[afnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 22 18:03:27 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 23 Jun, 2007

Report Website: http://thyme.apnic.net
This report:    http://thyme.apnic.net/ap-data/2007/06/23/0400

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

BGP routing table entries examined:                              223924
    Prefixes after maximum aggregation:                          118158
    Deaggregation factor:                                          1.90
    Unique aggregates announced to Internet:                     108766
Total ASes present in the Internet Routing Table:                 25503
    Prefixes per ASN:                                              8.78
Origin-only ASes present in the Internet Routing Table:           22191
Origin ASes announcing only one prefix:                           10772
Transit ASes present in the Internet Routing Table:                3312
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:                                      22
    Max AS path prepend of ASN (41497)                               13
Prefixes from unregistered ASNs in the Routing Table:                 4
    Unregistered ASNs in the Routing Table:                           8
Prefixes from 32-bit ASNs in the Routing Table:                       4
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             12
Number of addresses announced to Internet:                   1725064544
    Equivalent to 102 /8s, 210 /16s and 101 /24s
    Percentage of available address space announced:               46.5
    Percentage of allocated address space announced:               61.7
    Percentage of available address space allocated:               75.5
Total number of prefixes smaller than registry allocations:      117585

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

Prefixes being announced by APNIC Region ASes:                    52408
    Total APNIC prefixes after maximum aggregation:               20509
    APNIC Deaggregation factor:                                    2.56
Prefixes being announced from the APNIC address blocks:           49331
    Unique aggregates announced from the APNIC address blocks:    21648
APNIC Region origin ASes present in the Internet Routing Table:    2982
    APNIC Prefixes per ASN:                                       16.54
APNIC Region origin ASes announcing only one prefix:                802
APNIC Region transit ASes present in the Internet Routing Table:    454
Average APNIC Region AS path length visible:                        3.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC addresses announced to Internet:              300576416
    Equivalent to 17 /8s, 234 /16s and 110 /24s
    Percentage of available APNIC address space announced:         74.5

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:                    106951
    Total ARIN prefixes after maximum aggregation:                62141
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:            78637
    Unique aggregates announced from the ARIN address blocks:     31120
ARIN Region origin ASes present in the Internet Routing Table:    11639
    ARIN Prefixes per ASN:                                         6.76
ARIN Region origin ASes announcing only one prefix:                4472
ARIN Region transit ASes present in the Internet Routing Table:    1070
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN addresses announced to Internet:               336997248
    Equivalent to 20 /8s, 22 /16s and 43 /24s
    Percentage of available ARIN address space announced:          74.4

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:                     47033
    Total RIPE prefixes after maximum aggregation:                30246
    RIPE Deaggregation factor:                                     1.56
Prefixes being announced from the RIPE address blocks:            43460
    Unique aggregates announced from the RIPE address blocks:     28715
RIPE Region origin ASes present in the Internet Routing Table:     9806
    RIPE Prefixes per ASN:                                         4.43
RIPE Region origin ASes announcing only one prefix:                5188
RIPE Region transit ASes present in the Internet Routing Table:    1573
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          22
Number of RIPE addresses announced to Internet:               317645824
    Equivalent to 18 /8s, 238 /16s and 228 /24s
    Percentage of available RIPE address space announced:          78.9

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
                       40960-44031
RIPE Address Blocks    62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
                       212/7 and 217/8

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

Prefixes being announced by LACNIC Region ASes:                   15002
    Total LACNIC prefixes after maximum aggregation:               4249
    LACNIC Deaggregation factor:                                   3.53
Prefixes being announced from the LACNIC address blocks:          13042
    Unique aggregates announced from the LACNIC address blocks:    7379
LACNIC Region origin ASes present in the Internet Routing Table:    808
    LACNIC Prefixes per ASN:                                      16.14
LACNIC Region origin ASes announcing only one prefix:               254
LACNIC Region transit ASes present in the Internet Routing Table:   141
Average LACNIC Region AS path length visible:                       4.1
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC addresses announced to Internet:              39278592
    Equivalent to 2 /8s, 87 /16s and 88 /24s
    Percentage of available LACNIC address space announced:        58.5

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:                   2523
    Total AfriNIC prefixes after maximum aggregation:              1005
    AfriNIC Deaggregation factor:                                  2.51
Prefixes being announced from the AfriNIC address blocks:          1997
    Unique aggregates announced from the AfriNIC address blocks:   1216
AfriNIC Region origin ASes present in the Internet Routing Table:   190
    AfriNIC Prefixes per ASN:                                     10.51
AfriNIC Region origin ASes announcing only one prefix:               56
AfriNIC Region transit ASes present in the Internet Routing Table:   36
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              6180608
    Equivalent to 0 /8s, 94 /16s and 79 /24s
    Percentage of available AfriNIC address space announced:       18.4

