[pacnog] 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, sanog at sanog dot org, pacnog at pacnog dot org
  • Subject: [pacnog] Weekly Routing Table Report
  • From: Routing Analysis Role Account <cscora at apnic dot net>
  • Date: Sat, 14 May 2011 04:59:41 +1000 (EST)
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  • Reply-to: pfs@cisco.com
    • Routing Table as seen from APNIC's router in Japan.
      
      The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
      CaribNOG and the RIPE Routing Working Group.
      
      Daily listings are sent to bgp-stats at lists dot apnic dot net
      
      For historical data, please see http://thyme.rand.apnic.net.
      
      If you have any comments please contact Philip Smith <pfs at cisco dot com>.
      
      Routing Table Report   04:00 +10GMT Sat 14 May, 2011
      
      Report Website:     http://thyme.rand.apnic.net
      Detailed Analysis:  http://thyme.rand.apnic.net/current/
      
      Analysis Summary
      ----------------
      
      BGP routing table entries examined:                              356656
          Prefixes after maximum aggregation:                          161598
          Deaggregation factor:                                          2.21
          Unique aggregates announced to Internet:                     176105
      Total ASes present in the Internet Routing Table:                 37552
          Prefixes per ASN:                                              9.50
      Origin-only ASes present in the Internet Routing Table:           31389
      Origin ASes announcing only one prefix:                           15082
      Transit ASes present in the Internet Routing Table:                5092
      Transit-only ASes present in the Internet Routing Table:            136
      Average AS path length visible in the Internet Routing Table:       4.4
          Max AS path length visible:                                      36
          Max AS path prepend of ASN (48687)                               24
      Prefixes from unregistered ASNs in the Routing Table:               626
          Unregistered ASNs in the Routing Table:                         320
      Number of 32-bit ASNs allocated by the RIRs:                       1348
      Number of 32-bit ASNs visible in the Routing Table:                1071
      Prefixes from 32-bit ASNs in the Routing Table:                    2417
      Special use prefixes present in the Routing Table:                    0
      Prefixes being announced from unallocated address space:            156
      Number of addresses announced to Internet:                   2425507776
          Equivalent to 144 /8s, 146 /16s and 79 /24s
          Percentage of available address space announced:               65.4
          Percentage of allocated address space announced:               65.4
          Percentage of available address space allocated:              100.0
          Percentage of address space in use by end-sites:               90.7
      Total number of prefixes smaller than registry allocations:      148116
      
      APNIC Region Analysis Summary
      -----------------------------
      
      Prefixes being announced by APNIC Region ASes:                    89380
          Total APNIC prefixes after maximum aggregation:               29933
          APNIC Deaggregation factor:                                    2.99
      Prefixes being announced from the APNIC address blocks:           85747
          Unique aggregates announced from the APNIC address blocks:    36599
      APNIC Region origin ASes present in the Internet Routing Table:    4441
          APNIC Prefixes per ASN:                                       19.31
      APNIC Region origin ASes announcing only one prefix:               1232
      APNIC Region transit ASes present in the Internet Routing Table:    705
      Average APNIC Region AS path length visible:                        4.6
          Max APNIC Region AS path length visible:                         18
      Number of APNIC region 32-bit ASNs visible in the Routing Table:     47
      Number of APNIC addresses announced to Internet:              614205216
          Equivalent to 36 /8s, 156 /16s and 7 /24s
          Percentage of available APNIC address space announced:         77.9
      
      APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
      (pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079
                             55296-56319, 131072-132095
      APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                              49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                             106/8, 110/8, 111/8, 112/8, 113/8, 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, 133/8, 175/8, 180/8,
                             182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
                             219/8, 220/8, 221/8, 222/8, 223/8,
      
      ARIN Region Analysis Summary
      ----------------------------
      
      Prefixes being announced by ARIN Region ASes:                    140013
          Total ARIN prefixes after maximum aggregation:                71448
          ARIN Deaggregation factor:                                     1.96
      Prefixes being announced from the ARIN address blocks:           112260
          Unique aggregates announced from the ARIN address blocks:     45485
      ARIN Region origin ASes present in the Internet Routing Table:    14368
          ARIN Prefixes per ASN:                                         7.81
      ARIN Region origin ASes announcing only one prefix:                5485
      ARIN Region transit ASes present in the Internet Routing Table:    1497
      Average ARIN Region AS path length visible:                         4.0
          Max ARIN Region AS path length visible:                          23
      Number of ARIN region 32-bit ASNs visible in the Routing Table:      12
      Number of ARIN addresses announced to Internet:               800054528
          Equivalent to 47 /8s, 175 /16s and 221 /24s
          Percentage of available ARIN address space announced:          63.6
      
