[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Oct 19 18:05:50 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 20 Oct, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/10/20/0400

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

BGP routing table entries examined:                              234760
    Prefixes after maximum aggregation:                          121843
    Deaggregation factor:                                          1.93
    Unique aggregates announced to Internet:                     114579
Total ASes present in the Internet Routing Table:                 26476
    Prefixes per ASN:                                              8.87
Origin-only ASes present in the Internet Routing Table:           23047
Origin ASes announcing only one prefix:                           11233
Transit ASes present in the Internet Routing Table:                3429
Transit-only ASes present in the Internet Routing Table:             79
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:                           6
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:             10
Number of addresses announced to Internet:                   1796115328
    Equivalent to 107 /8s, 14 /16s and 139 /24s
    Percentage of available address space announced:               48.5
    Percentage of allocated address space announced:               62.7
    Percentage of available address space allocated:               77.3
Total number of prefixes smaller than registry allocations:      108718

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

Prefixes being announced by APNIC Region ASes:                    54729
    Total APNIC prefixes after maximum aggregation:               21025
    APNIC Deaggregation factor:                                    2.60
Prefixes being announced from the APNIC address blocks:           51663
    Unique aggregates announced from the APNIC address blocks:    22925
APNIC Region origin ASes present in the Internet Routing Table:    3043
    APNIC Prefixes per ASN:                                       16.98
APNIC Region origin ASes announcing only one prefix:                800
APNIC Region transit ASes present in the Internet Routing Table:    460
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              321956288
    Equivalent to 19 /8s, 48 /16s and 169 /24s
    Percentage of available APNIC address space announced:         79.8

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:                    110474
    Total ARIN prefixes after maximum aggregation:                63577
    ARIN Deaggregation factor:                                     1.74
Prefixes being announced from the ARIN address blocks:            81619
    Unique aggregates announced from the ARIN address blocks:     32335
ARIN Region origin ASes present in the Internet Routing Table:    11906
    ARIN Prefixes per ASN:                                         6.86
ARIN Region origin ASes announcing only one prefix:                4579
ARIN Region transit ASes present in the Internet Routing Table:    1102
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          15
Number of ARIN addresses announced to Internet:               347934592
    Equivalent to 20 /8s, 189 /16s and 15 /24s
    Percentage of available ARIN address space announced:          76.8

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:                     49505
    Total RIPE prefixes after maximum aggregation:                31654
    RIPE Deaggregation factor:                                     1.56
Prefixes being announced from the RIPE address blocks:            45954
    Unique aggregates announced from the RIPE address blocks:     30301
RIPE Region origin ASes present in the Internet Routing Table:    10366
    RIPE Prefixes per ASN:                                         4.43
RIPE Region origin ASes announcing only one prefix:                5506
RIPE Region transit ASes present in the Internet Routing Table:    1639
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          20
Number of RIPE addresses announced to Internet:               333599872
    Equivalent to 19 /8s, 226 /16s and 84 /24s
    Percentage of available RIPE address space announced:          76.5

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:                   17313
    Total LACNIC prefixes after maximum aggregation:               4537
    LACNIC Deaggregation factor:                                   3.82
Prefixes being announced from the LACNIC address blocks:          15340
    Unique aggregates announced from the LACNIC address blocks:    8607
LACNIC Region origin ASes present in the Internet Routing Table:    871
    LACNIC Prefixes per ASN:                                      17.61
LACNIC Region origin ASes announcing only one prefix:               282
LACNIC Region transit ASes present in the Internet Routing Table:   155
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              44467456
    Equivalent to 2 /8s, 166 /16s and 133 /24s
    Percentage of available LACNIC address space announced:        44.2

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:              1036
    AfriNIC Deaggregation factor:                                  2.62
Prefixes being announced from the AfriNIC address blocks:          2305
    Unique aggregates announced from the AfriNIC address blocks:   1382
AfriNIC Region origin ASes present in the Internet Routing Table:   210
    AfriNIC Prefixes per ASN:                                     10.98
AfriNIC Region origin ASes announcing only one prefix:               66
AfriNIC Region transit ASes present in the Internet Routing Table:   38
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              7623680
    Equivalent to 0 /8s, 116 /16s and 84 /24s
    Percentage of available AfriNIC address space announced:       22.7

