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Weekly Routing Table Report
From: Routing Table Analysis <cscora () apnic net>
Date: Sat, 28 Jan 2006 04:06:57 +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 28 Jan, 2006

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

BGP routing table entries examined:                              180021
    Prefixes after maximum aggregation:                          100565
    Unique aggregates announced to Internet:                      87510
Total ASes present in the Internet Routing Table:                 21387
Origin-only ASes present in the Internet Routing Table:           18586
Origin ASes announcing only one prefix:                            8813
Transit ASes present in the Internet Routing Table:                2801
Transit-only ASes present in the Internet Routing Table:             75
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      22
Prefixes from unregistered ASNs in the Routing Table:                 1
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1484762656
    Equivalent to 88 /8s, 127 /16s and 174 /24s
    Percentage of available address space announced:               40.1
    Percentage of allocated address space announced:               59.1
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       87277

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

Prefixes being announced by APNIC Region ASes:                    37717
    Total APNIC prefixes after maximum aggregation:               15944
Prefixes being announced from the APNIC address blocks:           35495
    Unique aggregates announced from the APNIC address blocks:    17347
APNIC Region origin ASes present in the Internet Routing Table:    2466
APNIC Region origin ASes announcing only one prefix:                695
APNIC Region transit ASes present in the Internet Routing Table:    382
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         21
Number of APNIC addresses announced to Internet:              211573472
    Equivalent to 12 /8s, 156 /16s and 90 /24s
    Percentage of available APNIC address space announced:         66.2

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:                     94801
    Total ARIN prefixes after maximum aggregation:                56437
Prefixes being announced from the ARIN address blocks:            74122
    Unique aggregates announced from the ARIN address blocks:     28259
ARIN Region origin ASes present in the Internet Routing Table:    10473
ARIN Region origin ASes announcing only one prefix:                3903
ARIN Region transit ASes present in the Internet Routing Table:     976
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN addresses announced to Internet:               284486400
    Equivalent to 16 /8s, 244 /16s and 235 /24s
    Percentage of available ARIN address space announced:          70.7

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:                     35370
    Total RIPE prefixes after maximum aggregation:                23868
Prefixes being announced from the RIPE address blocks:            32378
    Unique aggregates announced from the RIPE address blocks:     21748
RIPE Region origin ASes present in the Internet Routing Table:     7566
RIPE Region origin ASes announcing only one prefix:                3956
RIPE Region transit ASes present in the Internet Routing Table:    1252
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          19
Number of RIPE addresses announced to Internet:               230579840
    Equivalent to 13 /8s, 190 /16s and 94 /24s
    Percentage of available RIPE address space announced:          68.7

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:                   10268
    Total LACNIC prefixes after maximum aggregation:               3448
Prefixes being announced from the LACNIC address blocks:           8450
    Unique aggregates announced from the LACNIC address blocks:    5051
LACNIC Region origin ASes present in the Internet Routing Table:    662
LACNIC Region origin ASes announcing only one prefix:               215
LACNIC Region transit ASes present in the Internet Routing Table:   122
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC addresses announced to Internet:              24582400
    Equivalent to 1 /8s, 119 /16s and 25 /24s
    Percentage of available LACNIC address space announced:        36.6

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:                   1858
    Total AfriNIC prefixes after maximum aggregation:               868
Prefixes being announced from the AfriNIC address blocks:          1223
    Unique aggregates announced from the AfriNIC address blocks:    864
AfriNIC Region origin ASes present in the Internet Routing Table:   145
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   26
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              3039488
    Equivalent to 0 /8s, 46 /16s and 97 /24s
    Percentage of available AfriNIC address space announced:        9.1

