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Weekly Routing Table Report

  • From: Routing Analysis Role Account
  • Date: Fri May 05 14:07:53 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@lists.apnic.net

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

Routing Table Report   04:00 +10GMT Sat 06 May, 2006

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

BGP routing table entries examined:                              187455
    Prefixes after maximum aggregation:                          103616
    Unique aggregates announced to Internet:                      91884
Total ASes present in the Internet Routing Table:                 22087
Origin-only ASes present in the Internet Routing Table:           19218
Origin ASes announcing only one prefix:                            9153
Transit ASes present in the Internet Routing Table:                2869
Transit-only ASes present in the Internet Routing Table:             66
Average AS path length visible in the Internet Routing Table:       3.5
    Max AS path length visible:                                      23
    Max AS path prepend of ASN (34527)                               16
Prefixes from unregistered ASNs in the Routing Table:                28
    Unregistered ASNs in the Routing Table:                           6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             13
Number of addresses announced to Internet:                   1531319456
    Equivalent to 91 /8s, 70 /16s and 20 /24s
    Percentage of available address space announced:               41.3
    Percentage of allocated address space announced:               59.8
    Percentage of available address space allocated:               69.1
Total number of prefixes smaller than registry allocations:       92349

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

Prefixes being announced by APNIC Region ASes:                    39523
    Total APNIC prefixes after maximum aggregation:               16521
Prefixes being announced from the APNIC address blocks:           37242
    Unique aggregates announced from the APNIC address blocks:    18267
APNIC Region origin ASes present in the Internet Routing Table:    2543
APNIC Region origin ASes announcing only one prefix:                715
APNIC Region transit ASes present in the Internet Routing Table:    390
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              225017824
    Equivalent to 13 /8s, 105 /16s and 127 /24s
    Percentage of available APNIC address space announced:         70.4

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:                     97040
    Total ARIN prefixes after maximum aggregation:                57517
Prefixes being announced from the ARIN address blocks:            71278
    Unique aggregates announced from the ARIN address blocks:     26403
ARIN Region origin ASes present in the Internet Routing Table:    10690
ARIN Region origin ASes announcing only one prefix:                4009
ARIN Region transit ASes present in the Internet Routing Table:     986
Average ARIN Region AS path length visible:                         3.3
    Max ARIN Region AS path length visible:                          18
Number of ARIN addresses announced to Internet:               290145792
    Equivalent to 17 /8s, 75 /16s and 70 /24s
    Percentage of available ARIN address space announced:          75.2

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, 64/5, 72/6, 76/8, 199/8, 204/6,
                       208/7 and 216/8

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

Prefixes being announced by RIPE Region ASes:                     37490
    Total RIPE prefixes after maximum aggregation:                25049
Prefixes being announced from the RIPE address blocks:            34506
    Unique aggregates announced from the RIPE address blocks:     23143
RIPE Region origin ASes present in the Internet Routing Table:     7951
RIPE Region origin ASes announcing only one prefix:                4162
RIPE Region transit ASes present in the Internet Routing Table:    1306
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               247766464
    Equivalent to 14 /8s, 196 /16s and 157 /24s
    Percentage of available RIPE address space announced:          77.7

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, 193/8, 194/7, 212/7
                       and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   11278
    Total LACNIC prefixes after maximum aggregation:               3636
Prefixes being announced from the LACNIC address blocks:           9368
    Unique aggregates announced from the LACNIC address blocks:    5436
LACNIC Region origin ASes present in the Internet Routing Table:    683
LACNIC Region origin ASes announcing only one prefix:               221
LACNIC Region transit ASes present in the Internet Routing Table:   129
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC addresses announced to Internet:              26824960
    Equivalent to 1 /8s, 153 /16s and 81 /24s
    Percentage of available LACNIC address space announced:        40.0

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:                   2119
    Total AfriNIC prefixes after maximum aggregation:               893
Prefixes being announced from the AfriNIC address blocks:          1463
    Unique aggregates announced from the AfriNIC address blocks:    953
AfriNIC Region origin ASes present in the Internet Routing Table:   154
AfriNIC Region origin ASes announcing only one prefix:               46
AfriNIC Region transit ASes present in the Internet Routing Table:   27
Average AfriNIC Region AS path length visible:                      3.4
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC addresses announced to Internet:              4066816
    Equivalent to 0 /8s, 62 /16s and 14 /24s
    Percentage of available AfriNIC address space announced:       12.1

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     1129       7088         221   CHINANET-BACKBONE
 4755      913        259          71   Videsh Sanchar Nigam Ltd. Aut
 9583      900        109          16   Sify Limited
 4766      676       4435         303   Korea Telecom (KIX)
 1221      615       1556         471   Telstra Pty Ltd
 9498      566        211          67   BHARTI BT INTERNET LTD.
 7545      530        124          70   TPG Internet Pty Ltd
17488      501         31           7   Hathway IP Over Cable Interne
17676      486       7029         108   Softbank BB Corp.
 9443      450        110          81   Primus Telecommunications
 4802      384         81         175   Wantree Development
17849      347         22         113   Telecommunications Technology
18101      338         85          24   Reliance Infocom Ltd Internet
 2907      336       1749         312   SINET Japan
17557      329         28         158   Pakistan Telecom
 9929      324        221          57   China Netcom Corp.
17974      312        120          29   PT TELEKOMUNIKASI INDONESIA
 7474      299        211         229   SingTel Optus Pty Ltd
 9800      273        410          67   CHINA UNICOM
 9837      265         78         158   Powertel Ltd