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     1470        383          67   Videsh Sanchar Nigam Ltd. Aut
 9583     1120         81         420   Sify Limited
 4134     1100      11540         300   CHINANET-BACKBONE
 9498     1010        550          68   BHARTI BT INTERNET LTD.
17488      850         55          63   Hathway IP Over Cable Interne
 4766      799       5440         314   Korea Telecom (KIX)
23577      791         34         684   Korea Telecom (ATM-MPLS)
 7545      730        159         119   TPG Internet Pty Ltd
18101      606        119          52   Reliance Infocom Ltd Internet
 4802      571        133         142   Wantree Development
 1221      539       1950         419   Telstra Pty Ltd
 9829      530       1312           9   BSNL National Internet Backbo
 4812      523        858          76   China Telecom (Shanghai)
 4668      518         68          10   LG-EDS Systems Inc.
17676      502      10903          63   Softbank BB Corp.
 4808      493        792         119   CNCGROUP IP network: China169
 9443      440        121          72   Primus Telecommunications
 7474      381        218         267   SingTel Optus Pty Ltd
17974      363        130          13   PT TELEKOMUNIKASI INDONESIA
 4837      359       5137         170   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1481       6148         995   AT&T WorldNet Services
 4323     1365       1006         360   Time Warner Telecom
 2386     1234        627         743   AT&T Data Communications Serv
11492     1155        116          16   Cable One 
 6478     1117        329         169   AT&T Worldnet Services 
 6197     1029        718         513   BellSouth Network Solutions, 
18566     1028        288           9   Covad Communications 
  174      980       6786         843   Cogent Communications
 7011      961        290         558   Citizens Utilities 
  701      881       6575         689   UUNET Technologies, Inc. 
20115      837        765         447   Charter Communications 
 1239      802       2720         562   Sprint 
22773      796       2133          54   Cox Communications, Inc.
19262      789       2847         180   Verizon Global Networks 
  209      745       3793         586   Qwest 
 3356      728      10858         388   Level 3 Communications, LLC 
 5668      661        176          17   CenturyTel Internet Holdings,
 6517      588        165          36   Yipes Communications, Inc. 
  852      582       1101         359   Telus Advanced Communications
19916      569         49          47   OLM LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      471       1919         384   UUNET - Commercial IP service
24863      372         58          36   LINKdotNET AS number
 9116      338        168          27   Goldenlines main autonomous s
 3301      316       1441         293   TeliaNet Sweden
 3320      315       6035         262   Deutsche Telekom AG
 8551      296        284          38   Bezeq International
 6746      275        128         252   Dynamic Network Technologies,
 8708      271        421         243   Romania Data Systems S.A.
  680      269       2045         257   DFN-IP service G-WiN
 8866      265         62          24   Bulgarian Telecommunication C
 3215      263       2488          99   France Telecom Transpac
 8220      255        444         237   COLT Telecommunications
 3352      232       1914          41   Ibernet, Internet Access Netw
 3269      228       2935          75   TELECOM ITALIA
 9121      212       1442          25   TTnet Autonomous System
 3300      200        172          96   AUCS Communications Services 
 3292      195       1380         177   TDC Tele Danmark
 1257      194       1194         176   SWIPnet Swedish IP Network
12479      194        578           6   Uni2 Autonomous System
 3246      191        253         181   Song Networks

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1052       2196         212   UniNet S.A. de C.V. 
11830      514        299           9   Instituto Costarricense de El
16814      427         27          10   NSS, S.A. 
11172      380        114          60   Servicios Alestra S.A de C.V 
14522      380         32           7   SatNet S.A. 
 7303      359        173          52   Telecom Argentina Stet-France
 6471      347         75          36   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      231        178          24   Telefonica Del Peru 
 6503      210        170          82   AVANTEL, S.A. 
23216      207         16          44   RAMtelecom Telecomunicaciones
 7738      204        538          24   Telecomunicacoes da Bahia S.A
28573      194        306          22   NET Servicos de Comunicao S.A
 8163      183         11           8   METROTEL REDES S.A. 
21826      181         32          50   INTERCABLE 
19169      180         12          20   Telconet 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      278        869         225   The Internet Solution 
 8452      221        188           7   TEDATA
 6713      143        135          11   Itissalat Al-MAGHRIB
 2018      140        299         115   Tertiary Education Network 
 5536      124          8          10   Internet Egypt Network
33783      111          8           8   EEPAD TISP TELECOM & INTERNET
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         33          25   AS Number for Telecom Algeria
 5713       46        294          36   Telkom SA Ltd 
16637       42         21          29   Johnnic e-Ventures 
12455       35          6           3   Jambonet Autonomous system
 8524       32          2          10   AUCEGYPT Autonomous System
10798       26         16           1   Standard Bank of South Africa
29975       26         10           9   Vodacom
21280       25          4           4   Swift Global Kenya Ltd.Is an 

