[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Apr 14 21:02:29 EAT 2006


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 15 Apr, 2006

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

BGP routing table entries examined:                              186541
    Prefixes after maximum aggregation:                          103090
    Unique aggregates announced to Internet:                      91365
Total ASes present in the Internet Routing Table:                 21944
Origin-only ASes present in the Internet Routing Table:           19073
Origin ASes announcing only one prefix:                            9095
Transit ASes present in the Internet Routing Table:                2871
Transit-only ASes present in the Internet Routing Table:             71
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      21
Prefixes from unregistered ASNs in the Routing Table:                15
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             10
Number of addresses announced to Internet:                   1505238112
    Equivalent to 89 /8s, 184 /16s and 28 /24s
    Percentage of available address space announced:               40.6
    Percentage of allocated address space announced:               59.9
    Percentage of available address space allocated:               67.8
Total number of prefixes smaller than registry allocations:       91896

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

Prefixes being announced by APNIC Region ASes:                    39143
    Total APNIC prefixes after maximum aggregation:               16403
Prefixes being announced from the APNIC address blocks:           36860
    Unique aggregates announced from the APNIC address blocks:    18121
APNIC Region origin ASes present in the Internet Routing Table:    2539
APNIC Region origin ASes announcing only one prefix:                721
APNIC Region transit ASes present in the Internet Routing Table:    388
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         16
Number of APNIC addresses announced to Internet:              221865952
    Equivalent to 13 /8s, 57 /16s and 103 /24s
    Percentage of available APNIC address space announced:         69.4

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:                     97218
    Total ARIN prefixes after maximum aggregation:                57434
Prefixes being announced from the ARIN address blocks:            76326
    Unique aggregates announced from the ARIN address blocks:     29402
ARIN Region origin ASes present in the Internet Routing Table:    10637
ARIN Region origin ASes announcing only one prefix:                3988
ARIN Region transit ASes present in the Internet Routing Table:     986
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          19
Number of ARIN addresses announced to Internet:               294309632
    Equivalent to 17 /8s, 138 /16s and 207 /24s
    Percentage of available ARIN address space announced:          73.1

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:                     37181
    Total RIPE prefixes after maximum aggregation:                24774
Prefixes being announced from the RIPE address blocks:            34151
    Unique aggregates announced from the RIPE address blocks:     23113
RIPE Region origin ASes present in the Internet Routing Table:     7876
RIPE Region origin ASes announcing only one prefix:                4121
RIPE Region transit ASes present in the Internet Routing Table:    1303
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               246193024
    Equivalent to 14 /8s, 172 /16s and 155 /24s
    Percentage of available RIPE address space announced:          73.4

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:                   10934
    Total LACNIC prefixes after maximum aggregation:               3587
Prefixes being announced from the LACNIC address blocks:           9091
    Unique aggregates announced from the LACNIC address blocks:    5377
LACNIC Region origin ASes present in the Internet Routing Table:    675
LACNIC Region origin ASes announcing only one prefix:               219
LACNIC Region transit ASes present in the Internet Routing Table:   128
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        20
Number of LACNIC addresses announced to Internet:              26366464
    Equivalent to 1 /8s, 146 /16s and 82 /24s
    Percentage of available LACNIC address space announced:        39.3

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:                   2051
    Total AfriNIC prefixes after maximum aggregation:               892
Prefixes being announced from the AfriNIC address blocks:          1447
    Unique aggregates announced from the AfriNIC address blocks:    944
AfriNIC Region origin ASes present in the Internet Routing Table:   150
AfriNIC Region origin ASes announcing only one prefix:               46
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:                       14
Number of AfriNIC addresses announced to Internet:              4034304
    Equivalent to 0 /8s, 61 /16s and 143 /24s
    Percentage of available AfriNIC address space announced:       12.0

