[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 9 18:13:42 UTC 2007


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

For historical data, please see http://thyme.apnic.net.

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

Routing Table Report   04:00 +10GMT Sat 10 Nov, 2007

Report Website:     http://thyme.apnic.net
Detailed Analysis:  http://thyme.apnic.net/current/

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

BGP routing table entries examined:                              237341
    Prefixes after maximum aggregation:                          122449
    Deaggregation factor:                                          1.94
    Unique aggregates announced to Internet:                     115597
Total ASes present in the Internet Routing Table:                 26637
    Prefixes per ASN:                                              8.91
Origin-only ASes present in the Internet Routing Table:           23181
Origin ASes announcing only one prefix:                           11299
Transit ASes present in the Internet Routing Table:                3456
Transit-only ASes present in the Internet Routing Table:             82
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      28
    Max AS path prepend of ASN (35389)                               25
Prefixes from unregistered ASNs in the Routing Table:                13
    Unregistered ASNs in the Routing Table:                           7
Prefixes from 32-bit ASNs in the Routing Table:                       8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1789588096
    Equivalent to 106 /8s, 170 /16s and 242 /24s
    Percentage of available address space announced:               48.3
    Percentage of allocated address space announced:               61.8
    Percentage of available address space allocated:               78.2
Total number of prefixes smaller than registry allocations:      110282

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

Prefixes being announced by APNIC Region ASes:                    55382
    Total APNIC prefixes after maximum aggregation:               21135
    APNIC Deaggregation factor:                                    2.62
Prefixes being announced from the APNIC address blocks:           52274
    Unique aggregates announced from the APNIC address blocks:    23121
APNIC Region origin ASes present in the Internet Routing Table:    3082
    APNIC Prefixes per ASN:                                       16.96
APNIC Region origin ASes announcing only one prefix:                808
APNIC Region transit ASes present in the Internet Routing Table:    473
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              323915200
    Equivalent to 19 /8s, 78 /16s and 141 /24s
    Percentage of available APNIC address space announced:         74.1

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, 114/7, 116/6, 120/6, 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:                    111414
    Total ARIN prefixes after maximum aggregation:                63761
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:            82332
    Unique aggregates announced from the ARIN address blocks:     32690
ARIN Region origin ASes present in the Internet Routing Table:    11930
    ARIN Prefixes per ASN:                                         6.90
ARIN Region origin ASes announcing only one prefix:                4591
ARIN Region transit ASes present in the Internet Routing Table:    1118
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          14
Number of ARIN addresses announced to Internet:               352392704
    Equivalent to 21 /8s, 1 /16s and 22 /24s
    Percentage of available ARIN address space announced:          77.8

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, 39936-40959
ARIN Address Blocks    24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     49571
    Total RIPE prefixes after maximum aggregation:                31892
    RIPE Deaggregation factor:                                     1.55
Prefixes being announced from the RIPE address blocks:            46437
    Unique aggregates announced from the RIPE address blocks:     30624
RIPE Region origin ASes present in the Internet Routing Table:    10456
    RIPE Prefixes per ASN:                                         4.44
RIPE Region origin ASes announcing only one prefix:                5544
RIPE Region transit ASes present in the Internet Routing Table:    1646
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE addresses announced to Internet:               335900672
    Equivalent to 20 /8s, 5 /16s and 112 /24s
    Percentage of available RIPE address space announced:          77.0

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
                       40960-45055
RIPE Address Blocks    62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   17770
    Total LACNIC prefixes after maximum aggregation:               4565
    LACNIC Deaggregation factor:                                   3.89
Prefixes being announced from the LACNIC address blocks:          15670
    Unique aggregates announced from the LACNIC address blocks:    8680
LACNIC Region origin ASes present in the Internet Routing Table:    871
    LACNIC Prefixes per ASN:                                      17.99
LACNIC Region origin ASes announcing only one prefix:               284
LACNIC Region transit ASes present in the Internet Routing Table:   149
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              45985792
    Equivalent to 2 /8s, 189 /16s and 176 /24s
    Percentage of available LACNIC address space announced:        45.7

LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks  186/7, 189/8, 190/8, 200/7

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

Prefixes being announced by AfriNIC Region ASes:                   3182
    Total AfriNIC prefixes after maximum aggregation:              1080
    AfriNIC Deaggregation factor:                                  2.95
Prefixes being announced from the AfriNIC address blocks:          2375
    Unique aggregates announced from the AfriNIC address blocks:   1398
AfriNIC Region origin ASes present in the Internet Routing Table:   215
    AfriNIC Prefixes per ASN:                                     11.05
AfriNIC Region origin ASes announcing only one prefix:               72
AfriNIC Region transit ASes present in the Internet Routing Table:   39
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              7636224
    Equivalent to 0 /8s, 116 /16s and 133 /24s
    Percentage of available AfriNIC address space announced:       22.8

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
 4755     1482        383          70   Videsh Sanchar Nigam Ltd. Aut
 9583     1101         81         419   Sify Limited
 4134     1100      11563         301   CHINANET-BACKBONE
 9498     1046        549          64   BHARTI BT INTERNET LTD.
17488      879         57          70   Hathway IP Over Cable Interne
 4766      815       5474         328   Korea Telecom (KIX)
23577      776         34         681   Korea Telecom (ATM-MPLS)
 7545      721        159         123   TPG Internet Pty Ltd
18101      608        119          52   Reliance Infocom Ltd Internet
 1221      543       1951         423   Telstra Pty Ltd
 9829      530       1312           9   BSNL National Internet Backbo
 4812      524        866          77   China Telecom (Shanghai)
 4668      521         68          10   LG-EDS Systems Inc.
17676      504      10919          64   Softbank BB Corp.
 4808      499        797         121   CNCGROUP IP network: China169
 4802      481        130         141   Wantree Development
 9443      440        121          70   Primus Telecommunications
 7474      383        202         269   SingTel Optus Pty Ltd
17974      383        146          14   PT TELEKOMUNIKASI INDONESIA
 4837      356       5050         168   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1498       6146        1005   AT&T WorldNet Services
 4323     1362       1014         358   Time Warner Telecom
 2386     1259        630         769   AT&T Data Communications Serv
11492     1164        120          48   Cable One 
 6478     1121        329         184   AT&T Worldnet Services 
18566     1030        288           9   Covad Communications 
 6197     1029        718         508   BellSouth Network Solutions, 
  174      981       6882         846   Cogent Communications
 7011      981        290         564   Citizens Utilities 
  701      902       6569         706   UUNET Technologies, Inc. 
20115      851        773         461   Charter Communications 
 3356      827      10887         411   Level 3 Communications, LLC 
22773      806       2133          54   Cox Communications, Inc.
19262      802       2893         184   Verizon Global Networks 
 1239      801       2713         557   Sprint 
  209      729       3784         573   Qwest 
 5668      664        176          17   CenturyTel Internet Holdings,
15270      598        161          41   PaeTec.net -a division of Pae
 3561      592       2324         374   Savvis
 6517      585        163          33   Yipes Communications, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      470       1917         383   UUNET - Commercial IP service
