[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 1 18:12:31 UTC 2015


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,
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 02 May, 2015

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

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

BGP routing table entries examined:                              542615
    Prefixes after maximum aggregation (per Origin AS):          206677
    Deaggregation factor:                                          2.63
    Unique aggregates announced (without unneeded subnets):      264045
Total ASes present in the Internet Routing Table:                 50153
    Prefixes per ASN:                                             10.82
Origin-only ASes present in the Internet Routing Table:           36593
Origin ASes announcing only one prefix:                           16304
Transit ASes present in the Internet Routing Table:                6326
Transit-only ASes present in the Internet Routing Table:            175
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                     123
    Max AS path prepend of ASN ( 18596)                             121
Prefixes from unregistered ASNs in the Routing Table:              1094
    Unregistered ASNs in the Routing Table:                         393
Number of 32-bit ASNs allocated by the RIRs:                       9336
Number of 32-bit ASNs visible in the Routing Table:                7234
Prefixes from 32-bit ASNs in the Routing Table:                   26398
Number of bogon 32-bit ASNs visible in the Routing Table:             2
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            357
Number of addresses announced to Internet:                   2741034756
    Equivalent to 163 /8s, 96 /16s and 223 /24s
    Percentage of available address space announced:               74.0
    Percentage of allocated address space announced:               74.0
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               97.3
Total number of prefixes smaller than registry allocations:      182211

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

Prefixes being announced by APNIC Region ASes:                   133995
    Total APNIC prefixes after maximum aggregation:               38939
    APNIC Deaggregation factor:                                    3.44
Prefixes being announced from the APNIC address blocks:          140133
    Unique aggregates announced from the APNIC address blocks:    56870
APNIC Region origin ASes present in the Internet Routing Table:    5031
    APNIC Prefixes per ASN:                                       27.85
APNIC Region origin ASes announcing only one prefix:               1203
APNIC Region transit ASes present in the Internet Routing Table:    883
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         44
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1412
Number of APNIC addresses announced to Internet:              748015104
    Equivalent to 44 /8s, 149 /16s and 206 /24s
    Percentage of available APNIC address space announced:         87.4

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 131072-135580
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:                    178441
    Total ARIN prefixes after maximum aggregation:                87808
    ARIN Deaggregation factor:                                     2.03
Prefixes being announced from the ARIN address blocks:           180863
    Unique aggregates announced from the ARIN address blocks:     84299
ARIN Region origin ASes present in the Internet Routing Table:    16578
    ARIN Prefixes per ASN:                                        10.91
ARIN Region origin ASes announcing only one prefix:                6113
ARIN Region transit ASes present in the Internet Routing Table:    1732
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                         123
Number of ARIN region 32-bit ASNs visible in the Routing Table:     416
Number of ARIN addresses announced to Internet:              1065268096
    Equivalent to 63 /8s, 126 /16s and 179 /24s
    Percentage of available ARIN address space announced:          56.4

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, 62464-63487, 64198-64296, 393216-395164
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:                    131501
    Total RIPE prefixes after maximum aggregation:                65670
    RIPE Deaggregation factor:                                     2.00
Prefixes being announced from the RIPE address blocks:           137869
    Unique aggregates announced from the RIPE address blocks:     85064
RIPE Region origin ASes present in the Internet Routing Table:    17948
    RIPE Prefixes per ASN:                                         7.68
RIPE Region origin ASes announcing only one prefix:                8161
RIPE Region transit ASes present in the Internet Routing Table:    2971
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          34
Number of RIPE region 32-bit ASNs visible in the Routing Table:    3651
Number of RIPE addresses announced to Internet:               694791300
    Equivalent to 41 /8s, 105 /16s and 172 /24s
    Percentage of available RIPE address space announced:         101.0

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:                   59301
    Total LACNIC prefixes after maximum aggregation:              11195
    LACNIC Deaggregation factor:                                   5.30
Prefixes being announced from the LACNIC address blocks:          69379
    Unique aggregates announced from the LACNIC address blocks:   32345
LACNIC Region origin ASes present in the Internet Routing Table:   2420
    LACNIC Prefixes per ASN:                                      28.67
LACNIC Region origin ASes announcing only one prefix:               625
LACNIC Region transit ASes present in the Internet Routing Table:   497
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        22
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1644
Number of LACNIC addresses announced to Internet:             167524096
    Equivalent to 9 /8s, 252 /16s and 55 /24s
    Percentage of available LACNIC address space announced:        99.9

LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-265628 + 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:                  12814
    Total AfriNIC prefixes after maximum aggregation:              3021
    AfriNIC Deaggregation factor:                                  4.24
Prefixes being announced from the AfriNIC address blocks:         14014
    Unique aggregates announced from the AfriNIC address blocks:   5143
AfriNIC Region origin ASes present in the Internet Routing Table:   737
    AfriNIC Prefixes per ASN:                                     19.01
AfriNIC Region origin ASes announcing only one prefix:              202
AfriNIC Region transit ASes present in the Internet Routing Table:  160
Average AfriNIC Region AS path length visible:                      4.5
    Max AfriNIC Region AS path length visible:                       24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  111
Number of AfriNIC addresses announced to Internet:             65126912
    Equivalent to 3 /8s, 225 /16s and 194 /24s
    Percentage of available AfriNIC address space announced:       64.7

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     2929      11557         913   Korea Telecom
17974     2761        904          78   PT Telekomunikasi Indonesia
 7545     2577        336         129   TPG Telecom Limited
 4755     2013        422         214   TATA Communications formerly 
 4538     1912       4190          72   China Education and Research 
 9829     1656       1326          39   National Internet Backbone
 9808     1572       8717          28   Guangdong Mobile Communicatio
 4808     1429       2241         452   CNCGROUP IP network China169 
 9583     1416        117         577   Sify Limited
 9498     1325        334          95   BHARTI Airtel Ltd.

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
22773     3013       2955         142   Cox Communications Inc.
 6389     2832       3688          51   BellSouth.net Inc.
 3356     2551      10684         479   Level 3 Communications, Inc.
18566     2039        379         182   MegaPath Corporation
20115     1879       1844         432   Charter Communications
 6983     1754        866         245   EarthLink, Inc.
 4323     1616       1021         409   tw telecom holdings, inc.
30036     1527        310         490   Mediacom Communications Corp
  701     1404      11276         687   MCI Communications Services, 
22561     1353        413         248   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
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
34984     1970        303         368   TELLCOM ILETISIM HIZMETLERI A
20940     1816        703        1341   Akamai International B.V.
 6849     1214        356          24   JSC "Ukrtelecom"
31148     1049         45          23   Freenet Ltd.
13188     1035         96          68   TOV "Bank-Inform"
 8402     1027        544          15   OJSC "Vimpelcom"
12479      920        867          80   France Telecom Espana SA
 8551      886        373          48   Bezeq International-Ltd
 9198      854        349          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
10620     3211        523         211   Telmex Colombia S.A.
28573     2315       2169         117   NET Serviços de Comunicação S
 7303     1657       1043         242   Telecom Argentina S.A.
 6147     1615        374          30   Telefonica del Peru S.A.A.
 8151     1592       3193         452   Uninet S.A. de C.V.
 6503     1247        421          53   Axtel, S.A.B. de C.V.
 7738      999       1882          41   Telemar Norte Leste S.A.
26615      978       2325          35   Tim Celular S.A.
 3816      924        418         155   COLOMBIA TELECOMUNICACIONES S
18881      864       1036          22   Global Village Telecom

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     1707        958          13   TE-AS
24863      971        284          27   Link Egypt (Link.NET)
36903      495        249          88   Office National des Postes et
36992      419       1229          32   ETISALAT MISR
37492      303        155          72   Orange Tunisie
24835      300        144           9   Vodafone Data
 3741      250        857         208   Internet Solutions
29571      231         21          12   Cote d'Ivoire Telecom
36947      201        807          13   Telecom Algeria
37054      181         19           6   Data Telecom Service

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
10620     3211        523         211   Telmex Colombia S.A.
22773     3013       2955         142   Cox Communications Inc.
 4766     2929      11557         913   Korea Telecom
 6389     2832       3688          51   BellSouth.net Inc.
17974     2761        904          78   PT Telekomunikasi Indonesia
 7545     2577        336         129   TPG Telecom Limited
 3356     2551      10684         479   Level 3 Communications, Inc.
39891     2472        128           6   SaudiNet, Saudi Telecom Compa
28573     2315       2169         117   NET Serviços de Comunicação S
18566     2039        379         182   MegaPath Corporation

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

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

  ASN   No of nets  Net Savings Description
22773      3013        2871      Cox Communications Inc.
 6389      2832        2781      BellSouth.net Inc.
17974      2761        2683      PT Telekomunikasi Indonesia
39891      2472        2466      SaudiNet, Saudi Telecom Compa
 7545      2577        2448      TPG Telecom Limited
28573      2315        2198      NET Serviços de Comunicação S
 3356      2551        2072      Level 3 Communications, Inc.
 4766      2929        2016      Korea Telecom
18566      2039        1857      MegaPath Corporation
 4538      1912        1840      China Education and Research 

