[AusNOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Sat Aug 25 04:03:24 EST 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 25 Aug, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/08/25/0400

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

BGP routing table entries examined:                              229751
    Prefixes after maximum aggregation:                          119874
    Deaggregation factor:                                          1.92
    Unique aggregates announced to Internet:                     110416
Total ASes present in the Internet Routing Table:                 26036
    Prefixes per ASN:                                              8.82
Origin-only ASes present in the Internet Routing Table:           22668
Origin ASes announcing only one prefix:                           11045
Transit ASes present in the Internet Routing Table:                3368
Transit-only ASes present in the Internet Routing Table:             76
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      21
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                 5
    Unregistered ASNs in the Routing Table:                           5
Prefixes from 32-bit ASNs in the Routing Table:                       6
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             11
Number of addresses announced to Internet:                   1755282784
    Equivalent to 104 /8s, 159 /16s and 125 /24s
    Percentage of available address space announced:               47.4
    Percentage of allocated address space announced:               62.0
    Percentage of available address space allocated:               76.4
Total number of prefixes smaller than registry allocations:      121765

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

Prefixes being announced by APNIC Region ASes:                    53875
    Total APNIC prefixes after maximum aggregation:               20446
    APNIC Deaggregation factor:                                    2.63
Prefixes being announced from the APNIC address blocks:           50793
    Unique aggregates announced from the APNIC address blocks:    21320
APNIC Region origin ASes present in the Internet Routing Table:    3034
    APNIC Prefixes per ASN:                                       16.74
APNIC Region origin ASes announcing only one prefix:                806
APNIC Region transit ASes present in the Internet Routing Table:    468
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         19
Number of APNIC addresses announced to Internet:              312948384
    Equivalent to 18 /8s, 167 /16s and 54 /24s
    Percentage of available APNIC address space announced:         77.5

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, 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:                    108606
    Total ARIN prefixes after maximum aggregation:                62865
    ARIN Deaggregation factor:                                     1.73
Prefixes being announced from the ARIN address blocks:            79932
    Unique aggregates announced from the ARIN address blocks:     31815
ARIN Region origin ASes present in the Internet Routing Table:    11778
    ARIN Prefixes per ASN:                                         6.79
ARIN Region origin ASes announcing only one prefix:                4530
ARIN Region transit ASes present in the Internet Routing Table:    1080
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          14
Number of ARIN addresses announced to Internet:               342669824
    Equivalent to 20 /8s, 108 /16s and 186 /24s
    Percentage of available ARIN address space announced:          75.6

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:                     48155
    Total RIPE prefixes after maximum aggregation:                31109
    RIPE Deaggregation factor:                                     1.55
Prefixes being announced from the RIPE address blocks:            44559
    Unique aggregates announced from the RIPE address blocks:     29324
RIPE Region origin ASes present in the Internet Routing Table:    10092
    RIPE Prefixes per ASN:                                         4.42
RIPE Region origin ASes announcing only one prefix:                5367
RIPE Region transit ASes present in the Internet Routing Table:    1605
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          21
Number of RIPE addresses announced to Internet:               325478784
    Equivalent to 19 /8s, 102 /16s and 105 /24s
    Percentage of available RIPE address space announced:          74.6

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
                       40960-44031
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:                   16376
    Total LACNIC prefixes after maximum aggregation:               4412
    LACNIC Deaggregation factor:                                   3.71
Prefixes being announced from the LACNIC address blocks:          14510
    Unique aggregates announced from the LACNIC address blocks:    7783
LACNIC Region origin ASes present in the Internet Routing Table:    849
    LACNIC Prefixes per ASN:                                      17.09
LACNIC Region origin ASes announcing only one prefix:               273
LACNIC Region transit ASes present in the Internet Routing Table:   146
Average LACNIC Region AS path length visible:                       3.9
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              42072832
    Equivalent to 2 /8s, 129 /16s and 251 /24s
    Percentage of available LACNIC address space announced:        62.7

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:                   2728
    Total AfriNIC prefixes after maximum aggregation:              1030
    AfriNIC Deaggregation factor:                                  2.65
Prefixes being announced from the AfriNIC address blocks:          2272
    Unique aggregates announced from the AfriNIC address blocks:   1342
AfriNIC Region origin ASes present in the Internet Routing Table:   206
    AfriNIC Prefixes per ASN:                                     11.03
AfriNIC Region origin ASes announcing only one prefix:               69
AfriNIC Region transit ASes present in the Internet Routing Table:   32
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       15
Number of AfriNIC addresses announced to Internet:              7439360
    Equivalent to 0 /8s, 113 /16s and 132 /24s
    Percentage of available AfriNIC address space announced:       22.2

