2911   
 208:2012    209:3477    210:1846    211:781     212:1263    213:1453   
 214:320     215:40      216:3808    217:1152    218:232     219:135    
 220:642     221:334     222:146    

End of report


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