[apops] Weekly Routing Table Report

  • To: apops at apops dot net, nanog at nanog dot org, routing-wg at ripe dot net, afnog at afnog dot org, ausnog at ausnog dot net, sanog at sanog dot org
  • Subject: [apops] Weekly Routing Table Report
  • From: Routing Analysis Role Account <cscora at apnic dot net>
  • Date: Sat, 5 Apr 2008 04:07:56 +1000 (EST)
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  • Reply-to: pfs@cisco.com
    • Routing Table as seen from APNIC's router in Japan.
      Daily listings are sent to bgp-stats at lists dot apnic dot net
      
      For historical data, please see http://thyme.apnic.net.
      
      If you have any comments please contact Philip Smith <pfs at cisco dot com>.
      
      Routing Table Report   04:00 +10GMT Sat 05 Apr, 2008
      
      Report Website:     http://thyme.apnic.net
      Detailed Analysis:  http://thyme.apnic.net/current/
      
      Analysis Summary
      ----------------
      
      BGP routing table entries examined:                              251663
          Prefixes after maximum aggregation:                          126431
          Deaggregation factor:                                          1.99
          Unique aggregates announced to Internet:                     122544
      Total ASes present in the Internet Routing Table:                 27824
          Prefixes per ASN:                                              9.04
      Origin-only ASes present in the Internet Routing Table:           24255
      Origin ASes announcing only one prefix:                           11268
      Transit ASes present in the Internet Routing Table:                3569
      Transit-only ASes present in the Internet Routing Table:             80
      Average AS path length visible in the Internet Routing Table:       3.6
          Max AS path length visible:                                      18
          Max AS path prepend of ASN (43380)                               13
      Prefixes from unregistered ASNs in the Routing Table:             24961
          Unregistered ASNs in the Routing Table:                        1890
      Number of 32-bit ASNs allocated by the RIRs:                         47
      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:            850
      Number of addresses announced to Internet:                   1856218272
          Equivalent to 110 /8s, 163 /16s and 164 /24s
          Percentage of available address space announced:               50.1
          Percentage of allocated address space announced:               61.5
          Percentage of available address space allocated:               81.4
          Percentage of address space in use by end-sites:               71.1
      Total number of prefixes smaller than registry allocations:      120069
      
      APNIC Region Analysis Summary
      -----------------------------
      
      Prefixes being announced by APNIC Region ASes:                    42554
          Total APNIC prefixes after maximum aggregation:               13541
          APNIC Deaggregation factor:                                    3.14
      Prefixes being announced from the APNIC address blocks:           54788
          Unique aggregates announced from the APNIC address blocks:    23781
      APNIC Region origin ASes present in the Internet Routing Table:    1917
          APNIC Prefixes per ASN:                                       28.58
      APNIC Region origin ASes announcing only one prefix:                552
      APNIC Region transit ASes present in the Internet Routing Table:    351
      Average APNIC Region AS path length visible:                        3.7
          Max APNIC Region AS path length visible:                         15
      Number of APNIC addresses announced to Internet:              339369312
          Equivalent to 20 /8s, 58 /16s and 93 /24s
          Percentage of available APNIC address space announced:         77.8
      
      APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
      (pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
      APNIC Address Blocks    58/8,  59/8,  60/8,  61/8, 114/8, 115/8, 116/8,
                             117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8,
                             124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8,
                             218/8, 219/8, 220/8, 221/8, 222/8,
      
      ARIN Region Analysis Summary
      ----------------------------
      
      Prefixes being announced by ARIN Region ASes:                    107122
          Total ARIN prefixes after maximum aggregation:                58976
          ARIN Deaggregation factor:                                     1.82
      Prefixes being announced from the ARIN address blocks:            85863
          Unique aggregates announced from the ARIN address blocks:     34029
      ARIN Region origin ASes present in the Internet Routing Table:    11687
          ARIN Prefixes per ASN:                                         7.35
      ARIN Region origin ASes announcing only one prefix:                4545
      ARIN Region transit ASes present in the Internet Routing Table:    1038
      Average ARIN Region AS path length visible:                         3.4
          Max ARIN Region AS path length visible:                          15
      Number of ARIN addresses announced to Internet:               361937024
          Equivalent to 21 /8s, 146 /16s and 184 /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,  64/8,  65/8,  66/8,  67/8,  68/8,
                              69/8,  70/8,  71/8,  72/8,  73/8,  74/8,  75/8,
                              76/8,  96/8,  97/8,  98/8,  99/8, 173/8, 174/8,
                             199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
                             216/8,
      