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     1337        383          73   Videsh Sanchar Nigam Ltd. Aut
 4134     1336      11150         289   CHINANET-BACKBONE
 9583     1133        108          17   Sify Limited
 9498      995        532          66   BHARTI BT INTERNET LTD.
 4766      800       5441         316   Korea Telecom (KIX)
23577      786         34         683   Korea Telecom (ATM-MPLS)
17488      778         51          54   Hathway IP Over Cable Interne
 7545      732        159         121   TPG Internet Pty Ltd
18101      592        119          48   Reliance Infocom Ltd Internet
 4812      547        968          96   China Telecom (Shanghai)
 1221      543       1951         424   Telstra Pty Ltd
 4668      516         68          10   LG-EDS Systems Inc.
17676      503      10919          64   Softbank BB Corp.
 4808      476        768         107   CNCGROUP IP network: China169
 9443      464        122          77   Primus Telecommunications
 4802      431        116         157   Wantree Development
 7474      381        216         269   SingTel Optus Pty Ltd
 4837      366       5104         167   chinanet IDC center beijing n
 9829      363        258          14   BSNL National Internet Backbo
17974      363        130          13   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1479       6076         994   AT&T WorldNet Services
 4323     1324        992         372   Time Warner Telecom
 2386     1215        617         749   AT&T Data Communications Serv
 6478     1141        322         134   AT&T Worldnet Services 
11492     1135        110          16   Cable One 
 6197     1029        718         509   BellSouth Network Solutions, 
18566     1020        288           9   Covad Communications 
  174      971       6780         861   Cogent Communications
  701      943       6578         723   UUNET Technologies, Inc. 
 7011      918        277         554   Citizens Utilities 
20115      815        748         434   Charter Communications 
 1239      796       2720         564   Sprint 
19262      767       2743         186   Verizon Global Networks 
22773      759       2148          49   Cox Communications, Inc.
  209      739       3820         584   Qwest 
 5668      630        171          24   CenturyTel Internet Holdings,
 6517      589        165          37   Yipes Communications, Inc. 
  852      577       1096         362   Telus Advanced Communications
 3356      571      10826         339   Level 3 Communications, LLC 
  855      570        254          73   Canadian Research Network 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 2119      505        918         378   Telenor Internet Access
  702      491       1921         393   UUNET - Commercial IP service
24863      366         57          40   LINKdotNET AS number
 9116      344        168          26   Goldenlines main autonomous s
 3320      314       6035         261   Deutsche Telekom AG
 3301      313       1456         293   TeliaNet Sweden
 6746      288        130         264   Dynamic Network Technologies,
  680      265       2061         256   DFN-IP service G-WiN
 8708      262        420         241   Romania Data Systems S.A.
 8220      260        445         243   COLT Telecommunications
 3215      258       2424          98   France Telecom Transpac
 8551      232        228          27   Bezeq International
 3352      226       1868          38   Ibernet, Internet Access Netw
 3269      221       2775          73   TELECOM ITALIA
 9121      214       1441          24   TTnet Autonomous System
 3292      195       1379         175   TDC Tele Danmark
12479      194        578           6   Uni2 Autonomous System
 1257      192       1195         170   SWIPnet Swedish IP Network
 3300      192        172          93   AUCS Communications Services 
 3246      186        252         177   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      925       1973         209   UniNet S.A. de C.V. 
11830      483        299           9   Instituto Costarricense de El
16814      426         26           9   NSS, S.A. 
11172      375        115          61   Servicios Alestra S.A de C.V 
 7303      334        175          42   Telecom Argentina Stet-France
14522      334         28           7   SatNet S.A. 
 6471      322         75          33   ENTEL CHILE S.A. 
22047      318        246          13   VTR PUNTO NET S.A. 
14117      281         19          15   Telefonica del Sur S.A. 
10481      278        104           9   Prima S.A. 
11556      237        128           4   Cable-Wireless Panama 
 6147      227        178          24   Telefonica Del Peru 
10620      218         61          20   TVCABLE BOGOTA 
 6503      201        170          82   AVANTEL, S.A. 
23216      195         16          43   RAMtelecom Telecomunicaciones
20299      179         25          31   NEWCOM AMERICAS 
 8163      177         11           6   METROTEL REDES S.A. 
19169      164         12          15   Telconet 
21826      164         29          58   INTERCABLE 
 7738      162        506          23   Telecomunicacoes da Bahia S.A

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      283        868         224   The Internet Solution 
 8452      233        188           7   TEDATA
 6713      142        135          11   Itissalat Al-MAGHRIB
 2018      140        301         115   Tertiary Education Network 
33783      126          8          11   EEPAD TISP TELECOM & INTERNET
 5536      124          8          10   Internet Egypt Network
33776       99          6           8   Starcomms Nigeria Limited
24835       88         48           7   RAYA Telecom - Egypt
15475       76         84           4   Nile Online
 2905       74        174          71   The Internetworking Company o
 2561       62          6           2   Egyptian Universities Network
15706       52         12           4   Sudatel Internet Exchange Aut
23889       52         24          15   MAURITIUS TELECOM
 5713       46        294          36   Telkom SA Ltd 
16637       46         21          29   Johnnic e-Ventures 
33774       46         29          24   AS Number for Telecom Algeria
 8524       31          2          10   AUCEGYPT Autonomous System
21280       30          4           4   Swift Global Kenya Ltd.Is an 
10798       27         16           1   Standard Bank of South Africa
12455       27          6           3   Jambonet Autonomous system

