[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, sanog at sanog dot org, pacnog at pacnog dot org
  • Subject: [apops] Weekly Routing Table Report
  • From: Routing Analysis Role Account <cscora at apnic dot net>
  • Date: Sat, 16 Apr 2011 04:40:28 +1000 (EST)
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    • 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 16 Apr, 2011
      
      Report Website:     http://thyme.rand.apnic.net
      Detailed Analysis:  http://thyme.rand.apnic.net/current/
      
      Analysis Summary
      ----------------
      
      BGP routing table entries examined:                              354448
          Prefixes after maximum aggregation:                          160446
          Deaggregation factor:                                          2.21
          Unique aggregates announced to Internet:                     175187
      Total ASes present in the Internet Routing Table:                 37330
          Prefixes per ASN:                                              9.49
      Origin-only ASes present in the Internet Routing Table:           31290
      Origin ASes announcing only one prefix:                           15055
      Transit ASes present in the Internet Routing Table:                5039
      Transit-only ASes present in the Internet Routing Table:            133
      Average AS path length visible in the Internet Routing Table:       4.3
          Max AS path length visible:                                      36
          Max AS path prepend of ASN (36992)                               29
      Prefixes from unregistered ASNs in the Routing Table:               598
          Unregistered ASNs in the Routing Table:                         263
      Number of 32-bit ASNs allocated by the RIRs:                       1295
      Number of 32-bit ASNs visible in the Routing Table:                1001
      Prefixes from 32-bit ASNs in the Routing Table:                    2210
      Special use prefixes present in the Routing Table:                    0
      Prefixes being announced from unallocated address space:            154
      Number of addresses announced to Internet:                   2411560512
          Equivalent to 143 /8s, 189 /16s and 126 /24s
          Percentage of available address space announced:               65.1
          Percentage of allocated address space announced:               65.1
          Percentage of available address space allocated:              100.0
          Percentage of address space in use by end-sites:               90.5
      Total number of prefixes smaller than registry allocations:      147006
      
      APNIC Region Analysis Summary
      -----------------------------
      
      Prefixes being announced by APNIC Region ASes:                    88171
          Total APNIC prefixes after maximum aggregation:               29869
          APNIC Deaggregation factor:                                    2.95
      Prefixes being announced from the APNIC address blocks:           85167
          Unique aggregates announced from the APNIC address blocks:    37065
      APNIC Region origin ASes present in the Internet Routing Table:    4407
          APNIC Prefixes per ASN:                                       19.33
      APNIC Region origin ASes announcing only one prefix:               1227
      APNIC Region transit ASes present in the Internet Routing Table:    699
      Average APNIC Region AS path length visible:                        4.6
          Max APNIC Region AS path length visible:                         20
      Number of APNIC region 32-bit ASNs visible in the Routing Table:     48
      Number of APNIC addresses announced to Internet:              609096480
          Equivalent to 36 /8s, 78 /16s and 19 /24s
          Percentage of available APNIC address space announced:         77.2
      
      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:                    139725
          Total ARIN prefixes after maximum aggregation:                71044
          ARIN Deaggregation factor:                                     1.97
      Prefixes being announced from the ARIN address blocks:           112194
          Unique aggregates announced from the ARIN address blocks:     45081
      ARIN Region origin ASes present in the Internet Routing Table:    14325
          ARIN Prefixes per ASN:                                         7.83
      ARIN Region origin ASes announcing only one prefix:                5472
      ARIN Region transit ASes present in the Internet Routing Table:    1489
      Average ARIN Region AS path length visible:                         3.9
          Max ARIN Region AS path length visible:                          23
      Number of ARIN region 32-bit ASNs visible in the Routing Table:      11
      Number of ARIN addresses announced to Internet:               797865344
          Equivalent to 47 /8s, 142 /16s and 117 /24s
          Percentage of available ARIN address space announced:          63.4
      
      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, 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:                     83950
          Total RIPE prefixes after maximum aggregation:                47756
          RIPE Deaggregation factor:                                     1.76
      Prefixes being announced from the RIPE address blocks:            77071
          Unique aggregates announced from the RIPE address blocks:     50757
      RIPE Region origin ASes present in the Internet Routing Table:    15521
          RIPE Prefixes per ASN:                                         4.97
      RIPE Region origin ASes announcing only one prefix:                7794
      RIPE Region transit ASes present in the Internet Routing Table:    2431
      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:     744
      Number of RIPE addresses announced to Internet:               466827392
          Equivalent to 27 /8s, 211 /16s and 56 /24s
          Percentage of available RIPE address space announced:          75.2
      
