[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, 21 May 2011 04:59:34 +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 21 May, 2011
      
      Report Website:     http://thyme.rand.apnic.net
      Detailed Analysis:  http://thyme.rand.apnic.net/current/
      
      Analysis Summary
      ----------------
      
      BGP routing table entries examined:                              357743
          Prefixes after maximum aggregation:                          161995
          Deaggregation factor:                                          2.21
          Unique aggregates announced to Internet:                     176757
      Total ASes present in the Internet Routing Table:                 37632
          Prefixes per ASN:                                              9.51
      Origin-only ASes present in the Internet Routing Table:           31443
      Origin ASes announcing only one prefix:                           15107
      Transit ASes present in the Internet Routing Table:                5101
      Transit-only ASes present in the Internet Routing Table:            135
      Average AS path length visible in the Internet Routing Table:       4.3
          Max AS path length visible:                                      36
          Max AS path prepend of ASN (48687)                               24
      Prefixes from unregistered ASNs in the Routing Table:               647
          Unregistered ASNs in the Routing Table:                         338
      Number of 32-bit ASNs allocated by the RIRs:                       1366
      Number of 32-bit ASNs visible in the Routing Table:                1088
      Prefixes from 32-bit ASNs in the Routing Table:                    2459
      Special use prefixes present in the Routing Table:                    0
      Prefixes being announced from unallocated address space:            166
      Number of addresses announced to Internet:                   2432900032
          Equivalent to 145 /8s, 3 /16s and 27 /24s
          Percentage of available address space announced:               65.6
          Percentage of allocated address space announced:               65.6
          Percentage of available address space allocated:              100.0
          Percentage of address space in use by end-sites:               90.9
      Total number of prefixes smaller than registry allocations:      148733
      
      APNIC Region Analysis Summary
      -----------------------------
      
      Prefixes being announced by APNIC Region ASes:                    89422
          Total APNIC prefixes after maximum aggregation:               30028
          APNIC Deaggregation factor:                                    2.98
      Prefixes being announced from the APNIC address blocks:           85798
          Unique aggregates announced from the APNIC address blocks:    36687
      APNIC Region origin ASes present in the Internet Routing Table:    4453
          APNIC Prefixes per ASN:                                       19.27
      APNIC Region origin ASes announcing only one prefix:               1236
      APNIC Region transit ASes present in the Internet Routing Table:    707
      Average APNIC Region AS path length visible:                        4.6
          Max APNIC Region AS path length visible:                         21
      Number of APNIC region 32-bit ASNs visible in the Routing Table:     46
      Number of APNIC addresses announced to Internet:              615312672
          Equivalent to 36 /8s, 172 /16s and 237 /24s
          Percentage of available APNIC address space announced:         78.0
      
      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:                    140448
          Total ARIN prefixes after maximum aggregation:                71554
          ARIN Deaggregation factor:                                     1.96
      Prefixes being announced from the ARIN address blocks:           112638
          Unique aggregates announced from the ARIN address blocks:     45620
      ARIN Region origin ASes present in the Internet Routing Table:    14381
          ARIN Prefixes per ASN:                                         7.83
      ARIN Region origin ASes announcing only one prefix:                5494
      ARIN Region transit ASes present in the Internet Routing Table:    1498
      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:               801671424
          Equivalent to 47 /8s, 200 /16s and 137 /24s
          Percentage of available ARIN address space announced:          63.7
      
      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:                     84534
          Total RIPE prefixes after maximum aggregation:                48247
          RIPE Deaggregation factor:                                     1.75
      Prefixes being announced from the RIPE address blocks:            78018
          Unique aggregates announced from the RIPE address blocks:     51632
      RIPE Region origin ASes present in the Internet Routing Table:    15619
          RIPE Prefixes per ASN:                                         5.00
      RIPE Region origin ASes announcing only one prefix:                7813
      RIPE Region transit ASes present in the Internet Routing Table:    2464
      Average RIPE Region AS path length visible:                         4.6
          Max RIPE Region AS path length visible:                          36
      Number of RIPE region 32-bit ASNs visible in the Routing Table:     805
      Number of RIPE addresses announced to Internet:               472636160
          Equivalent to 28 /8s, 43 /16s and 219 /24s
          Percentage of available RIPE address space announced:          76.1
      