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

  ASN   No of nets  Net Savings Description
 4755      1337        1264      Videsh Sanchar Nigam Ltd. Aut
11492      1135        1119      Cable One 
 9583      1133        1116      Sify Limited
 4134      1336        1047      CHINANET-BACKBONE
18566      1020        1011      Covad Communications 
 6478      1141        1007      AT&T Worldnet Services 
 4323      1324         952      Time Warner Telecom
 9498       995         929      BHARTI BT INTERNET LTD.
17488       778         724      Hathway IP Over Cable Interne
 8151       925         716      UniNet S.A. de C.V. 
22773       759         710      Cox Communications, Inc.
 7545       732         611      TPG Internet Pty Ltd
 5668       630         606      CenturyTel Internet Holdings,
19262       767         581      Verizon Global Networks 
 6517       589         552      Yipes Communications, Inc. 
18101       592         544      Reliance Infocom Ltd Internet
15270       568         530      PaeTec.net -a division of Pae
 6197      1029         520      BellSouth Network Solutions, 
19916       568         517      OLM LLC 
 4668       516         506      LG-EDS Systems Inc.

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

Bad AS  Designation  Network              Transit AS  Description
64539   PRIVATE       170.213.128.0/24      7132       SBC Internet Service
64539   PRIVATE       170.213.129.0/24      7132       SBC Internet Service
64539   PRIVATE       170.213.132.0/24      7132       SBC Internet Service
64501   RESERVED      195.189.160.0/24     35041       Crystone Autonomous 
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
7.1.1.0/24            1239     Sprint 
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
172.33.1.0/24         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       /10:15      /11:37      /12:134     
/13:260     /14:471     /15:920     /16:9611    /17:4076    /18:6589    
/19:13938   /20:16134   /21:14919   /22:19185   /23:20139   /24:120884  
/25:781     /26:1032    /27:504     /28:82      /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
 6478     1140          1141      AT&T Worldnet Services 
11492     1128          1135      Cable One 
18566     1002          1020      Covad Communications 
 9583      966          1133      Sify Limited
 2386      908          1215      AT&T Data Communications Serv
 7018      817          1479      AT&T WorldNet Services
 7011      814           918      Citizens Utilities 
 6197      782          1029      BellSouth Network Solutions, 
23577      777           786      Korea Telecom (ATM-MPLS)
 4755      720          1337      Videsh Sanchar Nigam Ltd. Aut
 9498      668           995      BHARTI BT INTERNET LTD.
17488      601           778      Hathway IP Over Cable Interne
 4766      598           800      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      557          1324      Time Warner Telecom
 6517      555           589      Yipes Communications, Inc. 
15270      532           568      PaeTec.net -a division of Pae
 4668      506           516      LG-EDS Systems Inc.
18101      499           592      Reliance Infocom Ltd Internet
 5668      495           630      CenturyTel Internet Holdings,

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

   4:8         7:1         8:88       12:1814     13:1        15:19     
  16:3        17:3        18:13       20:37       24:964      25:1      
  32:56       33:3        38:347      40:60       41:315      44:2      
  47:4        52:4        55:3        56:3        57:25       58:470    
  59:386      60:364      61:1006     62:935      63:2001     64:3189   
  65:2364     66:3402     67:778      68:651      69:1963     70:445    
  71:104      72:1381     73:2        74:634      75:261      76:126    
  77:295      78:46       80:832      81:832      82:655      83:378    
  84:598      85:855      86:337      87:484      88:281      89:954    
  90:25       91:503      97:5       116:296     117:142     121:268    
 122:592     123:151     124:671     125:991     128:275     129:214    
 130:140     131:363     132:55      133:9       134:197     135:34     
 136:189     137:81      138:156     139:72      140:494     141:173    
 142:379     143:255     144:298     145:46      146:327     147:124    
 148:410     149:143     150:110     151:159     152:88      153:122    
 154:3       155:263     156:161     157:213     158:158     159:171    
 160:113     161:96      162:175     163:180     164:480     165:394    
 166:275     167:297     168:511     169:122     170:391     171:22     
 172:2       189:67      190:989     192:5740    193:3969    194:3185   
 195:2264    196:987     198:3811    199:3277    200:5138    201:1180   
 202:7408    203:7699    204:3928    205:1977    206:2414    207:2803   
 208:2786    209:3487    210:2461    211:1086    212:1329    213:1466   
 214:417     215:41      216:3978    217:1184    218:363     219:381    
 220:1026    221:412     222:264    

End of report



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