[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 12 18:05:03 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 13 Oct, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/10/13/0400

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

BGP routing table entries examined:                              234258
    Prefixes after maximum aggregation:                          121514
    Deaggregation factor:                                          1.93
    Unique aggregates announced to Internet:                     114206
Total ASes present in the Internet Routing Table:                 26464
    Prefixes per ASN:                                              8.85
Origin-only ASes present in the Internet Routing Table:           23040
Origin ASes announcing only one prefix:                           11228
Transit ASes present in the Internet Routing Table:                3424
Transit-only ASes present in the Internet Routing Table:             77
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      20
    Max AS path prepend of ASN (35389)                               16
Prefixes from unregistered ASNs in the Routing Table:                21
    Unregistered ASNs in the Routing Table:                           5
Prefixes from 32-bit ASNs in the Routing Table:                       7
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1791437856
    Equivalent to 106 /8s, 199 /16s and 44 /24s
    Percentage of available address space announced:               48.3
    Percentage of allocated address space announced:               62.5
    Percentage of available address space allocated:               77.3
Total number of prefixes smaller than registry allocations:      108258

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

Prefixes being announced by APNIC Region ASes:                    54841
    Total APNIC prefixes after maximum aggregation:               21044
    APNIC Deaggregation factor:                                    2.61
Prefixes being announced from the APNIC address blocks:           51773
    Unique aggregates announced from the APNIC address blocks:    22934
APNIC Region origin ASes present in the Internet Routing Table:    3071
    APNIC Prefixes per ASN:                                       16.86
APNIC Region origin ASes announcing only one prefix:                815
APNIC Region transit ASes present in the Internet Routing Table:    470
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              321212640
    Equivalent to 19 /8s, 37 /16s and 80 /24s
    Percentage of available APNIC address space announced:         79.6

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:                    110231
    Total ARIN prefixes after maximum aggregation:                63413
    ARIN Deaggregation factor:                                     1.74
Prefixes being announced from the ARIN address blocks:            81463
    Unique aggregates announced from the ARIN address blocks:     32233
ARIN Region origin ASes present in the Internet Routing Table:    11897
    ARIN Prefixes per ASN:                                         6.85
ARIN Region origin ASes announcing only one prefix:                4574
ARIN Region transit ASes present in the Internet Routing Table:    1097
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          15
Number of ARIN addresses announced to Internet:               347325056
    Equivalent to 20 /8s, 179 /16s and 194 /24s
    Percentage of available ARIN address space announced:          76.7

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:                     49280
    Total RIPE prefixes after maximum aggregation:                31510
    RIPE Deaggregation factor:                                     1.56
Prefixes being announced from the RIPE address blocks:            45724
    Unique aggregates announced from the RIPE address blocks:     30211
RIPE Region origin ASes present in the Internet Routing Table:    10337
    RIPE Prefixes per ASN:                                         4.42
RIPE Region origin ASes announcing only one prefix:                5491
RIPE Region transit ASes present in the Internet Routing Table:    1628
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               330257664
    Equivalent to 19 /8s, 175 /16s and 85 /24s
    Percentage of available RIPE address space announced:          75.7

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
                       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:                   17167
    Total LACNIC prefixes after maximum aggregation:               4498
    LACNIC Deaggregation factor:                                   3.82
Prefixes being announced from the LACNIC address blocks:          15271
    Unique aggregates announced from the LACNIC address blocks:    8592
LACNIC Region origin ASes present in the Internet Routing Table:    873
    LACNIC Prefixes per ASN:                                      17.49
LACNIC Region origin ASes announcing only one prefix:               281
LACNIC Region transit ASes present in the Internet Routing Table:   153
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              44414208
    Equivalent to 2 /8s, 165 /16s and 181 /24s
    Percentage of available LACNIC address space announced:        44.1

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:                   2710
    Total AfriNIC prefixes after maximum aggregation:              1035
    AfriNIC Deaggregation factor:                                  2.62
Prefixes being announced from the AfriNIC address blocks:          2301
    Unique aggregates announced from the AfriNIC address blocks:   1375
AfriNIC Region origin ASes present in the Internet Routing Table:   208
    AfriNIC Prefixes per ASN:                                     11.06
AfriNIC Region origin ASes announcing only one prefix:               67
AfriNIC Region transit ASes present in the Internet Routing Table:   39
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              7599616
    Equivalent to 0 /8s, 115 /16s and 246 /24s
    Percentage of available AfriNIC address space announced:       22.6