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     1001       6931         210   CHINANET-BACKBONE
 4755      898        259          71   Videsh Sanchar Nigam Ltd. Aut
 9583      869        109          16   Sify Limited
 4766      682       3924         303   Korea Telecom (KIX)
 1221      621       1557         475   Telstra Pty Ltd
 9498      570        212          72   BHARTI BT INTERNET LTD.
 7545      528        108          70   TPG Internet Pty Ltd
17488      501         31           7   Hathway IP Over Cable Interne
17676      484       6997         107   Softbank BB Corp.
 9443      451        111          82   Primus Telecommunications
 4802      382         81         176   Wantree Development
18101      337         69          25   Reliance Infocom Ltd Internet
 2907      333       1732         309   SINET Japan
17849      331         21         111   Telecommunications Technology
 9929      322        220          56   China Netcom Corp.
17557      315         27         157   Pakistan Telecom
17974      304        118          25   PT TELEKOMUNIKASI INDONESIA
 7474      297        210         228   SingTel Optus Pty Ltd
 9800      270        410          67   CHINA UNICOM
 4837      267       2890         108   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1508       6256         972   AT&T WorldNet Services
 4323     1259        732         252   Time Warner Telecom
  721     1013      21961         306   DLA Systems Automation Center
 6197     1009        619         471   BellSouth Network Solutions, 
  174      958       5783         906   Cogent Communications
  701      937       8047         778   UUNET Technologies, Inc. 
18566      931        272           8   Covad Communications 
 2386      875        537         667   AT&T Data Communications Serv
19029      868        151         111   New Edge Networks 
 1239      851       2804         604   Sprint 
  209      712       3614         557   Qwest 
20115      675        592         363   Charter Communications 
19262      672       1984         158   Verizon Global Networks 
22773      645       1488          42   Cox Communications, Inc.
 7011      630        217         411   Citizens Utilities 
11492      627         86          20   Cable One 
 6198      591        534         236   BellSouth Network Solutions, 
  852      586       1089         388   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      560        244          64   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      579       1951         453   UUNET - Commercial IP service
 3352      309       1596          32   Ibernet, Internet Access Netw
 3301      308       1071         292   TeliaNet Sweden
 8220      293        474         271   COLT Telecommunications
 3320      284       3988         235   Deutsche Telekom AG
  680      245       2025         242   DFN-IP service G-WiN
 3246      231        504         221   Song Networks
 6746      227         89         201   Dynamic Network Technologies,
 8708      217        275         200   Romania Data Systems S.A.
24863      207         40           9   LINKdotNET AS number
 8551      202        198          24   Bezeq International
 1257      198        711         173   SWIPnet Swedish IP Network
 3269      195       2070          74   TELECOM ITALIA
 3215      192       1614          90   France Telecom Transpac
 8866      175         37          15   Bulgarian Telecommunication C
  786      171       1778         171   The JANET IP Service
 5400      171        363         140   BT Ignite European Backbone
 6830      167        765          35   UPC Distribution Services
30890      162         15          61   SC Kappa Invexim SRL
 3300      160        172          90   AUCS Communications Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      699       1067         228   UniNet S.A. de C.V. 
22047      383        142          10   VTR PUNTO NET S.A. 
11172      321        110          84   Servicios Alestra S.A de C.V 
16814      308         20           8   NSS, S.A. 
14117      189         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      159         75          20   Telecom Argentina Stet-France
 6147      154        126          22   Telefonica Del Peru 
11556      132         80           4   Cable-Wireless Panama 
21826      130         16          21   INTERCABLE 
 5639      129         12           9   Telecommunications Services o
19169      124          8          30   Telconet 
 6503      121        149          74   AVANTEL, S.A. 
14259      114         10          12   GTD Internet S.A. 
18822      114          8          10   TELEFONICA MANQUEHUE 
 6505      106         88          78   Global One Communicaoes Ltda 
 7910      106          7          10   ANDINET ON LINE 
23216      100         21           8   RAMtelecom Telecomunicaciones
 7315       96          6           3   Grupo Rey Moreno 
25620       96          6           3   COTAS LTDA 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      277        803         232   The Internet Solution 
 8452      169         60           7   TEDATA
 6713      145        135          11   Itissalat Al-MAGHRIB
 2018      123        314         104   Tertiary Education Network 
 5536      121          8          18   Internet Egypt Network
24835      117         50           7   RAYA Telecom - Egypt
15475       88         84           4   Nile Online
 2905       74        155          67   The Internetworking Company o
20928       58         16           2   Noor Advanced Technologies AS
 5713       39        294          35   Telkom SA Ltd 
12455       33          6           3   Jambonet Autonomous system
15706       31          8           3   Sudatel Internet Exchange Aut
33774       29          7          20   AS Number for Telecom Algeria
23889       26          8          11   MAURITIUS TELECOM
 8524       24          1           4   AUCEGYPT Autonomous System
16637       24         14          22   Johnnic e-Ventures 
10798       22          1          13   Standard Bank of South Africa
 8346       20         13          17   SONATEL-AS Autonomous System
 2561       19          6           2   Egyptian Universities Network
21280       19          5           5   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
 4323      1259        1007      Time Warner Telecom
18566       931         923      Covad Communications 
 9583       869         853      Sify Limited
 4755       898         827      Videsh Sanchar Nigam Ltd. Aut
 4134      1001         791      CHINANET-BACKBONE
19029       868         757      New Edge Networks 
  721      1013         707      DLA Systems Automation Center
11492       627         607      Cable One 
22773       645         603      Cox Communications, Inc.
 6197      1009         538      BellSouth Network Solutions, 
19262       672         514      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       535         505      CenturyTel Internet Holdings,
 9498       570         498      BHARTI BT INTERNET LTD.
  855       560         496      Canadian Research Network 
17488       501         494      Hathway IP Over Cable Interne
 8151       699         471      UniNet S.A. de C.V. 
 7545       528         458      TPG Internet Pty Ltd
 7757       477         458      AT&T Broadband 
 3602       539         430      Sprint Canada, Inc. 

