Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Nov 30 18:03:50 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 01 Dec, 2007

Report Website:     http://thyme.apnic.net
Detailed Analysis:  http://thyme.apnic.net/current/

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

BGP routing table entries examined:                              239310
    Prefixes after maximum aggregation:                          123017
    Deaggregation factor:                                          1.95
    Unique aggregates announced to Internet:                     116714
Total ASes present in the Internet Routing Table:                 26802
    Prefixes per ASN:                                              8.93
Origin-only ASes present in the Internet Routing Table:           23334
Origin ASes announcing only one prefix:                           11385
Transit ASes present in the Internet Routing Table:                3468
Transit-only ASes present in the Internet Routing Table:             74
Average AS path length visible in the Internet Routing Table:       3.6
    Max AS path length visible:                                      28
    Max AS path prepend of ASN (35389)                               25
Prefixes from unregistered ASNs in the Routing Table:                 2
    Unregistered ASNs in the Routing Table:                           8
Prefixes from 32-bit ASNs in the Routing Table:                       8
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:             14
Number of addresses announced to Internet:                   1796436832
    Equivalent to 107 /8s, 19 /16s and 115 /24s
    Percentage of available address space announced:               48.5
    Percentage of allocated address space announced:               62.0
    Percentage of available address space allocated:               78.2
Total number of prefixes smaller than registry allocations:      111869

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

Prefixes being announced by APNIC Region ASes:                    55812
    Total APNIC prefixes after maximum aggregation:               21251
    APNIC Deaggregation factor:                                    2.63
Prefixes being announced from the APNIC address blocks:           52717
    Unique aggregates announced from the APNIC address blocks:    23396
APNIC Region origin ASes present in the Internet Routing Table:    3089
    APNIC Prefixes per ASN:                                       17.07
APNIC Region origin ASes announcing only one prefix:                805
APNIC Region transit ASes present in the Internet Routing Table:    472
Average APNIC Region AS path length visible:                        3.7
    Max APNIC Region AS path length visible:                         14
Number of APNIC addresses announced to Internet:              326303136
    Equivalent to 19 /8s, 114 /16s and 253 /24s
    Percentage of available APNIC address space announced:         74.6

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, 114/7, 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:                    111989
    Total ARIN prefixes after maximum aggregation:                63832
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:            82596
    Unique aggregates announced from the ARIN address blocks:     32775
ARIN Region origin ASes present in the Internet Routing Table:    11975
    ARIN Prefixes per ASN:                                         6.90
ARIN Region origin ASes announcing only one prefix:                4607
ARIN Region transit ASes present in the Internet Routing Table:    1126
Average ARIN Region AS path length visible:                         3.4
    Max ARIN Region AS path length visible:                          15
Number of ARIN addresses announced to Internet:               354117248
    Equivalent to 21 /8s, 27 /16s and 102 /24s
    Percentage of available ARIN address space announced:          78.2

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, 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:                     50277
    Total RIPE prefixes after maximum aggregation:                32218
    RIPE Deaggregation factor:                                     1.56
Prefixes being announced from the RIPE address blocks:            47104
    Unique aggregates announced from the RIPE address blocks:     31176
RIPE Region origin ASes present in the Internet Routing Table:    10570
    RIPE Prefixes per ASN:                                         4.46
RIPE Region origin ASes announcing only one prefix:                5620
RIPE Region transit ASes present in the Internet Routing Table:    1641
Average RIPE Region AS path length visible:                         4.0
    Max RIPE Region AS path length visible:                          28
Number of RIPE addresses announced to Internet:               337246848
    Equivalent to 20 /8s, 25 /16s and 250 /24s
    Percentage of available RIPE address space announced:          77.3

