[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 9 21:11:16 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 10 May, 2014

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

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

BGP routing table entries examined:                              493796
    Prefixes after maximum aggregation:                          193891
    Deaggregation factor:                                          2.55
    Unique aggregates announced to Internet:                     244717
Total ASes present in the Internet Routing Table:                 46783
    Prefixes per ASN:                                             10.56
Origin-only ASes present in the Internet Routing Table:           35788
Origin ASes announcing only one prefix:                           16362
Transit ASes present in the Internet Routing Table:                6078
Transit-only ASes present in the Internet Routing Table:            173
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      53
    Max AS path prepend of ASN ( 50404)                              51
Prefixes from unregistered ASNs in the Routing Table:              1828
    Unregistered ASNs in the Routing Table:                         460
Number of 32-bit ASNs allocated by the RIRs:                       6563
Number of 32-bit ASNs visible in the Routing Table:                4917
Prefixes from 32-bit ASNs in the Routing Table:                   16421
Number of bogon 32-bit ASNs visible in the Routing Table:           100
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            398
Number of addresses announced to Internet:                   2682427140
    Equivalent to 159 /8s, 226 /16s and 151 /24s
    Percentage of available address space announced:               72.5
    Percentage of allocated address space announced:               72.5
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.3
Total number of prefixes smaller than registry allocations:      171140

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

Prefixes being announced by APNIC Region ASes:                   117515
    Total APNIC prefixes after maximum aggregation:               34991
    APNIC Deaggregation factor:                                    3.36
Prefixes being announced from the APNIC address blocks:          120427
    Unique aggregates announced from the APNIC address blocks:    50342
APNIC Region origin ASes present in the Internet Routing Table:    4927
    APNIC Prefixes per ASN:                                       24.44
APNIC Region origin ASes announcing only one prefix:               1227
APNIC Region transit ASes present in the Internet Routing Table:    868
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         30
Number of APNIC region 32-bit ASNs visible in the Routing Table:    940
Number of APNIC addresses announced to Internet:              732451712
    Equivalent to 43 /8s, 168 /16s and 83 /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:                    167973
    Total ARIN prefixes after maximum aggregation:                83567
    ARIN Deaggregation factor:                                     2.01
Prefixes being announced from the ARIN address blocks:           169469
    Unique aggregates announced from the ARIN address blocks:     79909
ARIN Region origin ASes present in the Internet Routing Table:    16255
    ARIN Prefixes per ASN:                                        10.43
ARIN Region origin ASes announcing only one prefix:                6117
ARIN Region transit ASes present in the Internet Routing Table:    1665
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          23
Number of ARIN region 32-bit ASNs visible in the Routing Table:      99
Number of ARIN addresses announced to Internet:              1075858560
    Equivalent to 64 /8s, 32 /16s and 76 /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:                    123505
    Total RIPE prefixes after maximum aggregation:                62580
    RIPE Deaggregation factor:                                     1.97
Prefixes being announced from the RIPE address blocks:           128045
    Unique aggregates announced from the RIPE address blocks:     80903
RIPE Region origin ASes present in the Internet Routing Table:    17675
    RIPE Prefixes per ASN:                                         7.24
RIPE Region origin ASes announcing only one prefix:                8268
RIPE Region transit ASes present in the Internet Routing Table:    2874
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:    2693
Number of RIPE addresses announced to Internet:               657616260
    Equivalent to 39 /8s, 50 /16s and 109 /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:                   56356
    Total LACNIC prefixes after maximum aggregation:              10059
    LACNIC Deaggregation factor:                                   5.60
Prefixes being announced from the LACNIC address blocks:          62858
    Unique aggregates announced from the LACNIC address blocks:   28900
LACNIC Region origin ASes present in the Internet Routing Table:   2095
    LACNIC Prefixes per ASN:                                      30.00
LACNIC Region origin ASes announcing only one prefix:               547
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:                        34
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1155
Number of LACNIC addresses announced to Internet:             160668288
    Equivalent to 9 /8s, 147 /16s and 154 /24s
    Percentage of available LACNIC address space announced:        95.8

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:                  11917
    Total AfriNIC prefixes after maximum aggregation:              2656
    AfriNIC Deaggregation factor:                                  4.49
Prefixes being announced from the AfriNIC address blocks:         12599
    Unique aggregates announced from the AfriNIC address blocks:   4335
AfriNIC Region origin ASes present in the Internet Routing Table:   715
    AfriNIC Prefixes per ASN:                                     17.62
AfriNIC Region origin ASes announcing only one prefix:              203
AfriNIC Region transit ASes present in the Internet Routing Table:  153
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   30
Number of AfriNIC addresses announced to Internet:             55520512
    Equivalent to 3 /8s, 79 /16s and 45 /24s
    Percentage of available AfriNIC address space announced:       55.2