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     1439        383          67   Videsh Sanchar Nigam Ltd. Aut
 9583     1125         81         421   Sify Limited
 4134     1095      11484         297   CHINANET-BACKBONE
 9498     1010        550          68   BHARTI BT INTERNET LTD.
17488      825         54          66   Hathway IP Over Cable Interne
 4766      809       5442         321   Korea Telecom (KIX)
23577      791         34         684   Korea Telecom (ATM-MPLS)
 7545      736        159         120   TPG Internet Pty Ltd
18101      603        119          50   Reliance Infocom Ltd Internet
 4802      574        132         145   Wantree Development
 4812      548        974          94   China Telecom (Shanghai)
 1221      539       1950         419   Telstra Pty Ltd
 9829      530       1312           9   BSNL National Internet Backbo
 4668      518         68          10   LG-EDS Systems Inc.
17676      502      10903          63   Softbank BB Corp.
 4808      492        792         119   CNCGROUP IP network: China169
 9443      454        121          72   Primus Telecommunications
 7474      379        217         266   SingTel Optus Pty Ltd
17557      368         57         188   Pakistan Telecom
17974      360        130          13   PT TELEKOMUNIKASI INDONESIA

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1475       6147         989   AT&T WorldNet Services
 4323     1365       1007         363   Time Warner Telecom
 2386     1230        628         742   AT&T Data Communications Serv
11492     1158        114          14   Cable One 
 6478     1127        330         139   AT&T Worldnet Services 
 6197     1030        718         513   BellSouth Network Solutions, 
18566     1028        288           9   Covad Communications 
  174      969       6779         843   Cogent Communications
 7011      958        289         557   Citizens Utilities 
  701      874       6573         680   UUNET Technologies, Inc. 
20115      837        765         447   Charter Communications 
 1239      802       2720         562   Sprint 
22773      793       2133          54   Cox Communications, Inc.
19262      786       2840         184   Verizon Global Networks 
  209      739       3810         584   Qwest 
 3356      680      10804         370   Level 3 Communications, LLC 
 5668      659        176          23   CenturyTel Internet Holdings,
 6517      587        165          36   Yipes Communications, Inc. 
  852      581       1093         358   Telus Advanced Communications
 6198      568        613         259   BellSouth Network Solutions, 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      473       1920         386   UUNET - Commercial IP service
24863      371         58          37   LINKdotNET AS number
 9116      355        168          27   Goldenlines main autonomous s
 3320      315       6035         262   Deutsche Telekom AG
 3301      312       1441         290   TeliaNet Sweden
 8551      296        284          38   Bezeq International
 6746      292        131         268   Dynamic Network Technologies,
  680      269       2045         257   DFN-IP service G-WiN
 8866      265         62          24   Bulgarian Telecommunication C
 8708      264        421         242   Romania Data Systems S.A.
 3215      262       2480         100   France Telecom Transpac
 8220      255        444         237   COLT Telecommunications
 3352      231       1898          40   Ibernet, Internet Access Netw
 3269      224       2839          73   TELECOM ITALIA
 9121      212       1442          25   TTnet Autonomous System
 3300      197        172          96   AUCS Communications Services 
 3292      195       1380         177   TDC Tele Danmark
 1257      194       1195         171   SWIPnet Swedish IP Network
12479      192        578           6   Uni2 Autonomous System
 3246      190        253         180   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1054       2212         216   UniNet S.A. de C.V. 
11830      514        299           9   Instituto Costarricense de El
16814      427         27          10   NSS, S.A. 
11172      379        114          60   Servicios Alestra S.A de C.V 
14522      349         30           6   SatNet S.A. 
 7303      348        168          46   Telecom Argentina Stet-France
 6471      343         75          35   ENTEL CHILE S.A. 
22047      317        246          13   VTR PUNTO NET S.A. 
14117      285         19          15   Telefonica del Sur S.A. 
10481      261        104           9   Prima S.A. 
10620      256         71          27   TVCABLE BOGOTA 
11556      237        128           4   Cable-Wireless Panama 
 6147      230        178          24   Telefonica Del Peru 
 6503      209        170          82   AVANTEL, S.A. 
23216      209         17          45   RAMtelecom Telecomunicaciones
 7738      187        538          24   Telecomunicacoes da Bahia S.A
28573      184        301          23   NET Servicos de Comunicao S.A
 8163      183         11           8   METROTEL REDES S.A. 
21826      181         32          50   INTERCABLE 
20299      180         25          30   NEWCOM AMERICAS 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      279        885         226   The Internet Solution 
 8452      219        188           7   TEDATA
 6713      144        135          11   Itissalat Al-MAGHRIB
 2018      140        299         115   Tertiary Education Network 
33783      126          8          12   EEPAD TISP TELECOM & INTERNET
 5536      124          8          10   Internet Egypt Network
33776      100          6           3   Starcomms Nigeria Limited
24835       88         48           6   RAYA Telecom - Egypt
15475       77         84           4   Nile Online
 2905       75        174          72   The Internetworking Company o
23889       73         24          15   MAURITIUS TELECOM
15706       55         12           4   Sudatel Internet Exchange Aut
33774       48         29          25   AS Number for Telecom Algeria
 5713       46        294          36   Telkom SA Ltd 
16637       42         21          29   Johnnic e-Ventures 
12455       36          6           3   Jambonet Autonomous system
 8524       32          2          10   AUCEGYPT Autonomous System
29975       26         10           9   Vodacom
10798       25         16           1   Standard Bank of South Africa
21280       25          4           4   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
 4755      1439        1372      Videsh Sanchar Nigam Ltd. Aut
11492      1158        1144      Cable One 
18566      1028        1019      Covad Communications 
 4323      1365        1002      Time Warner Telecom
 6478      1127         988      AT&T Worldnet Services 
 9498      1010         942      BHARTI BT INTERNET LTD.
 8151      1054         838      UniNet S.A. de C.V. 
 4134      1095         798      CHINANET-BACKBONE
17488       825         759      Hathway IP Over Cable Interne
22773       793         739      Cox Communications, Inc.
 9583      1125         704      Sify Limited
 5668       659         636      CenturyTel Internet Holdings,
 7545       736         616      TPG Internet Pty Ltd
19262       786         602      Verizon Global Networks 
18101       603         553      Reliance Infocom Ltd Internet
 6517       587         551      Yipes Communications, Inc. 
15270       560         521      PaeTec.net -a division of Pae
 9829       530         521      BSNL National Internet Backbo
 6197      1030         517      BellSouth Network Solutions, 
19916       568         517      OLM LLC 