      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, 46080-47103
                             53248-55295, 393216-394239
      ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                              12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                              20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                              29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                              40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                              53/8,  54/8,  55/8,  56/8,  57/8,  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, 100/8, 104/8, 107/8, 108/8, 173/8,
                             174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
                             208/8, 209/8, 214/8, 215/8, 216/8,
      
      RIPE Region Analysis Summary
      ----------------------------
      
      Prefixes being announced by RIPE Region ASes:                     84162
          Total RIPE prefixes after maximum aggregation:                48126
          RIPE Deaggregation factor:                                     1.75
      Prefixes being announced from the RIPE address blocks:            77641
          Unique aggregates announced from the RIPE address blocks:     51249
      RIPE Region origin ASes present in the Internet Routing Table:    15589
          RIPE Prefixes per ASN:                                         4.98
      RIPE Region origin ASes announcing only one prefix:                7801
      RIPE Region transit ASes present in the Internet Routing Table:    2460
      Average RIPE Region AS path length visible:                         4.7
          Max RIPE Region AS path length visible:                          36
      Number of RIPE region 32-bit ASNs visible in the Routing Table:     790
      Number of RIPE addresses announced to Internet:               468684800
          Equivalent to 27 /8s, 239 /16s and 144 /24s
          Percentage of available RIPE address space announced:          75.5
      
      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, 47104-52223, 56320-58367
                             196608-198655
      RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                              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, 109/8,
                             176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
                             213/8, 217/8,
      
      LACNIC Region Analysis Summary
      ------------------------------
      
      Prefixes being announced by LACNIC Region ASes:                   32698
          Total LACNIC prefixes after maximum aggregation:               7496
          LACNIC Deaggregation factor:                                   4.36
      Prefixes being announced from the LACNIC address blocks:          31756
          Unique aggregates announced from the LACNIC address blocks:   16683
      LACNIC Region origin ASes present in the Internet Routing Table:   1449
          LACNIC Prefixes per ASN:                                      21.92
      LACNIC Region origin ASes announcing only one prefix:               427
      LACNIC Region transit ASes present in the Internet Routing Table:   268
      Average LACNIC Region AS path length visible:                       4.4
          Max LACNIC Region AS path length visible:                        19
      Number of LACNIC region 32-bit ASNs visible in the Routing Table:   217
      Number of LACNIC addresses announced to Internet:              83360256
          Equivalent to 4 /8s, 247 /16s and 250 /24s
          Percentage of available LACNIC address space announced:        55.2
      
      LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                             262144-263167 plus ERX transfers
      LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                             200/8, 201/8,
      
      AfriNIC Region Analysis Summary
      -------------------------------
      
      Prefixes being announced by AfriNIC Region ASes:                   7770
          Total AfriNIC prefixes after maximum aggregation:              1867
          AfriNIC Deaggregation factor:                                  4.16
      Prefixes being announced from the AfriNIC address blocks:          6122
          Unique aggregates announced from the AfriNIC address blocks:   1939
      AfriNIC Region origin ASes present in the Internet Routing Table:   447
          AfriNIC Prefixes per ASN:                                     13.70
      AfriNIC Region origin ASes announcing only one prefix:              137
      AfriNIC Region transit ASes present in the Internet Routing Table:   97
      Average AfriNIC Region AS path length visible:                      4.8
          Max AfriNIC Region AS path length visible:                       24
      Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    5
      Number of AfriNIC addresses announced to Internet:             23095040
          Equivalent to 1 /8s, 96 /16s and 103 /24s
          Percentage of available AfriNIC address space announced:       34.4
      
      AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
      AfriNIC Address Blocks  41/8, 102/8, 105/8, 197/8,
      
      APNIC Region per AS prefix count summary
      ----------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       4766     2452       9493         916   Korea Telecom (KIX)
      17974     1834        516          32   PT TELEKOMUNIKASI INDONESIA
       7545     1549        301          87   TPG Internet Pty Ltd
       4755     1461        634         167   TATA Communications formerly 
      24560     1151        336         184   Bharti Airtel Ltd., Telemedia
       7552     1105       1064           7   Vietel Corporation
       9583     1079         80         510   Sify Limited
       4808     1063       2130         297   CNCGROUP IP network: China169
       9829     1039        874          51   BSNL National Internet Backbo
      17488      935        165         103   Hathway IP Over Cable Interne
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
      