      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:                   32396
          Total LACNIC prefixes after maximum aggregation:               7436
          LACNIC Deaggregation factor:                                   4.36
      Prefixes being announced from the LACNIC address blocks:          31349
          Unique aggregates announced from the LACNIC address blocks:   16421
      LACNIC Region origin ASes present in the Internet Routing Table:   1439
          LACNIC Prefixes per ASN:                                      21.79
      LACNIC Region origin ASes announcing only one prefix:               429
      LACNIC Region transit ASes present in the Internet Routing Table:   261
      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:   193
      Number of LACNIC addresses announced to Internet:              81899648
          Equivalent to 4 /8s, 225 /16s and 176 /24s
          Percentage of available LACNIC address space announced:        54.2
      
      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:                   7714
          Total AfriNIC prefixes after maximum aggregation:              1829
          AfriNIC Deaggregation factor:                                  4.22
      Prefixes being announced from the AfriNIC address blocks:          6082
          Unique aggregates announced from the AfriNIC address blocks:   1881
      AfriNIC Region origin ASes present in the Internet Routing Table:   448
          AfriNIC Prefixes per ASN:                                     13.58
      AfriNIC Region origin ASes announcing only one prefix:              133
      AfriNIC Region transit ASes present in the Internet Routing Table:   99
      Average AfriNIC Region AS path length visible:                      4.7
          Max AfriNIC Region AS path length visible:                       31
      Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    5
      Number of AfriNIC addresses announced to Internet:             22753536
          Equivalent to 1 /8s, 91 /16s and 49 /24s
          Percentage of available AfriNIC address space announced:       33.9
      
      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     2433       9484         902   Korea Telecom (KIX)
      17974     1813        515          29   PT TELEKOMUNIKASI INDONESIA
       7545     1543        300          80   TPG Internet Pty Ltd
       4755     1445        638         166   TATA Communications formerly 
      24560     1137        322         203   Bharti Airtel Ltd., Telemedia
       4808     1064       2140         293   CNCGROUP IP network: China169
       9583     1055         77         496   Sify Limited
       9829     1008        870          50   BSNL National Internet Backbo
      17488      942        162          98   Hathway IP Over Cable Interne
      18101      934        116         139   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     3662       3822         255   bellsouth.net, inc. 
       4323     2661       1090         396   Time Warner Telecom
       1785     1788        681         128   PaeTec Communications, Inc.
      18566     1759        349         229   Covad Communications 
       6478     1623        307          37   AT&T Worldnet Services 
      20115     1535       1552         639   Charter Communications 
      19262     1495       4949         298   Verizon Global Networks 
       7018     1350       6801         878   AT&T WorldNet Services
      22773     1298       2865          84   Cox Communications, Inc.
       2386     1269        536         912   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      518       1780         320   UPC Distribution Services
      34984      505         98         183   BILISIM TELEKOM
      29049      467         33          34   AzerSat LLC.
       3292      454       1997         391   TDC Tele Danmark
       8866      446        134          26   Bulgarian Telecommunication C
      20940      436        126         335   Akamai Technologies European 
       3320      418       7607         364   Deutsche Telekom AG
      12479      406        577           6   Uni2 Autonomous System
       8551      403        353          46   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     1426        265         157   TVCABLE BOGOTA 
      28573     1274        972          86   NET Servicos de Comunicao S.A
       8151     1252       2686         374   UniNet S.A. de C.V. 
       7303      924        465         147   Telecom Argentina Stet-France
       6503      901        354          72   AVANTEL, S.A. 
      14420      663         53          91   CORPORACION NACIONAL DE TELEC
      22047      568        310          15   VTR PUNTO NET S.A. 
       3816      516        225          98   Empresa Nacional de Telecomun
      11172      487         99          81   Servicios Alestra S.A de C.V 
      27947      480         53          53   Telconet S.A
      