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1508       6256         967   AT&T WorldNet Services
 4323     1292        733         253   Time Warner Telecom
 6197     1007        618         472   BellSouth Network Solutions, 
  721     1001      21929         303   DLA Systems Automation Center
  174      961       5787         907   Cogent Communications
19029      951        151         111   New Edge Networks 
18566      937        272           8   Covad Communications 
  701      923       8009         765   UUNET Technologies, Inc. 
 2386      877        522         676   AT&T Data Communications Serv
 1239      848       2805         600   Sprint 
  209      709       3595         555   Qwest 
19262      695       2089         165   Verizon Global Networks 
20115      688        601         369   Charter Communications 
22773      658       1745          45   Cox Communications, Inc.
 7011      633        217         413   Citizens Utilities 
11492      631         87          21   Cable One 
  852      582       1085         384   Telus Advanced Communications
19916      563         49          54   OLM LLC 
  855      549        244          63   Canadian Research Network 
 3602      537        127         109   Sprint Canada, Inc. 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      580       1951         456   UUNET - Commercial IP service
 3352      310       1612          29   Ibernet, Internet Access Netw
 3301      306       1071         292   TeliaNet Sweden
 8220      290        474         268   COLT Telecommunications
 3320      286       3989         239   Deutsche Telekom AG
  680      245       2025         242   DFN-IP service G-WiN
 3246      233        504         223   Song Networks
 6746      227         89         203   Dynamic Network Technologies,
 8708      218        276         201   Romania Data Systems S.A.
24863      207         40           9   LINKdotNET AS number
 8551      202        198          24   Bezeq International
 3269      198       2134          72   TELECOM ITALIA
 3215      196       1662          93   France Telecom Transpac
 1257      195        742         169   SWIPnet Swedish IP Network
 8866      179         37          16   Bulgarian Telecommunication C
 6830      175        765          35   UPC Distribution Services
  786      171       1778         171   The JANET IP Service
 5400      170        363         139   BT Ignite European Backbone
 9121      170        931          27   TTnet Autonomous System
30890      170         15          63   SC Kappa Invexim SRL

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      700       1067         227   UniNet S.A. de C.V. 
22047      409        158          11   VTR PUNTO NET S.A. 
11172      324        110          84   Servicios Alestra S.A de C.V 
16814      317         20           8   NSS, S.A. 
 6147      262        126          22   Telefonica Del Peru 
14117      205         12           6   Telefonica del Sur S.A. 
10481      181         72           8   Prima S.A. 
 7303      163         76          20   Telecom Argentina Stet-France
21826      138         16          21   INTERCABLE 
 5639      132         12           9   Telecommunications Services o
11556      132         80           4   Cable-Wireless Panama 
 6503      129        149          78   AVANTEL, S.A. 
19169      127          8          20   Telconet 
14259      115         10          12   GTD Internet S.A. 
23216      110         21           9   RAMtelecom Telecomunicaciones
 6505      106         88          78   Global One Communicaoes Ltda 
 7910      105          7          10   ANDINET ON LINE 
19429      103         58          44   E.T.B. 
14522      100         13           7   SatNet S.A. 
14571       97         25           3   Internet Group do Brasil 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        803         233   The Internet Solution 
 8452      170         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
33783      105          6           2   EEPAD TISP TELECOM & INTERNET
 2905       73        155          66   The Internetworking Company o
20928       57         16           2   Noor Advanced Technologies AS
15475       55         84           4   Nile Online
 5713       39        294          35   Telkom SA Ltd 
15706       31          8           3   Sudatel Internet Exchange Aut
33774       30          7          20   AS Number for Telecom Algeria
12455       28          6           3   Jambonet Autonomous system
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
 2561       19          6           2   Egyptian Universities Network
21491       19         17           2   UTL On-line is RF broadband I

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

  ASN   No of nets  Net Savings Description
 4323      1292        1039      Time Warner Telecom
18566       937         929      Covad Communications 
 4134      1129         908      CHINANET-BACKBONE
 9583       900         884      Sify Limited
 4755       913         842      Videsh Sanchar Nigam Ltd. Aut
19029       951         840      New Edge Networks 
  721      1001         698      DLA Systems Automation Center
22773       658         613      Cox Communications, Inc.
11492       631         610      Cable One 
 6197      1007         535      BellSouth Network Solutions, 
19262       695         530      Verizon Global Networks 
19916       563         509      OLM LLC 
 5668       532         509      CenturyTel Internet Holdings,
 9498       566         499      BHARTI BT INTERNET LTD.
17488       501         494      Hathway IP Over Cable Interne
  855       549         486      Canadian Research Network 
 8151       700         473      UniNet S.A. de C.V. 
 7545       530         460      TPG Internet Pty Ltd
 3602       537         428      Sprint Canada, Inc. 
22047       409         398      VTR PUNTO NET S.A. 