      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:                   32829
          Total LACNIC prefixes after maximum aggregation:               7512
          LACNIC Deaggregation factor:                                   4.37
      Prefixes being announced from the LACNIC address blocks:          31866
          Unique aggregates announced from the LACNIC address blocks:   16758
      LACNIC Region origin ASes present in the Internet Routing Table:   1456
          LACNIC Prefixes per ASN:                                      21.89
      LACNIC Region origin ASes announcing only one prefix:               431
      LACNIC Region transit ASes present in the Internet Routing Table:   266
      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:   220
      Number of LACNIC addresses announced to Internet:              83532288
          Equivalent to 4 /8s, 250 /16s and 154 /24s
          Percentage of available LACNIC address space announced:        55.3
      
      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:                   7836
          Total AfriNIC prefixes after maximum aggregation:              1877
          AfriNIC Deaggregation factor:                                  4.17
      Prefixes being announced from the AfriNIC address blocks:          6175
          Unique aggregates announced from the AfriNIC address blocks:   1909
      AfriNIC Region origin ASes present in the Internet Routing Table:   448
          AfriNIC Prefixes per ASN:                                     13.78
      AfriNIC Region origin ASes announcing only one prefix:              133
      AfriNIC Region transit ASes present in the Internet Routing Table:  100
      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:             23174656
          Equivalent to 1 /8s, 97 /16s and 158 /24s
          Percentage of available AfriNIC address space announced:       34.5
      
      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     2457       9494         918   Korea Telecom (KIX)
      17974     1832        516          32   PT TELEKOMUNIKASI INDONESIA
       7545     1556        301          87   TPG Internet Pty Ltd
       4755     1472        635         169   TATA Communications formerly 
      24560     1153        336         184   Bharti Airtel Ltd., Telemedia
       7552     1123       1064           7   Vietel Corporation
       9583     1082         81         511   Sify Limited
       4808     1080       2141         298   CNCGROUP IP network: China169
       9829     1039        874          51   BSNL National Internet Backbo
      18101      935        116         142   Reliance Infocom Ltd Internet
      
      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     3645       3822         255   bellsouth.net, inc. 
       4323     1976       1081         397   Time Warner Telecom
      18566     1860        354         267   Covad Communications 
       1785     1786        681         123   PaeTec Communications, Inc.
       6478     1693        315          55   AT&T Worldnet Services 
      20115     1538       1540         635   Charter Communications 
      19262     1496       4943         300   Verizon Global Networks 
       7018     1365       7069         890   AT&T WorldNet Services
      22773     1330       2897          88   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      520       1780         321   UPC Distribution Services
      34984      514        106         182   BILISIM TELEKOM
       3292      460       2062         395   TDC Tele Danmark
      20940      457        134         351   Akamai Technologies European 
      29049      453         33          44   AzerSat LLC.
       8866      444        134          26   Bulgarian Telecommunication C
      12479      432        577           6   Uni2 Autonomous System
       3320      426       8153         371   Deutsche Telekom AG
       8551      406        355          45   Bezeq International
        702      395       1802         309   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     1481        273         154   TVCABLE BOGOTA 
       8151     1375       2702         362   UniNet S.A. de C.V. 
      28573     1314        991          86   NET Servicos de Comunicao S.A
       7303      925        470         151   Telecom Argentina Stet-France
       6503      731        354          73   AVANTEL, S.A. 
      14420      670         54          91   CORPORACION NACIONAL DE TELEC
      22047      563        310          15   VTR PUNTO NET S.A. 
       3816      522        227         101   Empresa Nacional de Telecomun
      13489      511        254         124   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      894        445          11   TEDATA
      24863      787        147          37   LINKdotNET AS number
      15475      415         90           8   Nile Online
      36992      287        331          17   Etisalat MISR
       3741      268        985         228   The Internet Solution 
       6713      241        215          13   Itissalat Al-MAGHRIB
      33776      217         12          11   Starcomms Nigeria Limited
      24835      208         78          10   RAYA Telecom - Egypt
      29571      163         19          12   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     3645       3822         255   bellsouth.net, inc. 
      23456     2459        631        1341   32-bit ASN transition
       4766     2457       9494         918   Korea Telecom (KIX)
       4323     1976       1081         397   Time Warner Telecom
      18566     1860        354         267   Covad Communications 
      17974     1832        516          32   PT TELEKOMUNIKASI INDONESIA
       1785     1786        681         123   PaeTec Communications, Inc.
       6478     1693        315          55   AT&T Worldnet Services 
       7545     1556        301          87   TPG Internet Pty Ltd
      20115     1538       1540         635   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      1832        1800      PT TELEKOMUNIKASI INDONESIA
       1785      1786        1663      PaeTec Communications, Inc.
       6478      1693        1638      AT&T Worldnet Services 
      18566      1860        1593      Covad Communications 
       4323      1976        1579      Time Warner Telecom
       4766      2457        1539      Korea Telecom (KIX)
       7545      1556        1469      TPG Internet Pty Ltd
      10620      1481        1327      TVCABLE BOGOTA 
       4755      1472        1303      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
      27.0.128.0/17         7514     Media Exchange, Inc.
      41.190.32.0/23       31856     CABSAS
      41.190.34.0/23       31856     CABSAS
      41.190.36.0/23       31856     CABSAS
      
