Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 23 18:02:08 UTC 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 24 Jun, 2006

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

BGP routing table entries examined:                              191664
    Prefixes after maximum aggregation:                          105172
    Unique aggregates announced to Internet:                      92904
Total ASes present in the Internet Routing Table:                 22516
Origin-only ASes present in the Internet Routing Table:           19587
Origin ASes announcing only one prefix:                            9392
Transit ASes present in the Internet Routing Table:                2929
Transit-only ASes present in the Internet Routing Table:             63
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      24
    Max AS path prepend of ASN (32609)                               16
Prefixes from unregistered ASNs in the Routing Table:                 2
    Unregistered ASNs in the Routing Table:                           3
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              9
Number of addresses announced to Internet:                   1543273736
    Equivalent to 91 /8s, 252 /16s and 125 /24s
    Percentage of available address space announced:               41.6
    Percentage of allocated address space announced:               60.2
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       95120

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

Prefixes being announced by APNIC Region ASes:                    40985
    Total APNIC prefixes after maximum aggregation:               16907
Prefixes being announced from the APNIC address blocks:           38706
    Unique aggregates announced from the APNIC address blocks:    18500
APNIC Region origin ASes present in the Internet Routing Table:    2620
APNIC Region origin ASes announcing only one prefix:                752
APNIC Region transit ASes present in the Internet Routing Table:    397
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         18
Number of APNIC addresses announced to Internet:              234437216
    Equivalent to 13 /8s, 249 /16s and 58 /24s
    Percentage of available APNIC address space announced:         73.3

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:                     98398
    Total ARIN prefixes after maximum aggregation:                58065
Prefixes being announced from the ARIN address blocks:            72194
    Unique aggregates announced from the ARIN address blocks:     26957
ARIN Region origin ASes present in the Internet Routing Table:    10799
ARIN Region origin ASes announcing only one prefix:                4077
ARIN Region transit ASes present in the Internet Routing Table:     989
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               294470400
    Equivalent to 17 /8s, 141 /16s and 67 /24s
    Percentage of available ARIN address space announced:          76.3

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, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     38249
    Total RIPE prefixes after maximum aggregation:                25557
Prefixes being announced from the RIPE address blocks:            35302
    Unique aggregates announced from the RIPE address blocks:     23164
RIPE Region origin ASes present in the Internet Routing Table:     8177
RIPE Region origin ASes announcing only one prefix:                4288
RIPE Region transit ASes present in the Internet Routing Table:    1359
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE addresses announced to Internet:               261011076
    Equivalent to 15 /8s, 142 /16s and 182 /24s
    Percentage of available RIPE address space announced:          81.9

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
                       40960-41983
RIPE Address Blocks    62/8, 80/5, 88/6, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   11770
    Total LACNIC prefixes after maximum aggregation:               3743
Prefixes being announced from the LACNIC address blocks:           9891
    Unique aggregates announced from the LACNIC address blocks:    5550
LACNIC Region origin ASes present in the Internet Routing Table:    699
LACNIC Region origin ASes announcing only one prefix:               231
LACNIC Region transit ASes present in the Internet Routing Table:   130
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        24
Number of LACNIC addresses announced to Internet:              27735552
    Equivalent to 1 /8s, 167 /16s and 54 /24s
    Percentage of available LACNIC address space announced:        41.3

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:                   2260
    Total AfriNIC prefixes after maximum aggregation:               900
Prefixes being announced from the AfriNIC address blocks:          1514
    Unique aggregates announced from the AfriNIC address blocks:    974
AfriNIC Region origin ASes present in the Internet Routing Table:   158
AfriNIC Region origin ASes announcing only one prefix:               44
AfriNIC Region transit ASes present in the Internet Routing Table:   25
Average AfriNIC Region AS path length visible:                      3.4
    Max AfriNIC Region AS path length visible:                       11
Number of AfriNIC addresses announced to Internet:              4137728
    Equivalent to 0 /8s, 63 /16s and 35 /24s
    Percentage of available AfriNIC address space announced:       12.3