 9116      335        168          28   Goldenlines main autonomous s
 3301      316       1441         293   TeliaNet Sweden
 3320      316       6035         262   Deutsche Telekom AG
 8551      311        298          41   Bezeq International
 6746      276        130         254   Dynamic Network Technologies,
 8708      274        421         245   Romania Data Systems S.A.
 8866      271         62          25   Bulgarian Telecommunication C
  680      268       2045         254   DFN-IP service G-WiN
 3215      263       2503          98   France Telecom Transpac
 8220      255        444         237   COLT Telecommunications
 8452      249        188           7   TEDATA
 3352      235       1932          41   Ibernet, Internet Access Netw
 3269      229       2967          71   TELECOM ITALIA
 9121      212       1442          25   TTnet Autonomous System
 3300      198        171          93   AUCS Communications Services 
12479      195        578           6   Uni2 Autonomous System
 1257      194       1195         177   SWIPnet Swedish IP Network
 3292      193       1380         177   TDC Tele Danmark
 3246      185        256         175   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1162       2419         216   UniNet S.A. de C.V. 
11830      539        299           9   Instituto Costarricense de El
16814      427         27          10   NSS, S.A. 
14522      381         33           8   SatNet S.A. 
11172      376        114          60   Servicios Alestra S.A de C.V 
 7303      373        180          56   Telecom Argentina Stet-France
 6471      353         77          37   ENTEL CHILE S.A. 
22047      317        246          13   VTR PUNTO NET S.A. 
10481      301        120          10   Prima S.A. 
14117      285         19          15   Telefonica del Sur S.A. 
10620      253         70          44   TVCABLE BOGOTA 
 6147      242        182          20   Telefonica Del Peru 
11556      236        128           4   Cable-Wireless Panama 
23216      218         17          46   RAMtelecom Telecomunicaciones
 6503      216        187          85   AVANTEL, S.A. 
28573      214        314          27   NET Servicos de Comunicao S.A
 7738      206        538          24   Telecomunicacoes da Bahia S.A
20299      187         33          30   NEWCOM AMERICAS 
21826      186         33          47   INTERCABLE 
19169      182         12          19   Telconet 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863      380         60          40   LINKdotNET AS number
 3741      281        869         226   The Internet Solution 
20858      195         34           3   EgyNet
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      140        299         115   Tertiary Education Network 
 5536      124          8          10   Internet Egypt Network
33776      100          6           3   Starcomms Nigeria Limited
24835       88         48           6   RAYA Telecom - Egypt
15475       81         84           4   Nile Online
 2905       75        174          72   The Internetworking Company o
23889       75         24          15   MAURITIUS TELECOM
33783       68          8          14   EEPAD TISP TELECOM & INTERNET
20484       63          5           5   Yalla Online Autonomous Syste
16637       62         21          29   Johnnic e-Ventures 
15706       57         12           4   Sudatel Internet Exchange Aut
29571       56         11           7   Ci Telecom Autonomous system 
33774       47         32          27   AS Number for Telecom Algeria
 5713       45        294          35   Telkom SA Ltd 
12455       36          6           3   Jambonet Autonomous system
 8524       32          2          10   AUCEGYPT Autonomous System