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     1295      10021         281   CHINANET-BACKBONE
 4755     1237        382          72   Videsh Sanchar Nigam Ltd. Aut
 9583     1104         79         396   Sify Limited
 9498      999        469          66   BHARTI BT INTERNET LTD.
 4766      788       4943         312   Korea Telecom (KIX)
23577      778         35         704   Korea Telecom (ATM-MPLS)
17488      704         46          41   Hathway IP Over Cable Interne
 7545      668        149         107   TPG Internet Pty Ltd
18101      559        117          35   Reliance Infocom Ltd Internet
 1221      548       1954         423   Telstra Pty Ltd
 4668      508         68          10   LG-EDS Systems Inc.
17676      504      10935          65   Softbank BB Corp.
 4812      469        882          87   China Telecom (Shanghai)
 9443      467        121          77   Primus Telecommunications
 7474      412        218         270   SingTel Optus Pty Ltd
 4802      409         88         149   Wantree Development
17974      371        129          12   PT TELEKOMUNIKASI INDONESIA
 4808      366        668         114   CNCGROUP IP network: China169
 2907      362       1700         301   SINET Japan
 9829      362        258          14   BSNL National Internet Backbo

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1475       6101         978   AT&T WorldNet Services
 4323     1308       1042         367   Time Warner Telecom
 2386     1205        615         754   AT&T Data Communications Serv
 6478     1115        365         146   AT&T Worldnet Services 
11492     1091        107          23   Cable One 
 6197     1025        716         509   BellSouth Network Solutions, 
18566     1010        288           9   Covad Communications 
  174      956       6778         868   Cogent Communications
  701      955       6597         726   UUNET Technologies, Inc. 
 7011      845        250         535   Citizens Utilities 
 1239      811       2736         580   Sprint 
20115      799        730         425   Charter Communications 
19262      776       2705         203   Verizon Global Networks 
  209      752       3854         580   Qwest 
22773      726       1892          44   Cox Communications, Inc.
 5668      614        169          20   CenturyTel Internet Holdings,
 7029      600        488          80   Alltel Information Services, 
  852      581       1089         365   Telus Advanced Communications
  855      575        254          73   Canadian Research Network 
19916      568         49          51   OLM LLC 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 2119      514       1075         136   Telenor Internet Access
  702      510       1938         402   UUNET - Commercial IP service
24863      351         56          35   LINKdotNET AS number
 3307      322        180          43   BaneTele AS (formerly Enitel)
 3301      310       1455         290   TeliaNet Sweden
 3320      306       6034         257   Deutsche Telekom AG
 6746      280        129         256   Dynamic Network Technologies,
  680      264       2044         255   DFN-IP service G-WiN
 3215      250       2320          93   France Telecom Transpac
 8220      250        444         242   COLT Telecommunications
 8708      235        415         228   Romania Data Systems S.A.
 8551      223        213          28   Bezeq International
 5089      221       1658          53   NTL Group Limited
 3269      218       2679          75   TELECOM ITALIA
 3352      216       1848          43   Ibernet, Internet Access Netw
 9121      209       1441          24   TTnet Autonomous System
 9116      199        136          25   Goldenlines main autonomous s
 1257      197       1196         175   SWIPnet Swedish IP Network
 3246      194        329         184   Song Networks
12479      188        578           6   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151      850       1918         209   UniNet S.A. de C.V. 
11830      483        299           9   Instituto Costarricense de El
11172      371        116          64   Servicios Alestra S.A de C.V 
16814      361         22           8   NSS, S.A. 
22047      313        238          12   VTR PUNTO NET S.A. 
 7303      296        144          31   Telecom Argentina Stet-France
 6471      275         74          33   ENTEL CHILE S.A. 
14117      255         19          15   Telefonica del Sur S.A. 
11556      231        128           4   Cable-Wireless Panama 
 6147      224        170          26   Telefonica Del Peru 
 6503      212        188          84   AVANTEL, S.A. 
10620      208         59          14   TVCABLE BOGOTA 
23216      186         19          42   RAMtelecom Telecomunicaciones
10481      181         72           8   Prima S.A. 
14522      170         27           8   SatNet S.A. 
21826      157         27          59   INTERCABLE 
19169      153         10          31   Telconet 
20299      150         23          12   NEWCOM AMERICAS 
 7738      146        474          22   Telecomunicacoes da Bahia S.A
14571      138         33           4   Internet Group do Brasil 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 3741      280        867         221   The Internet Solution 
 8452      214        188           7   TEDATA
 6713      142        135          11   Itissalat Al-MAGHRIB
 2018      136        301         111   Tertiary Education Network 
 5536      123          8          15   Internet Egypt Network
33783      119          8           9   EEPAD TISP TELECOM & INTERNET
24835       85         48           6   RAYA Telecom - Egypt
 2905       77        174          73   The Internetworking Company o
15475       74         84           4   Nile Online
 2561       62          6           2   Egyptian Universities Network
15706       56         12           4   Sudatel Internet Exchange Aut
23889       48         16          13   MAURITIUS TELECOM
 5713       44        294          34   Telkom SA Ltd 
33774       43         29          24   AS Number for Telecom Algeria
16637       37         21          29   Johnnic e-Ventures 
33776       36          2           2   Starcomms Nigeria Limited
 8524       32          2           8   AUCEGYPT Autonomous System
12455       32          6           3   Jambonet Autonomous system
21280       27          4           4   Swift Global Kenya Ltd.Is an 
10798       24          2          15   Standard Bank of South Africa