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     2947      11591         922   Korea Telecom
17974     2801        901          75   PT Telekomunikasi Indonesia
 7545     2224        320         117   TPG Telecom Limited
 4755     1855        396         199   TATA Communications formerly 
 9829     1629       1291          32   National Internet Backbone
 9583     1328        103         545   Sify Limited
 9498     1258        314          84   BHARTI Airtel Ltd.
 7552     1225       1082          13   Viettel Corporation
 4808     1208       2151         355   CNCGROUP IP network China169 
24560     1130        388         175   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     2966       3688          53   BellSouth.net Inc.
22773     2425       2937         134   Cox Communications Inc.
 1785     2204        700         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
20115     1705       1688         564   Charter Communications
 4323     1628       1073         409   tw telecom holdings, inc.
  701     1479      11159         750   MCI Communications Services, 
30036     1406        305         549   Mediacom Communications Corp
 6983     1328        800         307   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     1506        544          16   OJSC "Vimpelcom"
20940     1320        506         988   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      822        357          27   JSC "Ukrtelecom"
 6830      766       2333         427   Liberty Global Operations B.V
12479      721        797          56   France Telecom Espana SA
 9198      564        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     3777       1989         101   NET Serviços de Comunicação S
10620     2854        462         191   Telmex Colombia S.A.
18881     1970        972          21   Global Village Telecom
 7303     1755       1174         230   Telecom Argentina S.A.
 8151     1402       2931         406   Uninet S.A. de C.V.
 6503     1108        434          60   Axtel, S.A.B. de C.V.
 7738      913       1754          40   Telemar Norte Leste S.A.
27947      872        114          50   Telconet S.A
26615      842       2325          35   Tim Celular S.A.
11830      815        364          15   Instituto Costarricense de El

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      963        280          26   Link Egypt (Link.NET)
 6713      614        722          28   Office National des Postes et
 8452      573        958          13   TE-AS
24835      304        144           9   Vodafone Data
36992      301        783          24   ETISALAT MISR
 3741      247        921         208   Internet Solutions
37054      229         19           6   Data Telecom Service
29571      228         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     3777       1989         101   NET Serviços de Comunicação S
 6389     2966       3688          53   BellSouth.net Inc.
 4766     2947      11591         922   Korea Telecom
10620     2854        462         191   Telmex Colombia S.A.
17974     2801        901          75   PT Telekomunikasi Indonesia
22773     2425       2937         134   Cox Communications Inc.
 7545     2224        320         117   TPG Telecom Limited
 1785     2204        700         135   PaeTec Communications, Inc.
18566     2047        379         178   MegaPath Corporation
18881     1970        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      2966        2913      BellSouth.net Inc.
17974      2801        2726      PT Telekomunikasi Indonesia
10620      2854        2663      Telmex Colombia S.A.
22773      2425        2291      Cox Communications Inc.
 7545      2224        2107      TPG Telecom Limited
 1785      2204        2069      PaeTec Communications, Inc.
 4766      2947        2025      Korea Telecom
18881      1970        1949      Global Village Telecom
18566      2047        1869      MegaPath Corporation
 4755      1855        1656      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

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      /11:90      /12:258     
/13:483     /14:966     /15:1703    /16:12943   /17:6841    /18:11674   
/19:24314   /20:34252   /21:36653   /22:52933   /23:46217   /24:262262  
/25:771     /26:927     /27:397     /28:13      /29:20      /30:8       
/31:1       /32:12      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
 6389     1694          2966      BellSouth.net Inc.
22773     1671          2425      Cox Communications Inc.
30036     1244          1406      Mediacom Communications Corp
 8402     1200          1506      OJSC "Vimpelcom"
11492     1173          1213      CABLE ONE, INC.
 1785     1166          2204      PaeTec Communications, Inc.
36998     1080          1114      Sudanese Mobile Telephone (ZA
 6983     1043          1328      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)
----------------------------------------------

   1:1029      2:662       3:3         4:15        5:983       6:19     
   8:742      12:1842     13:4        14:991      15:13       16:2      
  17:31       18:21       20:36       23:790      24:1734     25:1      
  27:1759     31:1478     32:40       33:2        34:5        36:131    
  37:1881     38:957      39:7        40:198      41:3187     42:250    
  44:12       46:2180     47:19       49:702      50:916      52:12     
  54:47       55:7        57:28       58:1235     59:602      60:405    
  61:1544     62:1236     63:1963     64:4366     65:2294     66:4158   
  67:2072     68:1031     69:3310     70:857      71:447      72:2010   
  74:2654     75:315      76:419      77:1532     78:892      79:707    
  80:1295     81:1163     82:743      83:757      84:721      85:1263   
  86:470      87:1169     88:483      89:1797     90:140      91:5688   
  92:693      93:1713     94:2036     95:1477     96:511      97:349    
  98:1076     99:48      100:54      101:796     103:4787    105:536    
 106:173     107:600     108:577     109:2055    110:959     111:1292   
 112:659     113:842     114:901     115:1121    116:1061    117:933    
 118:1398    119:1339    120:382     121:809     122:2032    123:1323   
 124:1408    125:1401    128:627     129:318     130:346     131:659    
 132:398     133:162     134:322     135:74      136:252     137:291    
 138:349     139:171     140:210     141:371     142:574     143:445    
 144:506     145:103     146:605     147:458     148:909     149:346    
 150:169     151:786     152:425     153:218     154:277     155:484    
 156:336     157:336     158:240     159:899     160:329     161:538    
 162:1412    163:220     164:691     165:599     166:280     167:614    
 168:1031    169:123     170:1399    171:191     172:21      173:1626   
 174:701     175:596     176:1460    177:2878    178:1983    179:617    
 180:1723    181:1135    182:1559    183:513     184:706     185:1600   
 186:2762    187:1553    188:1914    189:1458    190:7542    191:284    
 192:7265    193:5499    194:4051    195:3496    196:1406    197:645    
 198:5036    199:5575    200:6245    201:2610    202:9006    203:8883   
 204:4637    205:2702    206:2932    207:2953    208:3990    209:3726   
 210:3098    211:1684    212:2298    213:2078    214:901     215:86     
 216:5521    217:1678    218:578     219:321     220:1283    221:604    
 222:354     223:582    

End of report



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