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      982       6462         204   CHINANET-BACKBONE
 9583      848        109          15   Sify Limited
 4755      793        258          63   Videsh Sanchar Nigam Ltd. Aut
 4766      720       3930         304   Korea Telecom (KIX)
 1221      669       1428         476   Telstra Pty Ltd
 7545      515        108          69   TPG Internet Pty Ltd
 9498      512        211          69   BHARTI BT INTERNET LTD.
17676      480       6949         104   Softbank BB Corp.
17488      435         26           9   Hathway IP Over Cable Interne
 9443      411         94          85   Primus Telecommunications
 4802      366         75         159   Wantree Development
 2907      338       1763         315   SINET Japan
 9929      335        218          50   China Netcom Corp.
 7474      330        227         228   SingTel Optus Pty Ltd
18101      330         68          23   Reliance Infocom Ltd Internet
17557      312         25         161   Pakistan Telecom
 4780      282        226          16   Digital United Inc.
17974      272         77          37   PT TELEKOMUNIKASI INDONESIA
 9837      271         78         169   Powertel Ltd
 9800      259        410          67   CHINA UNICOM

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1472       6248         956   AT&T WorldNet Services
 4323     1208        724         236   Time Warner Telecom
  174     1036       5791         947   Cogent Communications
  721     1026      21938         308   DLA Systems Automation Center
 6197      984        593         475   BellSouth Network Solutions, 
  701      960       8083         803   UUNET Technologies, Inc. 
18566      896        272           8   Covad Communications 
 2386      883        501         691   AT&T Data Communications Serv
 1239      848       2792         601   Sprint 
20115      668        545         348   Charter Communications 
  209      663       3604         529   Qwest 
 6198      635        449         238   BellSouth Network Solutions, 
11492      632         89          12   Cable One 
22773      611       1478          33   Cox Communications, Inc.
19262      604       1743         146   Verizon Global Networks 
  852      570       1092         379   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      559        242          59   Canadian Research Network 
 6478      537       1517         298   AT&T Worldnet Services 
 3602      522        127         106   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      587       1954         463   UUNET - Commercial IP service
 3301      303       1071         289   TeliaNet Sweden
 3352      303       1500          34   Ibernet, Internet Access Netw
 3320      281       3485         235   Deutsche Telekom AG
 8220      275        474         269   COLT Telecommunications
  680      248       2025         239   DFN-IP service G-WiN
 3246      229        487         219   Song Networks
 8708      223        275         207   Romania Data Systems S.A.
 6746      218         85         188   Dynamic Network Technologies,
 1257      195        712         173   SWIPnet Swedish IP Network
 3269      185       1925          70   TELECOM ITALIA
 5515      180        840         127   Sonera Solution Autonomous Sy
  786      174       1795         174   The JANET IP Service
 8866      172         37          13   Bulgarian Telecommunication C
24863      168         38           9   LINKdotNET AS number
 3215      167       1366          81   France Telecom Transpac
 5400      166        328         136   BT Ignite European Backbone
 3300      164        170          93   AUCS Communications Services 
 6830      159        669          33   UPC Distribution Services
12479      157        322           5   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      561       1048         215   UniNet S.A. de C.V. 
22047      379        141          44   VTR PUNTO NET S.A. 
11172      302        110          77   Servicios Alestra S.A de C.V 
16814      297         18           7   NSS, S.A. 
13999      189         51          18   Mega Cable S.A. de C.V. 
14117      181         11           6   Telefonica del Sur S.A. 
 6147      154        126          22   Telefonica Del Peru 
 7303      154         73          18   Telecom Argentina Stet-France
11556      130         64           3   Cable-Wireless Panama 
19169      123          8          30   Telconet 
10481      121         48           8   Prima S.A. 
 6503      115        148          76   AVANTEL, S.A. 
21826      113         14          19   INTERCABLE 
 5639      112         12           9   Telecommunications Services o
 6505      108         88          80   Global One Communicaoes Ltda 
18822       99          8          10   TELEFONICA MANQUEHUE 
 7315       96          6           3   Grupo Rey Moreno 
11311       94          8          23   Sinectis S.A. 
14522       94         12           8   SatNet S.A. 
19429       94         51          50   E.T.B. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      277        819         233   The Internet Solution 
 8452      151         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       73         34           6   RAYA Telecom - Egypt
 6713       68         71          10   Itissalat Al-MAGHRIB
20928       60         16           2   Noor Advanced Technologies AS
 5713       38        166          34   Telkom SA Ltd 
33774       36          9          27   AS Number for Telecom Algeria
15706       31          8           3   Sudatel Internet Exchange Aut
12455       28          6           5   Jambonet Autonomous system
23889       25          7          10   MAURITIUS TELECOM
 8524       23          1           4   AUCEGYPT Autonomous System
16637       23         10          21   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
21280       21          4           4   Swift Global Kenya Ltd.Is an 
 8346       20         14          19   SONATEL-AS Autonomous System
12258       17          3          11   Vodacom Internet Company 