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

Bad AS  Designation  Network              Transit AS  Description
43144   UNALLOCATED   12.149.157.0/24       7018       AT&T WorldNet Servic
64545   PRIVATE       38.99.133.0/24         174       Cogent Communication
64501   RESERVED      68.142.125.0/24      22822       Limelight Networks, 
38964   UNALLOCATED   85.192.62.0/23       12695       JSC "Digital Network
65005   PRIVATE       159.153.148.0/22     24989       IX Europe Frankfurt 
24408   UNALLOCATED   203.119.26.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.27.0/24       9800       CHINA UNICOM
24408   UNALLOCATED   203.119.28.0/24       9800       CHINA UNICOM
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com
65280   PRIVATE       203.197.161.0/24      4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.14.0/24       4755       Videsh Sanchar Nigam
65280   PRIVATE       203.200.21.0/24       4755       Videsh Sanchar Nigam
38964   UNALLOCATED   213.219.225.0/24     12695       JSC "Digital Network
38964   UNALLOCATED   213.248.22.0/24      12695       JSC "Digital Network
65412   PRIVATE       221.123.128.0/20     24405       Beijing CJWX Communi

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
183.206.196.0/24      2188     FR-RENATER-ASTER
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 
192.84.205.0/24        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        /8:17       /9:9       /10:9       /11:26      /12:88      
/13:200     /14:357     /15:695     /16:8768    /17:3171    /18:5226    
/19:11530   /20:12966   /21:11215   /22:14383   /23:15498   /24:101352  
/25:367     /26:252     /27:217     /28:60      /29:69      /30:33      
/31:0       /32:33      

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

  ASN   No of nets  Total ann.   Description
18566      914           931      Covad Communications 
19029      800           868      New Edge Networks 
 6197      797          1009      BellSouth Network Solutions, 
 7018      797          1508      AT&T WorldNet Services
 9583      698           869      Sify Limited
11492      618           627      Cable One 
 4323      606          1259      Time Warner Telecom
 2386      595           875      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      540           630      Citizens Utilities 
 4766      491           682      Korea Telecom (KIX)
 7757      459           477      AT&T Broadband 
 6198      442           591      BellSouth Network Solutions, 
  855      434           560      Canadian Research Network 
 5668      415           535      CenturyTel Internet Holdings,
 1239      379           851      Sprint 
15270      371           402      PaeTec.net -a division of Pae
  702      360           579      UUNET - Commercial IP service
 6517      352           380      Yipes Communications, Inc. 
 8151      343           699      UniNet S.A. de C.V. 

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

   4:3         8:44       12:1619     13:1        15:12       16:3      
  17:3        18:4        20:43       24:883      25:1        30:2      
  32:66       38:212      40:54       44:3        47:6        52:4      
  55:1        56:3        57:33       58:147      59:195      60:181    
  61:838      62:785      63:1911     64:3116     65:2236     66:3074   
  67:628      68:685      69:1478     70:329      71:76       72:684    
  73:23       74:29       80:774      81:612      82:575      83:379    
  84:377      85:518      86:344      87:309      88:66       89:135    
 124:218     125:367     128:158     129:176     130:106     131:317    
 132:31      133:8       134:150     135:46      136:177     137:70     
 138:199     139:66      140:467     141:134     142:394     143:161    
 144:227     145:42      146:325     147:133     148:326     149:189    
 150:114     151:80      152:64      153:107     154:6       155:197    
 156:96      157:130     158:165     159:169     160:87      161:72     
 162:253     163:146     164:179     165:180     166:166     167:243    
 168:478     169:134     170:327     171:12      172:1       183:1      
 190:95      192:5765    193:3388    194:2577    195:1821    196:843    
 198:3889    199:3257    200:4324    201:827     202:6555    203:6850   
 204:3897    205:2109    206:2419    207:2927    208:2037    209:3798   
 210:1915    211:701     212:1250    213:1459    214:340     215:41     
 216:4119    217:1169    218:251     219:179     220:653     221:355    
 222:144    

End of report



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