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:                   17959
    Total LACNIC prefixes after maximum aggregation:               4600
    LACNIC Deaggregation factor:                                   3.90
Prefixes being announced from the LACNIC address blocks:          15937
    Unique aggregates announced from the LACNIC address blocks:    8874
LACNIC Region origin ASes present in the Internet Routing Table:    880
    LACNIC Prefixes per ASN:                                      18.11
LACNIC Region origin ASes announcing only one prefix:               284
LACNIC Region transit ASes present in the Internet Routing Table:   158
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        19
Number of LACNIC addresses announced to Internet:              46780928
    Equivalent to 2 /8s, 201 /16s and 210 /24s
    Percentage of available LACNIC address space announced:        46.5

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:                   3262
    Total AfriNIC prefixes after maximum aggregation:              1100
    AfriNIC Deaggregation factor:                                  2.97
Prefixes being announced from the AfriNIC address blocks:          2430
    Unique aggregates announced from the AfriNIC address blocks:   1439
AfriNIC Region origin ASes present in the Internet Routing Table:   213
    AfriNIC Prefixes per ASN:                                     11.41
AfriNIC Region origin ASes announcing only one prefix:               69
AfriNIC Region transit ASes present in the Internet Routing Table:   40
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       14
Number of AfriNIC addresses announced to Internet:              8190976
    Equivalent to 0 /8s, 124 /16s and 252 /24s
    Percentage of available AfriNIC address space announced:       24.4

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
 4755     1485        383          69   Videsh Sanchar Nigam Ltd. Aut
 4134     1106      11569         304   CHINANET-BACKBONE
 9583     1093         81         423   Sify Limited
 9498     1056        550          65   BHARTI BT INTERNET LTD.
17488      908         59          76   Hathway IP Over Cable Interne
 9829      849       1312           9   BSNL National Internet Backbo
 4766      818       5474         330   Korea Telecom (KIX)
23577      800         34         684   Korea Telecom (ATM-MPLS)
 7545      683        152         116   TPG Internet Pty Ltd
18101      607        120          55   Reliance Infocom Ltd Internet
 1221      546       1952         422   Telstra Pty Ltd
 4812      530        869          79   China Telecom (Shanghai)
 4668      519         68          10   LG-EDS Systems Inc.
 4808      506        796         120   CNCGROUP IP network: China169
17676      503      10919          64   Softbank BB Corp.
 4802      471        133         142   Wantree Development
 9443      440        121          70   Primus Telecommunications
17974      403        145          17   PT TELEKOMUNIKASI INDONESIA
 7474      383        202         269   SingTel Optus Pty Ltd
 4837      362       5084         173   chinanet IDC center beijing n

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 7018     1498       6139        1007   AT&T WorldNet Services
 4323     1380       1017         363   Time Warner Telecom
 2386     1282        633         792   AT&T Data Communications Serv
11492     1179        128          36   Cable One 
 6478     1124        329         178   AT&T Worldnet Services 
18566     1033        288           9   Covad Communications 
 6197     1027        719         509   BellSouth Network Solutions, 
 7011      992        295         577   Citizens Utilities 
  174      979       6858         829   Cogent Communications
  701      904       6550         709   UUNET Technologies, Inc. 
20115      846        774         457   Charter Communications 
 3356      842      10887         416   Level 3 Communications, LLC 
22773      823       2133          54   Cox Communications, Inc.
19262      815       2967         188   Verizon Global Networks 
 1239      792       2711         551   Sprint 
  209      742       3786         583   Qwest 
 5668      658        176          17   CenturyTel Internet Holdings,
15270      608        160          40   PaeTec.net -a division of Pae
 6517      598        163          33   Yipes Communications, Inc. 
  852      582       1109         357   Telus Advanced Communications