      ARIN Region per AS prefix count summary
      ---------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       6389     3647       3822         255   bellsouth.net, inc. 
       4323     1979       1081         396   Time Warner Telecom
      18566     1822        357         232   Covad Communications 
       1785     1775        681         124   PaeTec Communications, Inc.
       6478     1678        314          50   AT&T Worldnet Services 
      20115     1535       1539         631   Charter Communications 
      19262     1499       4949         299   Verizon Global Networks 
       7018     1357       6911         886   AT&T WorldNet Services
      22773     1329       2897          87   Cox Communications, Inc.
      11492     1279        240          15   Cable One 
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
      
      RIPE Region per AS prefix count summary
      ---------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       6830      519       1780         321   UPC Distribution Services
      34984      512        106         182   BILISIM TELEKOM
       3292      459       1998         392   TDC Tele Danmark
      20940      447        131         342   Akamai Technologies European 
       8866      442        134          26   Bulgarian Telecommunication C
      29049      442         32          44   AzerSat LLC.
      12479      430        577           6   Uni2 Autonomous System
       3320      420       7608         367   Deutsche Telekom AG
       8551      406        355          45   Bezeq International
        702      397       1802         310   UUNET - Commercial IP service
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
      
      LACNIC Region per AS prefix count summary
      -----------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
      10620     1476        272         154   TVCABLE BOGOTA 
       8151     1370       2702         362   UniNet S.A. de C.V. 
      28573     1315        990          86   NET Servicos de Comunicao S.A
       7303      931        470         152   Telecom Argentina Stet-France
       6503      732        354          73   AVANTEL, S.A. 
      14420      667         54          91   CORPORACION NACIONAL DE TELEC
      22047      555        310          15   VTR PUNTO NET S.A. 
       3816      521        227         100   Empresa Nacional de Telecomun
      13489      499        241         121   Orbitel S.A. E.S.P. 
      11172      493         84          83   Servicios Alestra S.A de C.V 
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
      
      AfriNIC Region per AS prefix count summary
      ------------------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       8452      888        445          11   TEDATA
      24863      782        147          37   LINKdotNET AS number
      15475      415         90           8   Nile Online
      36992      288        331          17   Etisalat MISR
       3741      268        985         228   The Internet Solution 
       6713      241        215          13   Itissalat Al-MAGHRIB
      24835      206         78          10   RAYA Telecom - Egypt
      33776      200         12          11   Starcomms Nigeria Limited
      29571      162         17          11   Ci Telecom Autonomous system 
      16637      150        441          86   MTN Network Solutions
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
      
      Global Per AS prefix count summary
      ----------------------------------
      
        ASN   No of nets  /20 equiv  MaxAgg  Description
       6389     3647       3822         255   bellsouth.net, inc. 
       4766     2452       9493         916   Korea Telecom (KIX)
      23456     2417        685        1317   32-bit ASN transition
       4323     1979       1081         396   Time Warner Telecom
      17974     1834        516          32   PT TELEKOMUNIKASI INDONESIA
      18566     1822        357         232   Covad Communications 
       1785     1775        681         124   PaeTec Communications, Inc.
       6478     1678        314          50   AT&T Worldnet Services 
       7545     1549        301          87   TPG Internet Pty Ltd
      20115     1535       1539         631   Charter Communications 
      
      Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
      
      Global Per AS Maximum Aggr summary
      ----------------------------------
      
        ASN   No of nets  Net Savings Description
      17974      1834        1802      PT TELEKOMUNIKASI INDONESIA
       1785      1775        1651      PaeTec Communications, Inc.
       6478      1678        1628      AT&T Worldnet Services 
      18566      1822        1590      Covad Communications 
       4323      1979        1583      Time Warner Telecom
       4766      2452        1536      Korea Telecom (KIX)
       7545      1549        1462      TPG Internet Pty Ltd
      10620      1476        1322      TVCABLE BOGOTA 
       4755      1461        1294      TATA Communications formerly 
      11492      1279        1264      Cable One 
      
      Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
      
      List of Unregistered Origin ASNs (Global)
      -----------------------------------------
      
      Bad AS  Designation  Network              Transit AS  Description
      15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
      32567   UNALLOCATED  12.14.170.0/24        4323       Time Warner Telecom
      32567   UNALLOCATED  12.25.107.0/24        4323       Time Warner Telecom
      26973   UNALLOCATED  12.39.152.0/24        7018       AT&T WorldNet Servic
      26973   UNALLOCATED  12.39.154.0/23        7018       AT&T WorldNet Servic
      26973   UNALLOCATED  12.39.155.0/24        7018       AT&T WorldNet Servic
      26973   UNALLOCATED  12.39.159.0/24        7018       AT&T WorldNet Servic
      25639   UNALLOCATED  12.41.169.0/24        7018       AT&T WorldNet Servic
      13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
      23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
      