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     1238       7261         228   CHINANET-BACKBONE
 4755      943        258          74   Videsh Sanchar Nigam Ltd. Aut
 9583      909        109          16   Sify Limited
 4766      687       4435         302   Korea Telecom (KIX)
 9498      676        211          67   BHARTI BT INTERNET LTD.
 1221      614       1668         472   Telstra Pty Ltd
 7545      546        124          70   TPG Internet Pty Ltd
17488      519         32          10   Hathway IP Over Cable Interne
17676      489       7077         110   Softbank BB Corp.
 9443      452        111          83   Primus Telecommunications
18101      417         85          24   Reliance Infocom Ltd Internet
17557      398         31         177   Pakistan Telecom
17974      384        129          14   PT TELEKOMUNIKASI INDONESIA
 4802      382         81         169   Wantree Development
 2907      335       1733         311   SINET Japan
 9929      330        255          61   China Netcom Corp.
17849      303         23         103   Telecommunications Technology
 7474      297        211         227   SingTel Optus Pty Ltd
10139      284         19           5   Meridian Telekoms
 4837      277       3085         123   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1486       6264         952   AT&T WorldNet Services
 4323     1319        744         263   Time Warner Telecom
  721     1023      21998         314   DLA Systems Automation Center
 6197     1012        630         475   BellSouth Network Solutions, 
  174      962       5771         899   Cogent Communications
18566      945        272           8   Covad Communications 
19029      943        151         106   New Edge Networks 
  701      940       6753         778   UUNET Technologies, Inc. 
 2386      914        560         707   AT&T Data Communications Serv
 1239      844       2788         596   Sprint 
19262      714       2134         187   Verizon Global Networks 
20115      713        619         381   Charter Communications 
  209      696       3683         550   Qwest 
22773      668       1741          40   Cox Communications, Inc.
 7011      651        218         414   Citizens Utilities 
11492      635         87          23   Cable One 
  852      583       1084         382   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      553        244          64   Canadian Research Network 
 3602      526        125         104   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      569       1951         448   UUNET - Commercial IP service
 3301      312       1327         297   TeliaNet Sweden
 3352      304       1643          30   Ibernet, Internet Access Netw
 3320      286       3989         240   Deutsche Telekom AG
 8220      275        470         263   COLT Telecommunications
  680      246       2041         243   DFN-IP service G-WiN
 6746      238         90         213   Dynamic Network Technologies,
 3246      229        462         219   Song Networks
 8708      217        276         203   Romania Data Systems S.A.
24863      215         42          10   LINKdotNET AS number
 3215      201       1720          96   France Telecom Transpac
 3269      201       2182          72   TELECOM ITALIA
 8551      201        198          24   Bezeq International
30890      198         18          75   SC Kappa Invexim SRL
 1257      193        741         165   SWIPnet Swedish IP Network
 8866      187         37          15   Bulgarian Telecommunication C
 6830      175        813          37   UPC Distribution Services
  786      169       1778         169   The JANET IP Service
 9121      169        931          28   TTnet Autonomous System
 3300      168        171          98   AUCS Communications Services 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      704       1099         221   UniNet S.A. de C.V. 
22047      418        174          11   VTR PUNTO NET S.A. 
11172      350        110          84   Servicios Alestra S.A de C.V 
16814      329         20           8   NSS, S.A. 
 6147      267        134          22   Telefonica Del Peru 
11664      226         26          13   Keytech SA 
14117      207         13           7   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      176         82          24   Telecom Argentina Stet-France
 6503      173        151          84   AVANTEL, S.A. 
21826      133         17          23   INTERCABLE 
11556      132         80           4   Cable-Wireless Panama 
19169      128          8          24   Telconet 
14259      119         10          15   GTD Internet S.A. 
19429      118         64          41   E.T.B. 
14522      116         18           9   SatNet S.A. 
23216      114         21           9   RAMtelecom Telecomunicaciones
 6505      109         88          79   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
 7738      104        410          20   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      286        803         234   The Internet Solution 
 8452      165         60           7   TEDATA
 6713      154        135          11   Itissalat Al-MAGHRIB
 2018      131        314         105   Tertiary Education Network 
 5536      124          8          15   Internet Egypt Network
24835      116         48           6   RAYA Telecom - Egypt
15475      111         84           4   Nile Online
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
20928       59         16           2   Noor Advanced Technologies AS
15706       44          8           3   Sudatel Internet Exchange Aut
 5713       39        294          35   Telkom SA Ltd 
33774       31          7          21   AS Number for Telecom Algeria
12455       25          6           3   Jambonet Autonomous system
16637       24         14          22   Johnnic e-Ventures 
 8524       22          1           5   AUCEGYPT Autonomous System
10798       22          1          13   Standard Bank of South Africa
23889       22          8          11   MAURITIUS TELECOM
33766       21          2           1   Nyala Communications Pty Ltd 
21491       20         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4323      1319        1056      Time Warner Telecom
 4134      1238        1010      CHINANET-BACKBONE
18566       945         937      Covad Communications 
 9583       909         893      Sify Limited
 4755       943         869      Videsh Sanchar Nigam Ltd. Aut
19029       943         837      New Edge Networks 
  721      1023         709      DLA Systems Automation Center
22773       668         628      Cox Communications, Inc.
11492       635         612      Cable One 
 9498       676         609      BHARTI BT INTERNET LTD.
 6197      1012         537      BellSouth Network Solutions, 
19262       714         527      Verizon Global Networks 
19916       563         509      OLM LLC 
17488       519         509      Hathway IP Over Cable Interne
 5668       525         502      CenturyTel Internet Holdings,
  855       553         489      Canadian Research Network 
 8151       704         483      UniNet S.A. de C.V. 
 7545       546         476      TPG Internet Pty Ltd
 3602       526         422      Sprint Canada, Inc. 
22047       418         407      VTR PUNTO NET S.A. 