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
  702      468       1917         381   UUNET - Commercial IP service
 3292      405       1653         366   TDC Tele Danmark
 9116      349        184          28   Goldenlines main autonomous s
 3301      319       1457         294   TeliaNet Sweden
 3320      316       6035         262   Deutsche Telekom AG
 8452      283        188           7   TEDATA
 8866      282         78          26   Bulgarian Telecommunication C
 6746      276        129         253   Dynamic Network Technologies,
 8551      276        266          40   Bezeq International
 8708      274        421         244   Romania Data Systems S.A.
  680      268       2045         254   DFN-IP service G-WiN
 3215      266       2535          92   France Telecom Transpac
 8220      253        446         233   COLT Telecommunications
 3352      231       1916          46   Ibernet, Internet Access Netw
 3269      227       2965          69   TELECOM ITALIA
 3300      214        220         102   AUCS Communications Services 
 9121      211       1444          26   TTnet Autonomous System
 9155      198         43          11   QualityNet AS number
 1257      195       1195         178   SWIPnet Swedish IP Network
12479      194        578           6   Uni2 Autonomous System

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
 8151     1160       2409         218   UniNet S.A. de C.V. 
11830      539        299           9   Instituto Costarricense de El
16814      427         27          10   NSS, S.A. 
 7303      403        195          60   Telecom Argentina Stet-France
14522      381         33           8   SatNet S.A. 
11172      379        115          62   Servicios Alestra S.A de C.V 
 6471      363         85          38   ENTEL CHILE S.A. 
22047      322        254          13   VTR PUNTO NET S.A. 
10481      301        120          10   Prima S.A. 
10620      285         78          20   TVCABLE BOGOTA 
14117      285         19          15   Telefonica del Sur S.A. 
 6147      258        214          21   Telefonica Del Peru 
 7738      237        602          25   Telecomunicacoes da Bahia S.A
11556      236        128           4   Cable-Wireless Panama 
23216      221         17          47   RAMtelecom Telecomunicaciones
 6503      218        187          86   AVANTEL, S.A. 
20299      208         34          30   NEWCOM AMERICAS 
28573      208        313          32   NET Servicos de Comunicao S.A
19169      190         12          20   Telconet 
21826      186         33          47   INTERCABLE 

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

  ASN   No of nets  /20 equiv  MaxAgg  Description
24863      367         60          51   LINKdotNET AS number
 3741      281        869         226   The Internet Solution 
20858      200         34           3   EgyNet
 6713      145        135          11   Itissalat Al-MAGHRIB
 2018      144        300         116   Tertiary Education Network 
 5536      124          8          10   Internet Egypt Network
33783      124          8          15   EEPAD TISP TELECOM & INTERNET
33776      100          6           3   Starcomms Nigeria Limited
24835       88         48           6   RAYA Telecom - Egypt
15475       82         84           4   Nile Online
 2905       77        174          73   The Internetworking Company o
23889       74         24          15   MAURITIUS TELECOM
20484       66          5           6   Yalla Online Autonomous Syste
15706       58         12           4   Sudatel Internet Exchange Aut
29571       57         13           7   Ci Telecom Autonomous system 
33774       50         37          28   AS Number for Telecom Algeria
 5713       46        422          36   Telkom SA Ltd 
16637       42         21          28   Johnnic e-Ventures 
 8524       32          2          10   AUCEGYPT Autonomous System
12455       32          6           3   Jambonet Autonomous system

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

  ASN   No of nets  Net Savings Description
 4755      1485        1416      Videsh Sanchar Nigam Ltd. Aut
11492      1179        1143      Cable One 
18566      1033        1024      Covad Communications 
 4323      1380        1017      Time Warner Telecom
 9498      1056         991      BHARTI BT INTERNET LTD.
 6478      1124         946      AT&T Worldnet Services 
 8151      1160         942      UniNet S.A. de C.V. 
 9829       849         840      BSNL National Internet Backbo
17488       908         832      Hathway IP Over Cable Interne
 4134      1106         802      CHINANET-BACKBONE
22773       823         769      Cox Communications, Inc.
 9583      1093         670      Sify Limited
 5668       658         641      CenturyTel Internet Holdings,
19262       815         627      Verizon Global Networks 
15270       608         568      PaeTec.net -a division of Pae
 7545       683         567      TPG Internet Pty Ltd
 6517       598         565      Yipes Communications, Inc. 
18101       607         552      Reliance Infocom Ltd Internet
11830       539         530      Instituto Costarricense de El
19916       569         522      OLM LLC 

