[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, 7 May 2011 05:00:30 +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 07 May, 2011
      
      Report Website:     http://thyme.rand.apnic.net
      Detailed Analysis:  http://thyme.rand.apnic.net/current/
      
      Analysis Summary
      ----------------
      
      BGP routing table entries examined:                              356623
          Prefixes after maximum aggregation:                          161219
          Deaggregation factor:                                          2.21
          Unique aggregates announced to Internet:                     176188
      Total ASes present in the Internet Routing Table:                 37501
          Prefixes per ASN:                                              9.51
      Origin-only ASes present in the Internet Routing Table:           31368
      Origin ASes announcing only one prefix:                           15102
      Transit ASes present in the Internet Routing Table:                5082
      Transit-only ASes present in the Internet Routing Table:            139
      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:               592
          Unregistered ASNs in the Routing Table:                         299
      Number of 32-bit ASNs allocated by the RIRs:                       1333
      Number of 32-bit ASNs visible in the Routing Table:                1051
      Prefixes from 32-bit ASNs in the Routing Table:                    2383
      Special use prefixes present in the Routing Table:                    0
      Prefixes being announced from unallocated address space:            147
      Number of addresses announced to Internet:                   2423268544
          Equivalent to 144 /8s, 112 /16s and 36 /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:      148140
      
      APNIC Region Analysis Summary
      -----------------------------
      
      Prefixes being announced by APNIC Region ASes:                    89329
          Total APNIC prefixes after maximum aggregation:               29919
          APNIC Deaggregation factor:                                    2.99
      Prefixes being announced from the APNIC address blocks:           85712
          Unique aggregates announced from the APNIC address blocks:    36913
      APNIC Region origin ASes present in the Internet Routing Table:    4437
          APNIC Prefixes per ASN:                                       19.32
      APNIC Region origin ASes announcing only one prefix:               1235
      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:                         18
      Number of APNIC region 32-bit ASNs visible in the Routing Table:     48
      Number of APNIC addresses announced to Internet:              612912416
          Equivalent to 36 /8s, 136 /16s and 77 /24s
          Percentage of available APNIC address space announced:         77.7
      
      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:                    140234
          Total ARIN prefixes after maximum aggregation:                71250
          ARIN Deaggregation factor:                                     1.97
      Prefixes being announced from the ARIN address blocks:           112594
          Unique aggregates announced from the ARIN address blocks:     45335
      ARIN Region origin ASes present in the Internet Routing Table:    14357
          ARIN Prefixes per ASN:                                         7.84
      ARIN Region origin ASes announcing only one prefix:                5492
      ARIN Region transit ASes present in the Internet Routing Table:    1499
      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:               800024832
          Equivalent to 47 /8s, 175 /16s and 105 /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:                     83935
          Total RIPE prefixes after maximum aggregation:                48029
          RIPE Deaggregation factor:                                     1.75
      Prefixes being announced from the RIPE address blocks:            77374
          Unique aggregates announced from the RIPE address blocks:     51246
      RIPE Region origin ASes present in the Internet Routing Table:    15569
          RIPE Prefixes per ASN:                                         4.97
      RIPE Region origin ASes announcing only one prefix:                7811
      RIPE Region transit ASes present in the Internet Routing Table:    2452
      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:     777
      Number of RIPE addresses announced to Internet:               468167936
          Equivalent to 27 /8s, 231 /16s and 173 /24s
          Percentage of available RIPE address space announced:          75.4
      
      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:                   32749
          Total LACNIC prefixes after maximum aggregation:               7494
          LACNIC Deaggregation factor:                                   4.37
      Prefixes being announced from the LACNIC address blocks:          31794
          Unique aggregates announced from the LACNIC address blocks:   16628
      LACNIC Region origin ASes present in the Internet Routing Table:   1450
          LACNIC Prefixes per ASN:                                      21.93
      LACNIC Region origin ASes announcing only one prefix:               430
      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:   209
      Number of LACNIC addresses announced to Internet:              83079680
          Equivalent to 4 /8s, 243 /16s and 178 /24s
          Percentage of available LACNIC address space announced:        55.0
      