      RIPE Region Analysis Summary
      ----------------------------
      
      Prefixes being announced by RIPE Region ASes:                     53958
          Total RIPE prefixes after maximum aggregation:                33261
          RIPE Deaggregation factor:                                     1.62
      Prefixes being announced from the RIPE address blocks:            49136
          Unique aggregates announced from the RIPE address blocks:     32912
      RIPE Region origin ASes present in the Internet Routing Table:    11137
          RIPE Prefixes per ASN:                                         4.41
      RIPE Region origin ASes announcing only one prefix:                5813
      RIPE Region transit ASes present in the Internet Routing Table:    1699
      Average RIPE Region AS path length visible:                         4.0
          Max RIPE Region AS path length visible:                          18
      Number of RIPE addresses announced to Internet:               351438208
          Equivalent to 20 /8s, 242 /16s and 133 /24s
          Percentage of available RIPE address space announced:          80.6
      
      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
                             40960-45055
      RIPE Address Blocks     62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                              83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                              90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 193/8,
                             194/8, 195/8, 212/8, 213/8, 217/8,
      
      LACNIC Region Analysis Summary
      ------------------------------
      
      Prefixes being announced by LACNIC Region ASes:                   19456
          Total LACNIC prefixes after maximum aggregation:               4866
          LACNIC Deaggregation factor:                                   4.00
      Prefixes being announced from the LACNIC address blocks:          17825
          Unique aggregates announced from the LACNIC address blocks:    9667
      LACNIC Region origin ASes present in the Internet Routing Table:    885
          LACNIC Prefixes per ASN:                                      20.14
      LACNIC Region origin ASes announcing only one prefix:               279
      LACNIC Region transit ASes present in the Internet Routing Table:   152
      Average LACNIC Region AS path length visible:                       4.0
          Max LACNIC Region AS path length visible:                        16
      Number of LACNIC addresses announced to Internet:              50249728
          Equivalent to 2 /8s, 254 /16s and 192 /24s
          Percentage of available LACNIC address space announced:        49.9
      
      LACNIC AS Blocks       26592-26623, 27648-28671, plus ERX transfers
      LACNIC Address Blocks  186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
      
      AfriNIC Region Analysis Summary
      -------------------------------
      
      Prefixes being announced by AfriNIC Region ASes:                   3611
          Total AfriNIC prefixes after maximum aggregation:              1119
          AfriNIC Deaggregation factor:                                  3.23
      Prefixes being announced from the AfriNIC address blocks:          4007
          Unique aggregates announced from the AfriNIC address blocks:   1805
      AfriNIC Region origin ASes present in the Internet Routing Table:   234
          AfriNIC Prefixes per ASN:                                     17.12
      AfriNIC Region origin ASes announcing only one prefix:               79
      AfriNIC Region transit ASes present in the Internet Routing Table:   45
      Average AfriNIC Region AS path length visible:                      3.7
          Max AfriNIC Region AS path length visible:                       14
      Number of AfriNIC addresses announced to Internet:             10136064
          Equivalent to 0 /8s, 154 /16s and 170 /24s
          Percentage of available AfriNIC address space announced:       30.2
      
      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     1624        387          88   Videsh Sanchar Nigam Ltd. Aut
       9583     1157        129         191   Sify Limited
       9498     1145        550          61   BHARTI BT INTERNET LTD.
      17488     1010         68          84   Hathway IP Over Cable Interne
       4134      858      12663         320   CHINANET-BACKBONE
       4766      851       6005         341   Korea Telecom (KIX)
      18101      674        126          53   Reliance Infocom Ltd Internet
       9829      595        450          12   BSNL National Internet Backbo
       4812      562        969          92   China Telecom (Shanghai)
       1221      542       1950         418   Telstra Pty Ltd
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
      