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

Bad AS  Designation  Network              Transit AS  Description
36656   UNALLOCATED   64.18.154.0/24       19318       Albany International
36656   UNALLOCATED   64.20.54.0/24        19318       Albany International
36656   UNALLOCATED   64.20.55.0/24        19318       Albany International
36656   UNALLOCATED   64.20.57.0/24        19318       Albany International
36656   UNALLOCATED   64.20.58.0/24        19318       Albany International
36656   UNALLOCATED   64.20.59.0/24        19318       Albany International
36656   UNALLOCATED   64.20.60.0/24        19318       Albany International
36656   UNALLOCATED   64.20.61.0/24        19318       Albany International
36656   UNALLOCATED   64.20.62.0/24        19318       Albany International
36727   UNALLOCATED   74.128.0.0/15         3356       Level 3 Communicatio
36727   UNALLOCATED   74.130.0.0/16         3356       Level 3 Communicatio
36727   UNALLOCATED   74.131.0.0/16         1239       Sprint 
36727   UNALLOCATED   74.132.0.0/16         3356       Level 3 Communicatio
36727   UNALLOCATED   74.133.0.0/17         3356       Level 3 Communicatio
36727   UNALLOCATED   74.133.128.0/18       3356       Level 3 Communicatio
36727   UNALLOCATED   74.134.0.0/15         1239       Sprint 
36727   UNALLOCATED   74.136.0.0/16         1239       Sprint 
36727   UNALLOCATED   74.137.0.0/18         3356       Level 3 Communicatio
36727   UNALLOCATED   74.137.64.0/20        3356       Level 3 Communicatio
36727   UNALLOCATED   74.137.80.0/20        1239       Sprint 
36727   UNALLOCATED   74.137.96.0/20        1239       Sprint 
36727   UNALLOCATED   74.137.112.0/20       1239       Sprint 
36727   UNALLOCATED   74.137.128.0/17       3356       Level 3 Communicatio
65289   PRIVATE       148.164.1.0/24        4755       Videsh Sanchar Nigam
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

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
223.1.1.0/24         22724     PUNTONET S.A. 
223.1.2.0/24         22724     PUNTONET S.A. 
223.1.3.0/24         22724     PUNTONET S.A. 

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       /10:9       /11:28      /12:89      
/13:199     /14:361     /15:706     /16:8796    /17:3201    /18:5278    
/19:11597   /20:13106   /21:11313   /22:14494   /23:15593   /24:101607  
/25:380     /26:266     /27:209     /28:61      /29:70      /30:35      
/31:0       /32:30      

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

  ASN   No of nets  Total ann.   Description
18566      920           937      Covad Communications 
19029      882           951      New Edge Networks 
 6197      796          1007      BellSouth Network Solutions, 
 7018      795          1508      AT&T WorldNet Services
 9583      729           900      Sify Limited
 4323      636          1292      Time Warner Telecom
11492      622           631      Cable One 
 2386      597           877      AT&T Data Communications Serv
19916      557           563      OLM LLC 
 7011      542           633      Citizens Utilities 
 4766      486           676      Korea Telecom (KIX)
  855      424           549      Canadian Research Network 
 5668      413           532      CenturyTel Internet Holdings,
15270      388           419      PaeTec.net -a division of Pae
 1239      385           848      Sprint 
  702      359           580      UUNET - Commercial IP service
 6198      356           507      BellSouth Network Solutions, 
 6517      356           386      Yipes Communications, Inc. 
17849      347           347      Telecommunications Technology
 8151      345           700      UniNet S.A. de C.V. 

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

   4:2         8:43       12:1634     13:1        15:12       16:3      
  17:3        18:4        20:43       24:740      25:1        30:2      
  32:59       38:211      40:54       41:1        44:3        47:6      
  52:4        55:1        56:3        57:25       58:152      59:188    
  60:181      61:844      62:764      63:1924     64:3180     65:2203   
  66:2993     67:600      68:659      69:1484     70:328      71:80     
  72:688      73:23       74:32       80:797      81:631      82:599    
  83:385      84:380      85:528      86:390      87:325      88:80     
  89:172     124:265     125:379     128:172     129:182     130:109    
 131:318     132:28      133:8       134:158     135:46      136:179    
 137:71      138:197     139:68      140:465     141:136     142:382    
 143:163     144:225     145:43      146:325     147:135     148:330    
 149:187     150:116     151:80      152:64      153:106     154:6      
 155:196     156:98      157:143     158:162     159:171     160:87     
 161:72      162:259     163:146     164:180     165:194     166:163    
 167:244     168:483     169:129     170:332     171:13      183:1      
 190:59      192:5735    193:3365    194:2600    195:1838    196:844    
 198:3900    199:3225    200:4433    201:922     202:6599    203:6887   
 204:3887    205:2080    206:2403    207:2939    208:2077    209:3802   
 210:1915    211:684     212:1188    213:1477    214:313     215:41     
 216:4117    217:1172    218:275     219:184     220:655     221:358    
 222:149     223:3      

End of report




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