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

  ASN   No of nets  Net Savings Description
 4755      1237        1165      Videsh Sanchar Nigam Ltd. Aut
11492      1091        1068      Cable One 
 4134      1295        1014      CHINANET-BACKBONE
18566      1010        1001      Covad Communications 
 6478      1115         969      AT&T Worldnet Services 
 4323      1308         941      Time Warner Telecom
 9498       999         933      BHARTI BT INTERNET LTD.
 9583      1104         708      Sify Limited
22773       726         682      Cox Communications, Inc.
17488       704         663      Hathway IP Over Cable Interne
 8151       850         641      UniNet S.A. de C.V. 
 5668       614         594      CenturyTel Internet Holdings,
19262       776         573      Verizon Global Networks 
 7545       668         561      TPG Internet Pty Ltd
18101       559         524      Reliance Infocom Ltd Internet
 7029       600         520      Alltel Information Services, 
19916       568         517      OLM LLC 
 6197      1025         516      BellSouth Network Solutions, 
 6517       547         514      Yipes Communications, Inc. 
15270       548         513      PaeTec.net -a division of Pae

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

Bad AS  Designation  Network              Transit AS  Description
65332   PRIVATE       63.166.106.192/27     1803       SPRINT 
65535   PRIVATE       200.62.98.0/24        7137       TELEMATIX/ ENITEL 
24410   UNALLOCATED   203.119.28.0/24       4134       CHINANET-BACKBONE
22895   UNALLOCATED   216.174.38.0/24      19094       Adelphia Business So

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

Network            Origin AS  Description
7.1.1.0/24            1239     Sprint 
94.110.196.0/24      21161     Bechtle Autonomous System
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      /11:35      /12:125     
/13:247     /14:462     /15:891     /16:9483    /17:4004    /18:6465    
/19:13655   /20:15789   /21:14177   /22:18546   /23:19620   /24:118020  
/25:800     /26:982     /27:477     /28:67      /29:10      /30:14      
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
 6478     1105          1115      AT&T Worldnet Services 
11492     1082          1091      Cable One 
18566      992          1010      Covad Communications 
 9583      946          1104      Sify Limited
 2386      903          1205      AT&T Data Communications Serv
 7018      793          1475      AT&T WorldNet Services
 6197      777          1025      BellSouth Network Solutions, 
23577      764           778      Korea Telecom (ATM-MPLS)
 7011      746           845      Citizens Utilities 
 9498      670           999      BHARTI BT INTERNET LTD.
 4755      637          1237      Videsh Sanchar Nigam Ltd. Aut
 4766      594           788      Korea Telecom (KIX)
19916      563           568      OLM LLC 
 4323      545          1308      Time Warner Telecom
17488      527           704      Hathway IP Over Cable Interne
 6517      515           547      Yipes Communications, Inc. 
15270      515           548      PaeTec.net -a division of Pae
 4668      498           508      LG-EDS Systems Inc.
 5668      479           614      CenturyTel Internet Holdings,
18101      475           559      Reliance Infocom Ltd Internet

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

   4:8         7:1         8:82        9:1        12:1813     15:18     
  16:3        17:3        18:11       20:38       24:934      25:1      
  32:52       33:2        38:325      40:61       41:169      44:2      
  47:5        52:4        55:3        56:3        57:24       58:417    
  59:402      60:310      61:986      62:878      63:1975     64:3125   
  65:2362     66:3272     67:746      68:637      69:1889     70:430    
  71:112      72:1321     73:1        74:528      75:261      76:65     
  77:245      78:2        80:816      81:812      82:665      83:390    
  84:415      85:929      86:340      87:477      88:287      89:859    
  90:7        91:373      94:1        97:6        98:3       116:194    
 117:57      121:205     122:553     123:117     124:856     125:945    
 128:286     129:224     130:128     131:367     132:53      133:9      
 134:193     135:39      136:184     137:81      138:142     139:72     
 140:478     141:172     142:373     143:241     144:297     145:43     
 146:320     147:119     148:402     149:146     150:115     151:158    
 152:93      153:126     154:4       155:253     156:152     157:196    
 158:158     159:158     160:106     161:88      162:227     163:183    
 164:447     165:406     166:294     167:287     168:512     169:119    
 170:401     171:16      172:1       189:58      190:590     192:5765   
 193:3894    194:3189    195:2312    196:915     198:3832    199:3289   
 200:4825    201:1070    202:7403    203:7542    204:3967    205:2028   
 206:2414    207:2817    208:2694    209:3511    210:2483    211:960    
 212:1307    213:1493    214:407     215:40      216:3984    217:1149   
 218:350     219:383     220:973     221:412     222:261    

End of report



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