      ARIN Region per AS prefix count summary
      ---------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       7018     1438       5945        1020   AT&T WorldNet Services
       4323     1405       1028         368   Time Warner Telecom
       2386     1386        657         848   AT&T Data Communications Serv
      11492     1211        145          48   Cable One 
       7011     1085        316         619   Citizens Utilities 
      18566     1044        296          10   Covad Communications 
       1785     1001        479         107   AppliedTheory Corporation 
       6197      991        730         478   BellSouth Network Solutions, 
        174      964       6834         807   Cogent Communications
      20115      920        872         510   Charter Communications 
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
      
      RIPE Region per AS prefix count summary
      ---------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       3292      400       1787         364   TDC Tele Danmark
       8452      359        188           7   TEDATA
       3301      337       1443         306   TeliaNet Sweden
       3320      326       7045         270   Deutsche Telekom AG
       5462      292        666          26   Telewest Broadband
       8866      292         78          24   Bulgarian Telecommunication C
       8551      279        267          42   Bezeq International
       3215      278       2671          91   France Telecom Transpac
       6746      267        127         244   Dynamic Network Technologies,
        680      259       2046         258   DFN-IP service G-WiN
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
      
      LACNIC Region per AS prefix count summary
      -----------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       8151     1192       2449         221   UniNet S.A. de C.V. 
      11830      555        299           9   Instituto Costarricense de El
      22047      553        270          14   VTR PUNTO NET S.A. 
       7303      453        220          61   Telecom Argentina Stet-France
      16814      426         27          10   NSS, S.A. 
      11172      409        117          70   Servicios Alestra S.A de C.V 
       6471      401         85          39   ENTEL CHILE S.A. 
      10620      399        104          51   TVCABLE BOGOTA 
      14117      350         23          16   Telefonica del Sur S.A. 
      10481      310        152          10   Prima S.A. 
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
      
      AfriNIC Region per AS prefix count summary
      ------------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
      24863      458         61          27   LINKdotNET AS number
       3741      287        853         223   The Internet Solution 
      20858      217         34           3   EgyNet
       2018      200        272         110   Tertiary Education Network 
       6713      143        135          11   Itissalat Al-MAGHRIB
      33783      131          9          16   EEPAD TISP TELECOM & INTERNET
       5536      121          8          16   Internet Egypt Network
      33776       99          6           7   Starcomms Nigeria Limited
      24835       89         48           7   RAYA Telecom - Egypt
       2905       83        176          74   The Internetworking Company o
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
      
      Global Per AS prefix count summary
      ----------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       6389     2050       3011          98   bellsouth.net, inc. 
      23577     1634         34         700   Korea Telecom (ATM-MPLS)
       4755     1624        387          88   Videsh Sanchar Nigam Ltd. Aut
       7018     1438       5945        1020   AT&T WorldNet Services
       4323     1405       1028         368   Time Warner Telecom
       2386     1386        657         848   AT&T Data Communications Serv
      11492     1211        145          48   Cable One 
       8151     1192       2449         221   UniNet S.A. de C.V. 
       9583     1157        129         191   Sify Limited
       9498     1145        550          61   BHARTI BT INTERNET LTD.
      
      Complete listing at http://thyme.apnic.net/current/data-ASnet
      
      Global Per AS Maximum Aggr summary
      ----------------------------------
      
        ASN   No of nets  Net Savings Description
       4755      1624        1536      Videsh Sanchar Nigam Ltd. Aut
      11492      1211        1163      Cable One 
       9498      1145        1084      BHARTI BT INTERNET LTD.
       4323      1405        1037      Time Warner Telecom
      18566      1044        1034      Covad Communications 
       8151      1192         971      UniNet S.A. de C.V. 
       9583      1157         966      Sify Limited
      17676      1018         952      Softbank BB Corp.
      23577      1634         934      Korea Telecom (ATM-MPLS)
      17488      1010         926      Hathway IP Over Cable Interne
      
      Complete listing at http://thyme.apnic.net/current/data-CIDRnet
      
      List of Unregistered Origin ASNs (Global)
      -----------------------------------------
      