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

  ASN   No of nets  Net Savings Description
 4755      1470        1403      Videsh Sanchar Nigam Ltd. Aut
11492      1155        1139      Cable One 
18566      1028        1019      Covad Communications 
 4323      1365        1005      Time Warner Telecom
 6478      1117         948      AT&T Worldnet Services 
 9498      1010         942      BHARTI BT INTERNET LTD.
 8151      1052         840      UniNet S.A. de C.V. 
 4134      1100         800      CHINANET-BACKBONE
17488       850         787      Hathway IP Over Cable Interne
22773       796         742      Cox Communications, Inc.
 9583      1120         700      Sify Limited
 5668       661         644      CenturyTel Internet Holdings,
 7545       730         611      TPG Internet Pty Ltd
19262       789         609      Verizon Global Networks 
18101       606         554      Reliance Infocom Ltd Internet
 6517       588         552      Yipes Communications, Inc. 
19916       569         522      OLM LLC 
 9829       530         521      BSNL National Internet Backbo
 6197      1029         516      BellSouth Network Solutions, 
 4668       518         508      LG-EDS Systems Inc.

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
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        /8:19       /9:9       /10:16      /11:38      /12:135     
/13:267     /14:477     /15:937     /16:9686    /17:4124    /18:6666    
/19:14372   /20:16567   /21:15354   /22:19696   /23:20592   /24:123360  
/25:780     /26:1021    /27:537     /28:94      /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1146          1155      Cable One 
 6478     1116          1117      AT&T Worldnet Services 
18566     1010          1028      Covad Communications 
 9583      962          1120      Sify Limited
 2386      924          1234      AT&T Data Communications Serv
 7011      848           961      Citizens Utilities 
 4755      839          1470      Videsh Sanchar Nigam Ltd. Aut
 7018      812          1481      AT&T WorldNet Services
23577      782           791      Korea Telecom (ATM-MPLS)
 6197      773          1029      BellSouth Network Solutions, 
 9498      693          1010      BHARTI BT INTERNET LTD.
17488      673           850      Hathway IP Over Cable Interne
 4766      597           799      Korea Telecom (KIX)
 4323      580          1365      Time Warner Telecom
19916      564           569      OLM LLC 
 6517      543           588      Yipes Communications, Inc. 
 5668      521           661      CenturyTel Internet Holdings,
 4668      508           518      LG-EDS Systems Inc.
18101      507           606      Reliance Infocom Ltd Internet
15270      486           521      PaeTec.net -a division of Pae

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

   4:8         8:84       12:1793     15:19       16:3        17:5      
  18:13       20:36       24:979      25:1        32:60       33:3      
  38:355      40:64       41:335      44:2        47:8        52:3      
  55:3        56:3        57:23       58:469      59:416      60:379    
  61:987      62:929      63:1987     64:3276     65:2374     66:3556   
  67:829      68:674      69:2002     70:464      71:107      72:1410   
  73:6        74:719      75:261      76:147      77:394      78:250    
  80:854      81:789      82:570      83:349      84:612      85:831    
  86:342      87:583      88:290      89:1028     90:39       91:661    
  92:3        96:1        97:6        98:5       116:406     117:199    
 118:40      121:321     122:592     123:202     124:694     125:1034   
 128:275     129:195     130:136     131:365     132:55      133:9      
 134:193     135:34      136:188     137:82      138:157     139:74     
 140:500     141:150     142:370     143:253     144:318     145:46     
 146:335     147:130     148:485     149:187     150:113     151:137    
 152:89      153:121     154:11      155:261     156:161     157:221    
 158:160     159:197     160:136     161:98      162:179     163:183    
 164:495     165:397     166:290     167:307     168:498     169:125    
 170:399     171:22      172:2       189:86      190:1167    192:5721   
 193:3986    194:3217    195:2467    196:940     198:3800    199:3242   
 200:5219    201:1235    202:7309    203:7875    204:3953    205:2013   
 206:2422    207:2800    208:2895    209:3480    210:2438    211:1090   
 212:1324    213:1513    214:419     215:44      216:4099    217:1208   
 218:318     219:388     220:993     221:410     222:263    

End of report



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