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

Bad AS  Designation  Network              Transit AS  Description
64250   RESERVED      59.144.44.0/24        9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.64.0/19       9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.96.0/20       9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.112.0/21      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.176.0/21      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.188.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.192.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.196.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.200.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.204.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.208.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.212.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.216.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.220.0/22      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.240.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.242.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.244.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.167.246.0/23      9498       BHARTI BT INTERNET L
64250   RESERVED      122.171.0.0/24        9498       BHARTI BT INTERNET L
64250   RESERVED      122.171.1.0/24        9498       BHARTI BT INTERNET L
65000   PRIVATE       216.136.11.0/24      27182       Peregrine Capital Ma

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

Network            Origin AS  Description
101.13.13.0/24        8764     LIETUVOS-TELEKOMAS Autonomous
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
172.11.12.0/24        1803     SPRINT 
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        /8:19       /9:9       /10:16      /11:37      /12:135     
/13:265     /14:476     /15:934     /16:9662    /17:4104    /18:6690    
/19:14341   /20:16550   /21:15332   /22:19665   /23:20556   /24:123042  
/25:770     /26:1010    /27:541     /28:91      /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1150          1158      Cable One 
 6478     1126          1127      AT&T Worldnet Services 
18566     1010          1028      Covad Communications 
 9583      967          1125      Sify Limited
 2386      918          1230      AT&T Data Communications Serv
 7011      845           958      Citizens Utilities 
 4755      811          1439      Videsh Sanchar Nigam Ltd. Aut
 7018      811          1475      AT&T WorldNet Services
23577      782           791      Korea Telecom (ATM-MPLS)
 6197      774          1030      BellSouth Network Solutions, 
 9498      692          1010      BHARTI BT INTERNET LTD.
17488      644           825      Hathway IP Over Cable Interne
 4766      609           809      Korea Telecom (KIX)
 4323      582          1365      Time Warner Telecom
19916      563           568      OLM LLC 
 6517      542           587      Yipes Communications, Inc. 
15270      524           560      PaeTec.net -a division of Pae
 5668      519           659      CenturyTel Internet Holdings,
 4668      508           518      LG-EDS Systems Inc.
18101      505           603      Reliance Infocom Ltd Internet

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

   4:8         8:90       12:1795     15:20       16:3        17:5      
  18:13       20:36       24:979      25:1        32:60       33:3      
  38:355      40:61       41:326      44:2        47:8        52:3      
  55:3        56:3        57:23       58:466      59:414      60:377    
  61:982      62:915      63:1987     64:3260     65:2372     66:3537   
  67:833      68:677      69:1981     70:460      71:108      72:1419   
  73:5        74:710      75:261      76:142      77:389      78:242    
  80:849      81:801      82:578      83:367      84:636      85:831    
  86:346      87:567      88:287      89:1015     90:37       91:617    
  96:1        97:6        98:4       101:1       116:373     117:199    
 118:39      121:318     122:613     123:201     124:691     125:1033   
 128:275     129:195     130:137     131:368     132:55      133:9      
 134:193     135:34      136:188     137:83      138:156     139:74     
 140:416     141:174     142:371     143:254     144:317     145:46     
 146:314     147:129     148:431     149:186     150:111     151:157    
 152:89      153:121     154:11      155:257     156:161     157:220    
 158:159     159:197     160:135     161:98      162:173     163:183    
 164:495     165:397     166:290     167:304     168:495     169:125    
 170:398     171:22      172:3       189:95      190:1119    192:5712   
 193:3968    194:3205    195:2484    196:962     198:3791    199:3230   
 200:5227    201:1227    202:7399    203:7894    204:3952    205:2010   
 206:2415    207:2804    208:2910    209:3484    210:2445    211:1083   
 212:1272    213:1494    214:405     215:45      216:4082    217:1201   
 218:318     219:384     220:1001    221:412     222:262    

End of report



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