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

Bad AS  Designation  Network              Transit AS  Description
65128   PRIVATE       193.110.50.0/24      24652       Juniper Networks, Eu
24409   UNALLOCATED   203.119.29.0/24       9808       Guangdong Mobile Com

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
192.172.0.0/19         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       /10:10      /11:28      /12:93      
/13:201     /14:363     /15:712     /16:8871    /17:3260    /18:5390    
/19:11769   /20:13322   /21:11654   /22:14862   /23:15982   /24:104035  
/25:385     /26:289     /27:182     /28:65      /29:73      /30:51      
/31:0       /32:40      

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

  ASN   No of nets  Total ann.   Description
18566      928           945      Covad Communications 
19029      876           943      New Edge Networks 
 6197      794          1012      BellSouth Network Solutions, 
 7018      787          1486      AT&T WorldNet Services
 9583      739           909      Sify Limited
 4323      643          1319      Time Warner Telecom
 2386      633           914      AT&T Data Communications Serv
11492      626           635      Cable One 
 7011      560           651      Citizens Utilities 
19916      557           563      OLM LLC 
 4766      499           687      Korea Telecom (KIX)
  855      427           553      Canadian Research Network 
 5668      408           525      CenturyTel Internet Holdings,
15270      407           438      PaeTec.net -a division of Pae
 1239      392           844      Sprint 
 9498      379           676      BHARTI BT INTERNET LTD.
 4755      373           943      Videsh Sanchar Nigam Ltd. Aut
 6517      364           395      Yipes Communications, Inc. 
  702      353           569      UUNET - Commercial IP service
 6198      353           510      BellSouth Network Solutions, 

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

   4:9         8:42       12:1614     13:1        15:16       16:3      
  17:3        18:4        20:41       24:762      25:1        32:58     
  38:234      40:54       41:3        44:3        47:6        52:4      
  55:1        56:3        57:26       58:178      59:236      60:175    
  61:860      62:814      63:1895     64:3197     65:2199     66:3131   
  67:619      68:684      69:1523     70:398      71:82       72:776    
  74:45       75:1        80:768      81:646      82:626      83:381    
  84:376      85:563      86:383      87:367      88:109      89:296    
 121:1       122:2       123:1       124:290     125:525     128:152    
 129:189     130:118     131:317     132:33      133:8       134:159    
 135:48      136:178     137:82      138:206     139:55      140:522    
 141:134     142:380     143:165     144:223     145:39      146:319    
 147:137     148:340     149:188     150:114     151:94      152:69     
 153:106     154:5       155:204     156:183     157:146     158:168    
 159:171     160:91      161:77      162:244     163:159     164:182    
 165:211     166:172     167:247     168:492     169:128     170:352    
 171:14      183:1       190:96      192:5734    193:3357    194:2645   
 195:1931    196:851     198:3964    199:3228    200:4624    201:1004   
 202:6690    203:7039    204:3910    205:2033    206:2425    207:2914   
 208:2161    209:3753    210:1994    211:696     212:1257    213:1478   
 214:362     215:41      216:4228    217:1159    218:295     219:232    
 220:718     221:370     222:189    

End of report



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