      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      840        445          11   TEDATA
      24863      778        147          39   LINKdotNET AS number
      15475      422         90           8   Nile Online
      36992      295        287          12   Etisalat MISR
       3741      266        985         227   The Internet Solution 
       6713      235        215          13   Itissalat Al-MAGHRIB
      33776      227         13           5   Starcomms Nigeria Limited
      24835      222         78          10   RAYA Telecom - Egypt
      29571      161         17          11   Ci Telecom Autonomous system 
      16637      148        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     3662       3822         255   bellsouth.net, inc. 
       4323     2661       1090         396   Time Warner Telecom
       4766     2433       9484         902   Korea Telecom (KIX)
      23456     2210        644        1206   32-bit ASN transition
      17974     1813        515          29   PT TELEKOMUNIKASI INDONESIA
       1785     1788        681         128   PaeTec Communications, Inc.
      18566     1759        349         229   Covad Communications 
       6478     1623        307          37   AT&T Worldnet Services 
       7545     1543        300          80   TPG Internet Pty Ltd
      20115     1535       1552         639   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      2661        2265      Time Warner Telecom
      17974      1813        1784      PT TELEKOMUNIKASI INDONESIA
       1785      1788        1660      PaeTec Communications, Inc.
       6478      1623        1586      AT&T Worldnet Services 
       4766      2433        1531      Korea Telecom (KIX)
      18566      1759        1530      Covad Communications 
       7545      1543        1463      TPG Internet Pty Ltd
       4755      1445        1279      TATA Communications formerly 
      10620      1426        1269      TVCABLE BOGOTA 
      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
      45083   UNALLOCATED  1.45.0.0/16           4808       CNCGROUP IP network:
      45083   UNALLOCATED  1.45.92.0/22          4808       CNCGROUP IP network:
      15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
      32567   UNALLOCATED  12.14.170.0/24        4323       Time Warner Telecom
      13746   UNALLOCATED  12.24.56.0/24         7018       AT&T WorldNet Servic
      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
      
      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
      31.7.168.0/21        48057     Company for interactive techn
      31.10.32.0/20        42004     Unlimited Group
      31.10.56.0/21        23456     32-bit ASN transition
      31.134.48.0/20       48559     Infomex Sp. z o.o.
      
      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        /8:19       /9:12      /10:26      /11:76      /12:219     
      /13:452     /14:774     /15:1376    /16:11604   /17:5737    /18:9469    
      /19:19145   /20:25180   /21:25557   /22:33681   /23:32570   /24:185400  
      /25:1120    /26:1274    /27:701     /28:40      /29:8       /30:2       
      /31:0       /32:6       
      
      Advertised prefixes smaller than registry allocations
      -----------------------------------------------------
      
        ASN   No of nets  Total ann.   Description
       6389     2259          3662      bellsouth.net, inc. 
      18566     1727          1759      Covad Communications 
       6478     1577          1623      AT&T Worldnet Services 
       4323     1356          2661      Time Warner Telecom
      10620     1316          1426      TVCABLE BOGOTA 
      11492     1211          1262      Cable One 
      23456     1143          2210      32-bit ASN transition
       7011     1062          1161      Citizens Utilities 
       1785     1058          1788      PaeTec Communications, Inc.
      22773      842          1298      Cox Communications, Inc.
      
      Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
      
      Number of /24s announced per /8 block (Global)
      ----------------------------------------------
      
         1:256       2:62        4:14        5:1         8:347      12:2000   
        13:1        14:436      15:15       16:3        17:8        20:9      
        23:5        24:1604     27:721      31:220      32:60       33:3      
        34:2        37:1        38:764      40:101      41:2402     42:1      
        44:3        46:851      47:4        49:173      50:358      52:13     
        55:7        56:2        57:27       58:844      59:478      60:387    
        61:1238     62:1008     63:1920     64:3916     65:2325     66:4350   
        67:1814     68:1082     69:2956     70:700      71:345      72:1906   
        73:1        74:2337     75:299      76:337      77:840      78:688    
        79:460      80:1088     81:828      82:505      83:455      84:646    
        85:1067     86:564      87:761      88:339      89:1584     90:181    
        91:3711     92:513      93:1053     94:1257     95:792      96:453    
        97:250      98:821      99:35      101:62      103:1       106:1      
       107:4       108:80      109:954     110:543     111:694     112:325    
       113:389     114:524     115:681     116:940     117:675     118:805    
       119:1137    120:290     121:675     122:1631    123:1062    124:1247   
       125:1266    128:265     129:164     130:172     131:562     132:113    
       133:20      134:217     135:49      136:213     137:142     138:301    
       139:103     140:487     141:174     142:398     143:394     144:484    
       145:53      146:440     147:204     148:597     149:243     150:171    
       151:187     152:307     153:180     154:3       155:394     156:190    
       157:354     158:132     159:382     160:315     161:245     162:277    
       163:164     164:488     165:350     166:514     167:419     168:725    
       169:154     170:780     171:75      172:1       173:1492    174:530    
       175:356     177:71      178:852     180:815     181:7       182:419    
       183:196     184:243     185:1       186:1139    187:807     188:988    
       189:1001    190:4841    192:5784    193:4816    194:3468    195:2966   
       196:1208    197:16      198:3568    199:3919    200:5531    201:1500   
       202:8347    203:8452    204:4140    205:2323    206:2730    207:3027   
       208:3951    209:3501    210:2728    211:1361    212:1977    213:1719   
       214:732     215:67      216:4863    217:1659    218:556     219:385    
       220:1195    221:479     222:341     223:137    
      
      End of report