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

  ASN   No of nets  Net Savings Description
 4755      1482        1412      Videsh Sanchar Nigam Ltd. Aut
11492      1164        1116      Cable One 
18566      1030        1021      Covad Communications 
 4323      1362        1004      Time Warner Telecom
 9498      1046         982      BHARTI BT INTERNET LTD.
 8151      1162         946      UniNet S.A. de C.V. 
 6478      1121         937      AT&T Worldnet Services 
17488       879         809      Hathway IP Over Cable Interne
 4134      1100         799      CHINANET-BACKBONE
22773       806         752      Cox Communications, Inc.
 9583      1101         682      Sify Limited
 5668       664         647      CenturyTel Internet Holdings,
19262       802         618      Verizon Global Networks 
 7545       721         598      TPG Internet Pty Ltd
15270       598         557      PaeTec.net -a division of Pae
18101       608         556      Reliance Infocom Ltd Internet
 6517       585         552      Yipes Communications, Inc. 
11830       539         530      Instituto Costarricense de El
19916       569         522      OLM LLC 
 6197      1029         521      BellSouth Network Solutions, 

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

Bad AS  Designation  Network              Transit AS  Description
64999   PRIVATE       78.24.120.0/23        3257       Tiscali Intl Network
64999   PRIVATE       78.24.122.0/23        3257       Tiscali Intl Network
64999   PRIVATE       78.24.124.0/24        3257       Tiscali Intl Network
64999   PRIVATE       78.24.125.0/24        3257       Tiscali Intl Network
64999   PRIVATE       78.24.126.0/24        3257       Tiscali Intl Network
64999   PRIVATE       78.24.127.0/24        3257       Tiscali Intl Network
65068   PRIVATE       79.171.184.0/21      43895       *
64718   PRIVATE       81.200.197.0/24      25325       AS of Deutsche Bahn 
64718   PRIVATE       81.200.198.0/23      25325       AS of Deutsche Bahn 
64719   PRIVATE       81.200.204.0/24      25325       AS of Deutsche Bahn 
65300   PRIVATE       216.243.221.0/24     11320       Internet Express, In
65300   PRIVATE       216.243.222.0/24     11320       Internet Express, In
65300   PRIVATE       216.243.223.0/24     11320       Internet Express, In

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
172.14.254.0/24      20312     CNTI-REACCIUN "Centro Naciona
172.15.254.0/24      20312     CNTI-REACCIUN "Centro Naciona
172.33.1.0/24         7018     AT&T WorldNet Services
192.0.10.0/24         9498     BHARTI BT INTERNET LTD.
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 
192.153.136.0/21       721     DLA Systems Automation Center
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       /9:9       /10:16      /11:39      /12:136     
/13:270     /14:483     /15:948     /16:9704    /17:4190    /18:6746    
/19:14663   /20:16756   /21:15647   /22:19842   /23:20840   /24:124539  
/25:807     /26:1018    /27:543     /28:114     /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1155          1164      Cable One 
 6478     1120          1121      AT&T Worldnet Services 
18566     1012          1030      Covad Communications 
 2386      950          1259      AT&T Data Communications Serv
 9583      946          1101      Sify Limited
 7011      868           981      Citizens Utilities 
 4755      850          1482      Videsh Sanchar Nigam Ltd. Aut
 7018      826          1498      AT&T WorldNet Services
 6197      773          1029      BellSouth Network Solutions, 
23577      767           776      Korea Telecom (ATM-MPLS)
 9498      730          1046      BHARTI BT INTERNET LTD.
17488      694           879      Hathway IP Over Cable Interne
 4766      606           815      Korea Telecom (KIX)
 4323      575          1362      Time Warner Telecom
19916      564           569      OLM LLC 
15270      560           598      PaeTec.net -a division of Pae
 6517      541           585      Yipes Communications, Inc. 
 5668      522           664      CenturyTel Internet Holdings,
 4668      511           521      LG-EDS Systems Inc.
18101      509           608      Reliance Infocom Ltd Internet

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

   4:9         8:89       12:1826     15:19       16:3        17:6      
  18:13       20:35       24:993      25:1        32:57       33:3      
  38:360      40:64       41:396      44:2        47:8        52:3      
  55:3        56:3        57:21       58:480      59:414      60:384    
  61:987      62:940      63:1981     64:3304     65:2375     66:3569   
  67:906      68:677      69:2012     70:466      71:106      72:1434   
  73:7        74:750      75:263      76:151      77:416      78:271    
  79:11       80:873      81:787      82:535      83:350      84:617    
  85:827      86:356      87:590      88:281      89:1019     90:38     
  91:729      92:5        96:2        97:6        98:9       116:428    
 117:224     118:43      121:337     122:643     123:208     124:700    
 125:1041    128:309     129:194     130:141     131:369     132:57     
 133:9       134:193     135:34      136:192     137:82      138:152    
 139:76      140:519     141:145     142:372     143:254     144:324    
 145:50      146:326     147:127     148:485     149:184     150:167    
 151:137     152:93      153:121     154:11      155:261     156:164    
 157:222     158:160     159:187     160:132     161:100     162:190    
 163:184     164:498     165:397     166:291     167:308     168:515    
 169:129     170:419     171:24      172:5       189:115     190:1206   
 192:5727    193:4031    194:3203    195:2463    196:924     198:3799   
 199:3227    200:5234    201:1254    202:7474    203:7812    204:3983   
 205:1996    206:2437    207:2785    208:2942    209:3596    210:2501   
 211:1078    212:1306    213:1523    214:419     215:44      216:4093   
 217:1190    218:320     219:396     220:1012    221:407     222:267    


End of report



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