      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:                   7778
          Total AfriNIC prefixes after maximum aggregation:              1857
          AfriNIC Deaggregation factor:                                  4.19
      Prefixes being announced from the AfriNIC address blocks:          6135
          Unique aggregates announced from the AfriNIC address blocks:   1917
      AfriNIC Region origin ASes present in the Internet Routing Table:   447
          AfriNIC Prefixes per ASN:                                     13.72
      AfriNIC Region origin ASes announcing only one prefix:              134
      AfriNIC Region transit ASes present in the Internet Routing Table:   97
      Average AfriNIC Region AS path length visible:                      4.7
          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:             23038208
          Equivalent to 1 /8s, 95 /16s and 137 /24s
          Percentage of available AfriNIC address space announced:       34.3
      
      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     2436       9490         906   Korea Telecom (KIX)
      17974     1813        515          29   PT TELEKOMUNIKASI INDONESIA
       7545     1565        301          86   TPG Internet Pty Ltd
       4755     1461        634         167   TATA Communications formerly 
       7552     1204       1064           7   Vietel Corporation
      24560     1151        336         184   Bharti Airtel Ltd., Telemedia
       9583     1057         77         492   Sify Limited
       9829     1039        874          51   BSNL National Internet Backbo
       4808     1036       2087         294   CNCGROUP IP network: China169
      17488      938        164         100   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     3644       3822         258   bellsouth.net, inc. 
       4323     2582       1087         399   Time Warner Telecom
       1785     1785        681         127   PaeTec Communications, Inc.
      18566     1782        354         219   Covad Communications 
       6478     1667        313          52   AT&T Worldnet Services 
      20115     1531       1536         636   Charter Communications 
      19262     1496       4949         298   Verizon Global Networks 
       7018     1359       6927         887   AT&T WorldNet Services
      22773     1329       2897          87   Cox Communications, Inc.
       2386     1265        536         908   AT&T Data Communications Serv
      
      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      508        106         184   BILISIM TELEKOM
       3292      457       1997         391   TDC Tele Danmark
      20940      446        131         342   Akamai Technologies European 
       8866      444        134          26   Bulgarian Telecommunication C
      29049      443         33          43   AzerSat LLC.
       3320      423       7609         368   Deutsche Telekom AG
      12479      419        577           6   Uni2 Autonomous System
       8551      406        355          45   Bezeq International
       8402      401        320          11   Corbina telecom
      
      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     1458        270         155   TVCABLE BOGOTA 
       8151     1366       2698         364   UniNet S.A. de C.V. 
      28573     1298        990          89   NET Servicos de Comunicao S.A
       7303      926        467         149   Telecom Argentina Stet-France
       6503      801        354          73   AVANTEL, S.A. 
      14420      665         53          91   CORPORACION NACIONAL DE TELEC
      22047      557        310          15   VTR PUNTO NET S.A. 
       3816      518        226          99   Empresa Nacional de Telecomun
      11172      495         84          83   Servicios Alestra S.A de C.V 
      13489      487        233         116   Orbitel S.A. E.S.P. 
      
      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      881        445          11   TEDATA
      24863      782        147          37   LINKdotNET AS number
      15475      421         90           8   Nile Online
      36992      287        331          17   Etisalat MISR
       3741      267        985         227   The Internet Solution 
       6713      240        215          13   Itissalat Al-MAGHRIB
      33776      214         12          11   Starcomms Nigeria Limited
      24835      209         78          10   RAYA Telecom - Egypt
      29571      161         17          11   Ci Telecom Autonomous system 
      16637      149        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     3644       3822         258   bellsouth.net, inc. 
       4323     2582       1087         399   Time Warner Telecom
       4766     2436       9490         906   Korea Telecom (KIX)
      23456     2383        666        1288   32-bit ASN transition
      17974     1813        515          29   PT TELEKOMUNIKASI INDONESIA
       1785     1785        681         127   PaeTec Communications, Inc.
      18566     1782        354         219   Covad Communications 
       6478     1667        313          52   AT&T Worldnet Services 
       7545     1565        301          86   TPG Internet Pty Ltd
      20115     1531       1536         636   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
       4323      2582        2183      Time Warner Telecom
      17974      1813        1784      PT TELEKOMUNIKASI INDONESIA
       1785      1785        1658      PaeTec Communications, Inc.
       6478      1667        1615      AT&T Worldnet Services 
      18566      1782        1563      Covad Communications 
       4766      2436        1530      Korea Telecom (KIX)
       7545      1565        1479      TPG Internet Pty Ltd
      10620      1458        1303      TVCABLE BOGOTA 
       4755      1461        1294      TATA Communications formerly 
      11492      1262        1247      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
      31.210.248.0/21      35706     Net at Once
      41.222.79.0/24       36938     >>UNKNOWN<<
      41.223.92.0/22       36936     >>UNKNOWN<<
      45.127.0.0/16        13767     NetworkTwo Communications Gro
      