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

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

Bad AS  Designation  Network              Transit AS  Description
30662   UNALLOCATED  8.2.129.0/24          3356       Level 3 Communicatio
53506   UNALLOCATED  8.17.102.0/23         3356       Level 3 Communicatio
46467   UNALLOCATED  8.19.192.0/24        46887       Lightower Fiber Netw
18985   UNALLOCATED  8.21.68.0/22          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
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati
15347   UNALLOCATED  8.224.147.0/24       12064       Cox Communications I
33628   UNALLOCATED  12.0.239.0/24         1239       Sprint
32805   UNALLOCATED  12.1.225.0/24         7018       AT&T Services, Inc.

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

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

Network            Origin AS  Description
5.100.241.0/24       23456     32bit Transition AS
23.226.112.0/20      62788     >>UNKNOWN<<
27.100.7.0/24        56096     >>UNKNOWN<<
31.217.248.0/21      44902     COVAGE NETWORKS SASU
41.73.1.0/24         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<<
41.73.15.0/24        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      /10:34      /11:94      /12:264     
/13:505     /14:1005    /15:1717    /16:12958   /17:7210    /18:12230   
/19:25341   /20:35907   /21:38604   /22:59228   /23:51517   /24:292935  
/25:1135    /26:1142    /27:717     /28:12      /29:11      /30:8       
/31:0       /32:13      

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

  ASN   No of nets  Total ann.   Description
39891     2432          2472      SaudiNet, Saudi Telecom Compa
22773     2222          3013      Cox Communications Inc.
18566     1995          2039      MegaPath Corporation
 6389     1654          2832      BellSouth.net Inc.
 6983     1401          1754      EarthLink, Inc.
30036     1370          1527      Mediacom Communications Corp
34984     1289          1970      TELLCOM ILETISIM HIZMETLERI A
 6147     1167          1615      Telefonica del Peru S.A.A.
10620     1135          3211      Telmex Colombia S.A.
11492     1111          1186      CABLE ONE, INC.

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

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

   1:1482      2:678       4:94        5:1767      6:23        8:1420   
  12:1822     13:10       14:1329     15:17       16:2        17:44     
  18:21       20:48       23:1226     24:1707     27:1890     31:1569   
  32:38       33:2        34:5        35:3        36:118      37:1903   
  38:1019     39:7        40:250      41:3009     42:323      43:1252   
  44:26       45:487      46:2155     47:40       49:902      50:800    
  52:12       54:73       55:5        56:8        57:37       58:1278   
  59:711      60:472      61:1742     62:1332     63:1915     64:4403   
  65:2252     66:4055     67:2048     68:1049     69:3253     70:959    
  71:449      72:1953     74:2653     75:334      76:414      77:1434   
  78:1185     79:794      80:1327     81:1348     82:808      83:692    
  84:708      85:1348     86:389      87:1075     88:509      89:1812   
  90:151      91:5965     92:831      93:2196     94:2035     95:2125   
  96:432      97:354      98:1054     99:49      100:69      101:828    
 103:7285    104:1656    105:61      106:246     107:943     108:620    
 109:2041    110:1094    111:1477    112:779     113:1116    114:821    
 115:1257    116:1355    117:1051    118:1793    119:1452    120:446    
 121:1077    122:2206    123:1796    124:1498    125:1581    128:627    
 129:380     130:393     131:1166    132:482     133:174     134:425    
 135:107     136:326     137:314     138:663     139:148     140:225    
 141:423     142:661     143:503     144:568     145:114     146:696    
 147:590     148:1134    149:432     150:571     151:614     152:494    
 153:243     154:455     155:842     156:407     157:463     158:320    
 159:1000    160:379     161:652     162:1955    163:424     164:671    
 165:691     166:304     167:819     168:1289    169:167     170:1468   
 171:241     172:43      173:1510    174:701     175:676     176:1233   
 177:3785    178:2143    179:872     180:1934    181:1681    182:1741   
 183:619     184:740     185:3398    186:2635    187:1739    188:2002   
 189:1569    190:7672    191:952     192:8296    193:5579    194:4124   
 195:3612    196:1700    197:1072    198:5504    199:5536    200:6654   
 201:3067    202:9463    203:9110    204:4674    205:2822    206:3086   
 207:2978    208:3938    209:3956    210:3527    211:1861    212:2497   
 213:2310    214:857     215:71      216:5568    217:1813    218:691    
 219:454     220:1444    221:788     222:478     223:676    

End of report


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