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

  ASN   No of nets  Net Savings Description
 4323      1208         972      Time Warner Telecom
18566       896         888      Covad Communications 
 9583       848         833      Sify Limited
 4134       982         778      CHINANET-BACKBONE
 4755       793         730      Videsh Sanchar Nigam Ltd. Aut
  721      1026         718      DLA Systems Automation Center
11492       632         620      Cable One 
22773       611         578      Cox Communications, Inc.
 6197       984         509      BellSouth Network Solutions, 
19916       563         509      OLM LLC 
  855       559         500      Canadian Research Network 
 5668       520         496      CenturyTel Internet Holdings,
19262       604         458      Verizon Global Networks 
 7545       515         446      TPG Internet Pty Ltd
 9498       512         443      BHARTI BT INTERNET LTD.
17488       435         426      Hathway IP Over Cable Interne
 7757       442         423      AT&T Broadband 
 4766       720         416      Korea Telecom (KIX)
 3602       522         416      Sprint Canada, Inc. 
  812       438         410      Rogers WAVE 

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

Bad AS  Designation  Network              Transit AS  Description
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      
/13:198     /14:351     /15:684     /16:8667    /17:2982    /18:4983    
/19:11227   /20:12403   /21:10785   /22:13810   /23:14993   /24:97838   
/25:314     /26:260     /27:203     /28:62      /29:26      /30:55      
/31:3       /32:39      

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

  ASN   No of nets  Total ann.   Description
18566      879           896      Covad Communications 
 6197      783           984      BellSouth Network Solutions, 
 7018      746          1472      AT&T WorldNet Services
 9583      667           848      Sify Limited
11492      623           632      Cable One 
 2386      617           883      AT&T Data Communications Serv
 4323      582          1208      Time Warner Telecom
19916      557           563      OLM LLC 
 4766      520           720      Korea Telecom (KIX)
 6198      500           635      BellSouth Network Solutions, 
  855      445           559      Canadian Research Network 
 7757      424           442      AT&T Broadband 
 5668      408           520      CenturyTel Internet Holdings,
 7011      406           472      Citizens Utilities 
  702      374           587      UUNET - Commercial IP service
 1239      367           848      Sprint 
 6517      344           372      Yipes Communications, Inc. 
15270      338           366      PaeTec.net -a division of Pae
22773      318           611      Cox Communications, Inc.
  812      317           438      Rogers WAVE 

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

   4:3         8:44       12:1638     13:1        15:11       16:3      
  17:3        18:4        20:42       24:861      25:1        30:2      
  32:66       38:191      40:54       44:3        47:3        52:4      
  55:1        56:3        57:34       58:115      59:163      60:183    
  61:812      62:745      63:1893     64:2940     65:2230     66:3090   
  67:588      68:665      69:1425     70:300      71:53       72:612    
  73:23       80:741      81:599      82:507      83:357      84:343    
  85:425      86:283      87:153      88:17       89:7       124:8      
 125:188     128:160     129:174     130:103     131:311     132:34     
 133:7       134:152     135:46      136:169     137:61      138:183    
 139:89      140:380     141:133     142:414     143:144     144:225    
 145:39      146:307     147:134     148:323     149:185     150:114    
 151:72      152:61      153:104     154:6       155:186     156:90     
 157:120     158:156     159:180     160:88      161:68      162:258    
 163:177     164:170     165:181     166:146     167:236     168:476    
 169:139     170:316     171:12      190:30      192:5760    193:3356   
 194:2469    195:1745    196:738     198:3886    199:3265    200:4209   
 201:566     202:6451    203:6757    204:3887    205:2099    206:2438   
 207:2925    208:2019    209:3490    210:1864    211:790     212:1279   
 213:1429    214:320     215:40      216:3826    217:1155    218:235    
 219:133     220:638     221:336     222:137    

End of report


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