      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     
      /13:458     /14:790     /15:1389    /16:11689   /17:5747    /18:9693    
      /19:19273   /20:25574   /21:25731   /22:33992   /23:32787   /24:185889  
      /25:1096    /26:1273    /27:707     /28:158     /29:8       /30:2       
      /31:0       /32:6       
      
      Advertised prefixes smaller than registry allocations
      -----------------------------------------------------
      
        ASN   No of nets  Total ann.   Description
       6389     2245          3644      bellsouth.net, inc. 
      18566     1744          1782      Covad Communications 
       6478     1621          1667      AT&T Worldnet Services 
      10620     1348          1458      TVCABLE BOGOTA 
       4323     1289          2582      Time Warner Telecom
      11492     1211          1262      Cable One 
      23456     1182          2383      32-bit ASN transition
       7011     1062          1162      Citizens Utilities 
       1785     1054          1785      PaeTec Communications, Inc.
      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)
      ----------------------------------------------
      
         1:265       2:61        4:14        5:1         6:3         8:353    
        12:1992     13:1        14:452      15:15       16:3        17:8      
        20:10       23:6        24:1627     27:734      31:296      32:63     
        33:3        34:2        37:1        38:765      40:101      41:2485   
        42:4        44:3        46:906      47:4        49:172      50:388    
        52:13       55:4        56:2        57:30       58:843      59:482    
        60:387      61:1254     62:995      63:1926     64:3927     65:2308   
        66:4319     67:1873     68:1079     69:2966     70:699      71:346    
        72:1884     73:1        74:2339     75:299      76:338      77:838    
        78:688      79:454      80:1079     81:813      82:494      83:446    
        84:630      85:1076     86:577      87:747      88:323      89:1596   
        90:192      91:3707     92:511      93:1062     94:1266     95:804    
        96:482      97:255      98:823      99:35      101:69      103:9      
       107:6       108:85      109:946     110:583     111:710     112:318    
       113:399     114:532     115:657     116:949     117:678     118:818    
       119:1143    120:305     121:672     122:1619    123:1080    124:1254   
       125:1221    128:259     129:163     130:165     131:564     132:109    
       133:19      134:217     135:49      136:214     137:143     138:302    
       139:105     140:480     141:239     142:400     143:398     144:486    
       145:50      146:436     147:210     148:595     149:243     150:171    
       151:187     152:310     153:179     154:3       155:396     156:190    
       157:352     158:130     159:384     160:315     161:205     162:279    
       163:164     164:498     165:349     166:513     167:426     168:699    
       169:153     170:784     171:77      172:1       173:1538    174:538    
       175:373     177:119     178:859     180:818     181:19      182:434    
       183:208     184:260     185:1       186:1153    187:800     188:847    
       189:941     190:4853    192:5792    193:4827    194:3466    195:2966   
       196:1201    197:16      198:3564    199:3921    200:5526    201:1504   
       202:8357    203:8448    204:4137    205:2327    206:2747    207:3038   
       208:3960    209:3481    210:2721    211:1372    212:1978    213:1718   
       214:721     215:64      216:4893    217:1657    218:565     219:371    
       220:1204    221:484     222:342     223:146    
      
      End of report