      Complete listing at http://thyme.rand.apnic.net/current/data-badAS
      
      Advertised Unallocated Addresses
      --------------------------------
      
      Network            Origin AS  Description
      24.225.128.0/18      36377     Comcast Telecommunications, I
      24.225.192.0/23      36377     Comcast Telecommunications, I
      24.225.192.0/18      36377     Comcast Telecommunications, I
      24.225.224.0/21      36377     Comcast Telecommunications, I
      24.225.237.0/24      36377     Comcast Telecommunications, I
      24.225.248.0/21      36377     Comcast Telecommunications, I
      31.134.128.0/18      42668     RIPE Network Coordination Cen
      31.220.160.0/19      29072     RDTC Autonomous System ISP at
      31.222.96.0/22       29119     ServiHosting Autonomous Syste
      31.222.100.0/22      29119     ServiHosting Autonomous Syste
      
      Complete listing at http://thyme.rand.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        /8:20       /9:12      /10:28      /11:78      /12:223     
      /13:459     /14:790     /15:1390    /16:11723   /17:5766    /18:9707    
      /19:19307   /20:25552   /21:25796   /22:34071   /23:32878   /24:185607  
      /25:1092    /26:1271    /27:709     /28:161     /29:8       /30:2       
      /31:0       /32:6       
      
      Advertised prefixes smaller than registry allocations
      -----------------------------------------------------
      
        ASN   No of nets  Total ann.   Description
       6389     2247          3647      bellsouth.net, inc. 
      18566     1784          1822      Covad Communications 
       6478     1632          1678      AT&T Worldnet Services 
      10620     1366          1476      TVCABLE BOGOTA 
      11492     1225          1279      Cable One 
      23456     1188          2417      32-bit ASN transition
       7011     1062          1162      Citizens Utilities 
       1785     1050          1775      PaeTec Communications, Inc.
       4323      888          1979      Time Warner Telecom
      22773      846          1329      Cox Communications, Inc.
      
      Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
      
      Number of /24s announced per /8 block (Global)
      ----------------------------------------------
      
         1:267       2:44        4:14        5:1         6:3         8:352    
        12:1985     13:1        14:456      15:15       16:3        17:8      
        20:10       23:7        24:1639     27:743      31:328      32:60     
        33:4        34:2        37:1        38:731      40:101      41:2501   
        42:5        44:3        46:903      47:4        49:177      50:401    
        52:13       55:6        56:2        57:30       58:848      59:485    
        60:387      61:1254     62:974      63:1925     64:3928     65:2299   
        66:4140     67:1866     68:1093     69:2986     70:706      71:350    
        72:1884     73:1        74:2345     75:306      76:342      77:865    
        78:689      79:463      80:1096     81:817      82:493      83:449    
        84:625      85:1071     86:598      87:746      88:325      89:1566   
        90:202      91:3732     92:512      93:1054     94:1251     95:803    
        96:483      97:246      98:828      99:35      101:59      103:12     
       106:1       107:6       108:85      109:944     110:585     111:711    
       112:319     113:399     114:532     115:666     116:954     117:683    
       118:818     119:1135    120:309     121:678     122:1621    123:1079   
       124:1257    125:1223    128:259     129:166     130:165     131:568    
       132:110     133:19      134:218     135:49      136:214     137:143    
       138:304     139:106     140:480     141:240     142:401     143:402    
       144:487     145:53      146:440     147:210     148:591     149:243    
       150:171     151:187     152:310     153:179     154:3       155:395    
       156:194     157:352     158:131     159:387     160:315     161:207    
       162:279     163:163     164:499     165:352     166:514     167:431    
       168:725     169:153     170:794     171:77      172:1       173:1557   
       174:543     175:370     177:120     178:908     180:840     181:16     
       182:439     183:205     184:262     185:1       186:1169    187:749    
       188:829     189:907     190:4793    192:5783    193:4843    194:3477   
       195:2973    196:1209    197:17      198:3570    199:3893    200:5535   
       201:1494    202:8359    203:8467    204:4111    205:2328    206:2725   
       207:2913    208:3966    209:3423    210:2731    211:1386    212:1973   
       213:1717    214:730     215:69      216:4818    217:1630    218:565    
       219:370     220:1203    221:483     222:342     223:145    
      
      End of report