[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 16 21:11:44 EAT 2014


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 17 May, 2014

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                              494425
    Prefixes after maximum aggregation:                          194026
    Deaggregation factor:                                          2.55
    Unique aggregates announced to Internet:                     244746
Total ASes present in the Internet Routing Table:                 46876
    Prefixes per ASN:                                             10.55
Origin-only ASes present in the Internet Routing Table:           35819
Origin ASes announcing only one prefix:                           16376
Transit ASes present in the Internet Routing Table:                6100
Transit-only ASes present in the Internet Routing Table:            178
Average AS path length visible in the Internet Routing Table:       4.5
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1767
    Unregistered ASNs in the Routing Table:                         459
Number of 32-bit ASNs allocated by the RIRs:                       6631
Number of 32-bit ASNs visible in the Routing Table:                4957
Prefixes from 32-bit ASNs in the Routing Table:                   16579
Number of bogon 32-bit ASNs visible in the Routing Table:           123
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            455
Number of addresses announced to Internet:                   2686157316
    Equivalent to 160 /8s, 27 /16s and 130 /24s
    Percentage of available address space announced:               72.6
    Percentage of allocated address space announced:               72.6
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.4
Total number of prefixes smaller than registry allocations:      170913

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                   117997
    Total APNIC prefixes after maximum aggregation:               35118
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          120997
    Unique aggregates announced from the APNIC address blocks:    50556
APNIC Region origin ASes present in the Internet Routing Table:    4941
    APNIC Prefixes per ASN:                                       24.49
APNIC Region origin ASes announcing only one prefix:               1231
APNIC Region transit ASes present in the Internet Routing Table:    871
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:    947
Number of APNIC addresses announced to Internet:              732831104
    Equivalent to 43 /8s, 174 /16s and 29 /24s
    Percentage of available APNIC address space announced:         85.6

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
                       163/8, 171/8, 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:                    168161
    Total ARIN prefixes after maximum aggregation:                83564
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           169653
    Unique aggregates announced from the ARIN address blocks:     79930
ARIN Region origin ASes present in the Internet Routing Table:    16272
    ARIN Prefixes per ASN:                                        10.43
ARIN Region origin ASes announcing only one prefix:                6124
ARIN Region transit ASes present in the Internet Routing Table:    1670
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:     103
Number of ARIN addresses announced to Internet:              1075289472
    Equivalent to 64 /8s, 23 /16s and 157 /24s
    Percentage of available ARIN address space announced:          56.9

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, 62464-63487, 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, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 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:                    123140
    Total RIPE prefixes after maximum aggregation:                62592
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           127720
    Unique aggregates announced from the RIPE address blocks:     80508
RIPE Region origin ASes present in the Internet Routing Table:    17686
    RIPE Prefixes per ASN:                                         7.22
RIPE Region origin ASes announcing only one prefix:                8272
RIPE Region transit ASes present in the Internet Routing Table:    2884
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          53
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2702
Number of RIPE addresses announced to Internet:               657675908
    Equivalent to 39 /8s, 51 /16s and 86 /24s
    Percentage of available RIPE address space announced:          95.6

RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 196608-202239
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,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   56577
    Total LACNIC prefixes after maximum aggregation:              10060
    LACNIC Deaggregation factor:                                   5.62
Prefixes being announced from the LACNIC address blocks:          63064
    Unique aggregates announced from the LACNIC address blocks:   29007
LACNIC Region origin ASes present in the Internet Routing Table:   2098
    LACNIC Prefixes per ASN:                                      30.06
LACNIC Region origin ASes announcing only one prefix:               541
LACNIC Region transit ASes present in the Internet Routing Table:   437
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1174
Number of LACNIC addresses announced to Internet:             161174912
    Equivalent to 9 /8s, 155 /16s and 85 /24s
    Percentage of available LACNIC address space announced:        96.1

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  11859
    Total AfriNIC prefixes after maximum aggregation:              2654
    AfriNIC Deaggregation factor:                                  4.47
Prefixes being announced from the AfriNIC address blocks:         12536
    Unique aggregates announced from the AfriNIC address blocks:   4364
AfriNIC Region origin ASes present in the Internet Routing Table:   718
    AfriNIC Prefixes per ASN:                                     17.46
AfriNIC Region origin ASes announcing only one prefix:              208
AfriNIC Region transit ASes present in the Internet Routing Table:  152
Average AfriNIC Region AS path length visible:                      4.6
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   31
Number of AfriNIC addresses announced to Internet:             55690496
    Equivalent to 3 /8s, 81 /16s and 197 /24s
    Percentage of available AfriNIC address space announced:       55.3

AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 4766     2946      11591         922   Korea Telecom
17974     2793        899          72   PT Telekomunikasi Indonesia
 7545     2228        320         117   TPG Telecom Limited
 4755     1852        396         199   TATA Communications formerly 
 9829     1645       1306          37   National Internet Backbone
 9583     1315        104         543   Sify Limited
 9498     1260        314          86   BHARTI Airtel Ltd.
 7552     1223       1082          13   Viettel Corporation
 4808     1219       2153         363   CNCGROUP IP network China169 
24560     1129        389         183   Bharti Airtel Ltd., Telemedia

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     2960       3688          53   BellSouth.net Inc.
22773     2438       2937         133   Cox Communications Inc.
 1785     2206        701         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
20115     1706       1689         567   Charter Communications
 4323     1632       1073         412   tw telecom holdings, inc.
  701     1473      11159         746   MCI Communications Services, 
30036     1407        306         549   Mediacom Communications Corp
 6983     1327        800         306   ITC^Deltacom
22561     1306        402         232   CenturyTel Internet Holdings,

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
34984     1708        264         270   TELLCOM ILETISIM HIZMETLERI A
 8402     1497        544          16   OJSC "Vimpelcom"
20940     1328        509         991   Akamai International B.V.
13188     1049        100          28   TOV "Bank-Inform"
31148     1018         45          19   Freenet Ltd.
 8551      918        370          40   Bezeq International-Ltd
 6849      823        357          28   JSC "Ukrtelecom"
 6830      765       2333         427   Liberty Global Operations B.V
12479      722        797          56   France Telecom Espana SA
 9198      569        344          25   JSC Kazakhtelecom

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
28573     3757       1990          99   NET Serviços de Comunicação S
10620     2853        461         202   Telmex Colombia S.A.
18881     1982        972          21   Global Village Telecom
 7303     1753       1174         229   Telecom Argentina S.A.
 8151     1403       2933         405   Uninet S.A. de C.V.
 6503     1108        434          60   Axtel, S.A.B. de C.V.
 7738      912       1754          39   Telemar Norte Leste S.A.
27947      876        114          50   Telconet S.A
26615      858       2325          35   Tim Celular S.A.
 3816      817        334         136   COLOMBIA TELECOMUNICACIONES S

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
36998     1114        240           6   Sudanese Mobile Telephone (ZA
24863      961        280          26   Link Egypt (Link.NET)
 6713      615        727          32   Office National des Postes et
 8452      577        958          13   TE-AS
24835      304        144           9   Vodafone Data
36992      301        783          24   ETISALAT MISR
 3741      248        921         209   Internet Solutions
37054      241         19           6   Data Telecom Service
29571      229         22          16   Cote d'Ivoire Telecom
29975      192        668          21   Vodacom

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
28573     3757       1990          99   NET Serviços de Comunicação S
 6389     2960       3688          53   BellSouth.net Inc.
 4766     2946      11591         922   Korea Telecom
10620     2853        461         202   Telmex Colombia S.A.
17974     2793        899          72   PT Telekomunikasi Indonesia
22773     2438       2937         133   Cox Communications Inc.
 7545     2228        320         117   TPG Telecom Limited
 1785     2206        701         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
18881     1982        972          21   Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings Description
 6389      2960        2907      BellSouth.net Inc.
17974      2793        2721      PT Telekomunikasi Indonesia
10620      2853        2651      Telmex Colombia S.A.
22773      2438        2305      Cox Communications Inc.
 7545      2228        2111      TPG Telecom Limited
 1785      2206        2071      PaeTec Communications, Inc.
 4766      2946        2024      Korea Telecom
18881      1982        1961      Global Village Telecom
18566      2047        1869      MegaPath Corporation
 4755      1852        1653      TATA Communications formerly 

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS  Designation  Network              Transit AS  Description
65456   PRIVATE      5.109.32.0/19        23456       32bit Transition AS
65456   PRIVATE      5.109.96.0/19        23456       32bit Transition AS
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         2828       XO Communications
20260   UNALLOCATED  8.25.160.0/24         3356       Level 3 Communicatio
20260   UNALLOCATED  8.25.161.0/24         3356       Level 3 Communicatio
46473   UNALLOCATED  8.27.122.0/24        12180       Internap Network Ser
46473   UNALLOCATED  8.27.124.0/24        12180       Internap Network Ser
22511   UNALLOCATED  8.28.225.0/24         2828       XO Communications
22511   UNALLOCATED  8.36.68.0/24          2828       XO Communications