      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      /11:79      /12:226     
      /13:461     /14:793     /15:1393    /16:11769   /17:5810    /18:9731    
      /19:19329   /20:25643   /21:25885   /22:34217   /23:32989   /24:186103  
      /25:1087    /26:1274    /27:713     /28:165     /29:8       /30:2       
      /31:0       /32:6       
      
      Advertised prefixes smaller than registry allocations
      -----------------------------------------------------
      
        ASN   No of nets  Total ann.   Description
       6389     2245          3645      bellsouth.net, inc. 
      18566     1824          1860      Covad Communications 
       6478     1647          1693      AT&T Worldnet Services 
      10620     1371          1481      TVCABLE BOGOTA 
      11492     1225          1279      Cable One 
      23456     1204          2459      32-bit ASN transition
       7011     1060          1159      Citizens Utilities 
       1785     1051          1786      PaeTec Communications, Inc.
       4323      886          1976      Time Warner Telecom
      22773      846          1330      Cox Communications, Inc.
      
      Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
      
      Number of /24s announced per /8 block (Global)
      ----------------------------------------------
      
         1:279       2:39        4:14        5:1         6:3         8:352    
        12:1985     13:1        14:457      15:15       16:3        17:8      
        20:10       23:7        24:1633     27:753      31:345      32:60     
        33:4        34:2        37:1        38:738      40:101      41:2537   
        42:5        44:3        46:920      47:4        49:194      50:415    
        52:13       55:3        56:2        57:30       58:844      59:481    
        60:387      61:1235     62:960      63:1935     64:3941     65:2292   
        66:4158     67:1846     68:1092     69:2985     70:704      71:352    
        72:1883     73:1        74:2351     75:303      76:340      77:870    
        78:709      79:464      80:1094     81:821      82:490      83:447    
        84:629      85:1069     86:594      87:749      88:328      89:1556   
        90:204      91:3771     92:516      93:1053     94:1279     95:817    
        96:504      97:249      98:835      99:35      101:60      103:12     
       106:1       107:7       108:85      109:950     110:601     111:715    
       112:302     113:401     114:534     115:667     116:956     117:691    
       118:821     119:1145    120:308     121:677     122:1627    123:1001   
       124:1265    125:1228    128:262     129:176     130:164     131:573    
       132:109     133:19      134:218     135:48      136:215     137:143    
       138:305     139:112     140:487     141:239     142:402     143:402    
       144:481     145:54      146:444     147:209     148:589     149:243    
       150:172     151:186     152:306     153:178     154:3       155:396    
       156:194     157:352     158:135     159:387     160:317     161:207    
       162:279     163:163     164:501     165:354     166:516     167:433    
       168:729     169:152     170:794     171:77      172:1       173:1566   
       174:551     175:374     177:128     178:918     180:844     181:17     
       182:446     183:207     184:272     185:1       186:1164    187:735    
       188:842     189:897     190:4805    192:5790    193:4854    194:3482   
       195:2982    196:1210    197:19      198:3584    199:3908    200:5540   
       201:1486    202:8357    203:8427    204:4158    205:2326    206:2730   
       207:2913    208:3964    209:3462    210:2736    211:1392    212:1972   
       213:1734    214:735     215:71      216:4899    217:1623    218:563    
       219:362     220:1200    221:483     222:336     223:148    
      
      End of report