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

Bad AS  Designation  Network              Transit AS  Description
65068   PRIVATE       79.171.184.0/21      43895       *
64779   PRIVATE       124.161.4.0/23       38356       BeiJing Sincerity-ti

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

Network            Origin AS  Description
31.31.31.0/24         9730     The Best ISP to go Multimedia
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
172.14.254.0/24      20312     CNTI-REACCIUN "Centro Naciona
172.15.254.0/24      20312     CNTI-REACCIUN "Centro Naciona
172.33.1.0/24         7018     AT&T WorldNet Services
173.173.173.0/24      9730     The Best ISP to go Multimedia
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       /10:16      /11:40      /12:134     
/13:270     /14:485     /15:956     /16:9747    /17:4198    /18:6797    
/19:14805   /20:16858   /21:16161   /22:20006   /23:20999   /24:125469  
/25:785     /26:877     /27:564     /28:103     /29:5       /30:0       
/31:0       /32:8       

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

  ASN   No of nets  Total ann.   Description
11492     1168          1179      Cable One 
 6478     1123          1124      AT&T Worldnet Services 
18566     1015          1033      Covad Communications 
 2386      974          1282      AT&T Data Communications Serv
 9583      938          1093      Sify Limited
 7011      877           992      Citizens Utilities 
 4755      852          1485      Videsh Sanchar Nigam Ltd. Aut
 7018      821          1498      AT&T WorldNet Services
23577      791           800      Korea Telecom (ATM-MPLS)
 6197      770          1027      BellSouth Network Solutions, 
 9498      738          1056      BHARTI BT INTERNET LTD.
17488      723           908      Hathway IP Over Cable Interne
 4766      607           818      Korea Telecom (KIX)
 4323      585          1380      Time Warner Telecom
15270      571           608      PaeTec.net -a division of Pae
19916      564           569      OLM LLC 
 6517      554           598      Yipes Communications, Inc. 
 5668      518           658      CenturyTel Internet Holdings,
 4668      509           519      LG-EDS Systems Inc.
18101      503           607      Reliance Infocom Ltd Internet

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

   4:9         8:89       12:1872     13:1        15:20       16:3      
  17:6        18:13       20:35       24:1007     25:1        31:1      
  32:62       33:3        38:363      40:64       41:414      44:2      
  47:8        52:3        55:3        56:3        57:21       58:477    
  59:414      60:383      61:997      62:990      63:1987     64:3298   
  65:2360     66:3593     67:929      68:642      69:2035     70:467    
  71:106      72:1435     73:7        74:744      75:263      76:150    
  77:478      78:359      79:40       80:889      81:812      82:565    
  83:353      84:618      85:882      86:362      87:609      88:280    
  89:1043     90:39       91:792      92:13       96:1        97:6      
  98:16      114:1       115:1       116:455     117:230     118:47     
 121:357     122:654     123:223     124:727     125:982     128:309    
 129:195     130:137     131:374     132:60      133:9       134:193    
 135:33      136:195     137:82      138:149     139:74      140:512    
 141:146     142:373     143:259     144:323     145:51      146:329    
 147:125     148:481     149:185     150:170     151:137     152:95     
 153:122     154:11      155:269     156:199     157:225     158:160    
 159:197     160:184     161:97      162:189     163:185     164:558    
 165:415     166:289     167:310     168:537     169:126     170:419    
 171:29      172:5       173:1       189:118     190:1266    192:5730   
 193:4045    194:3221    195:2315    196:938     198:3809    199:3236   
 200:5236    201:1275    202:7472    203:7800    204:3986    205:2011   
 206:2406    207:2773    208:2998    209:3541    210:2513    211:1110   
 212:1274    213:1589    214:407     215:45      216:4081    217:1207   
 218:331     219:404     220:1005    221:408     222:282    

End of report



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