      Bad AS  Designation  Network              Transit AS  Description
      14780   UNALLOCATED   4.79.181.0/24        10310       Yahoo! 
      12180   UNALLOCATED   4.79.248.0/24         1239       Sprint 
      26478   UNALLOCATED   8.7.228.0/24          6461       AboveNet Communicati
      12180   UNALLOCATED   8.10.16.0/24          3549       Global Crossing 
      12180   UNALLOCATED   8.10.58.0/23          3549       Global Crossing 
      14779   UNALLOCATED   8.12.144.0/24        10310       Yahoo! 
      16927   UNALLOCATED   12.0.252.0/23         7018       AT&T WorldNet Servic
      22492   UNALLOCATED   12.2.46.0/24          1239       Sprint 
      15132   UNALLOCATED   12.9.150.0/24          701       UUNET Technologies, 
      32567   UNALLOCATED   12.14.170.0/24        7018       AT&T WorldNet Servic
      
      Complete listing at http://thyme.apnic.net/current/data-badAS
      
      Advertised Unallocated Addresses
      --------------------------------
      
      Network            Origin AS  Description
      24.51.159.0/24        7843     Adelphia Corp. 
      24.54.224.0/19       20001     HoldCo LLC - Road Runner 
      24.75.160.0/19        7843     Adelphia Corp. 
      24.75.192.0/18        7843     Adelphia Corp. 
      24.142.40.0/21        7018     AT&T WorldNet Services
      24.142.160.0/19       7018     AT&T WorldNet Services
      24.246.0.0/17         7018     AT&T WorldNet Services
      24.246.128.0/18       7018     AT&T WorldNet Services
      62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
      63.140.213.0/24      22555     Universal Talkware Corporatio
      
      Complete listing at http://thyme.apnic.net/current/data-add-IANA
      
      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      /11:41      /12:137     
      /13:279     /14:501     /15:1004    /16:9831    /17:4353    /18:7330    
      /19:15307   /20:17626   /21:16834   /22:21410   /23:22378   /24:132287  
      /25:792     /26:902     /27:481     /28:108     /29:9       /30:1       
      /31:0       /32:8       
      
      Advertised prefixes smaller than registry allocations
      -----------------------------------------------------
      
        ASN   No of nets  Total ann.   Description
      11492     1197          1211      Cable One 
       2386     1087          1386      AT&T Data Communications Serv
      18566     1025          1044      Covad Communications 
       9583      994          1157      Sify Limited
       7011      967          1085      Citizens Utilities 
       4755      964          1624      Videsh Sanchar Nigam Ltd. Aut
       6478      898           899      AT&T Worldnet Services 
      17488      823          1010      Hathway IP Over Cable Interne
       9498      817          1145      BHARTI BT INTERNET LTD.
       7018      811          1438      AT&T WorldNet Services
      
      Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
      
      Number of /24s announced per /8 block (Global)
      ----------------------------------------------
      
         4:9         8:102      12:2000     13:1        15:20       16:3      
        17:6        18:13       20:35       24:1049     25:1        32:60     
        33:4        38:409      40:94       41:633      44:2        47:8      
        52:3        55:3        56:3        57:22       58:517      59:435    
        60:405      61:984      62:1088     63:1957     64:3391     65:2382   
        66:3606     67:1126     68:648      69:2128     70:535      71:127    
        72:1568     73:6        74:921      75:222      76:286      77:625    
        78:544      79:137      80:890      81:826      82:605      83:367    
        84:560      85:946      86:396      87:665      88:317      89:1228   
        90:11       91:1159     92:240      93:234      96:23       97:16     
        98:112      99:3       112:1       116:586     117:282     118:110    
       119:370     121:482     122:731     123:313     124:838     125:1109   
       128:317     129:201     130:125     131:404     132:69      133:9      
       134:188     135:32      136:221     137:119     138:149     139:65     
       140:484     141:110     142:380     143:276     144:344     145:50     
       146:338     147:134     148:499     149:180     150:128     151:172    
       152:142     153:127     154:11      155:267     156:207     157:261    
       158:169     159:223     160:244     161:110     162:209     163:195    
       164:574     165:433     166:298     167:315     168:607     169:131    
       170:426     171:28      172:3       189:169     190:1667    192:5774   
       193:4093    194:3256    195:2377    196:1035    198:3769    199:3236   
       200:5590    201:1383    202:7528    203:7830    204:4012    205:2094   
       206:2404    207:2722    208:3237    209:3483    210:2527    211:1034   
       212:1342    213:1660    214:455     215:48      216:4272    217:1233   
       218:359     219:404     220:1069    221:400     222:313    
      
      End of report