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.64.0.0/11         7922     Comcast Cable Communications,
100.64.111.0/24      25019     Autonomus System Number for S
100.96.0.0/12         7922     Comcast Cable Communications,

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
27.100.7.0/24        56096     >>UNKNOWN<<
41.73.1.0/24         37004     >>UNKNOWN<<
41.73.2.0/24         37004     >>UNKNOWN<<
41.73.10.0/24        37004     >>UNKNOWN<<
41.73.11.0/24        37004     >>UNKNOWN<<
41.73.12.0/24        37004     >>UNKNOWN<<
41.73.13.0/24        37004     >>UNKNOWN<<
41.73.14.0/24        37004     >>UNKNOWN<<
41.73.15.0/24        37004     >>UNKNOWN<<
41.73.16.0/24        37004     >>UNKNOWN<<

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        /8:16       /9:12      /10:30      /11:91      /12:259     
/13:486     /14:966     /15:1700    /16:12964   /17:6885    /18:11699   
/19:24346   /20:34354   /21:36772   /22:52838   /23:46336   /24:262524  
/25:775     /26:929     /27:390     /28:13      /29:20      /30:7       
/31:1       /32:12      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
 6389     1692          2960      BellSouth.net Inc.
22773     1683          2438      Cox Communications Inc.
30036     1245          1407      Mediacom Communications Corp
 8402     1182          1497      OJSC "Vimpelcom"
11492     1175          1215      CABLE ONE, INC.
 1785     1166          2206      PaeTec Communications, Inc.
36998     1080          1114      Sudanese Mobile Telephone (ZA
 6983     1044          1327      ITC^Deltacom
34984     1038          1708      TELLCOM ILETISIM HIZMETLERI A

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:1123      2:670       3:3         4:15        5:1000      6:19     
   8:745      12:1843     13:4        14:997      15:13       16:2      
  17:32       18:21       20:36       23:820      24:1733     25:1      
  27:1751     31:1481     32:43       33:2        34:5        36:132    
  37:1882     38:959      39:8        40:203      41:3165     42:249    
  44:12       46:2042     47:19       49:703      50:933      52:12     
  54:47       55:6        57:29       58:1227     59:602      60:408    
  61:1539     62:1219     63:1962     64:4302     65:2290     66:4192   
  67:2068     68:1034     69:3332     70:855      71:449      72:2016   
  74:2652     75:323      76:419      77:1517     78:874      79:706    
  80:1291     81:1165     82:746      83:752      84:684      85:1294   
  86:462      87:1157     88:482      89:1829     90:140      91:5684   
  92:694      93:1712     94:2024     95:1494     96:524      97:364    
  98:1075     99:48      100:55      101:804     103:4848    105:536    
 106:170     107:601     108:578     109:2052    110:968     111:1295   
 112:651     113:846     114:897     115:1124    116:1094    117:941    
 118:1369    119:1337    120:383     121:811     122:2035    123:1321   
 124:1407    125:1398    128:582     129:341     130:346     131:661    
 132:401     133:162     134:321     135:74      136:254     137:296    
 138:350     139:170     140:214     141:373     142:569     143:464    
 144:501     145:104     146:624     147:476     148:893     149:355    
 150:173     151:791     152:420     153:218     154:279     155:484    
 156:334     157:336     158:240     159:900     160:329     161:542    
 162:1438    163:221     164:691     165:605     166:281     167:614    
 168:1050    169:123     170:1405    171:187     172:21      173:1654   
 174:707     175:599     176:1409    177:2929    178:1979    179:626    
 180:1730    181:1121    182:1558    183:526     184:700     185:1638   
 186:2784    187:1539    188:1895    189:1466    190:7511    191:291    
 192:7263    193:5495    194:4051    195:3497    196:1411    197:646    
 198:5049    199:5549    200:6273    201:2614    202:9037    203:8893   
 204:4644    205:2675    206:2935    207:2965    208:3991    209:3722   
 210:3098    211:1685    212:2295    213:2085    214:879     215:86     
 216:5511    217:1676    218:581     219:321     220:1291    221:610    
 222:353     223:580    

End of report



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