Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Aug 1 18:12:11 UTC 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 02 Aug, 2014

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

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

BGP routing table entries examined:                              505153
    Prefixes after maximum aggregation:                          196190
    Deaggregation factor:                                          2.57
    Unique aggregates announced to Internet:                     248397
Total ASes present in the Internet Routing Table:                 47367
    Prefixes per ASN:                                             10.66
Origin-only ASes present in the Internet Routing Table:           36014
Origin ASes announcing only one prefix:                           16383
Transit ASes present in the Internet Routing Table:                6123
Transit-only ASes present in the Internet Routing Table:            172
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:              2030
    Unregistered ASNs in the Routing Table:                         452
Number of 32-bit ASNs allocated by the RIRs:                       7109
Number of 32-bit ASNs visible in the Routing Table:                5230
Prefixes from 32-bit ASNs in the Routing Table:                   18854
Number of bogon 32-bit ASNs visible in the Routing Table:           470
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:            395
Number of addresses announced to Internet:                   2710217476
    Equivalent to 161 /8s, 138 /16s and 163 /24s
    Percentage of available address space announced:               73.2
    Percentage of allocated address space announced:               73.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               96.7
Total number of prefixes smaller than registry allocations:      173657

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

Prefixes being announced by APNIC Region ASes:                   121721
    Total APNIC prefixes after maximum aggregation:               35794
    APNIC Deaggregation factor:                                    3.40
Prefixes being announced from the APNIC address blocks:          125436
    Unique aggregates announced from the APNIC address blocks:    51941
APNIC Region origin ASes present in the Internet Routing Table:    4963
    APNIC Prefixes per ASN:                                       25.27
APNIC Region origin ASes announcing only one prefix:               1228
APNIC Region transit ASes present in the Internet Routing Table:    875
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         24
Number of APNIC region 32-bit ASNs visible in the Routing Table:   1025
Number of APNIC addresses announced to Internet:              734317184
    Equivalent to 43 /8s, 196 /16s and 202 /24s
    Percentage of available APNIC address space announced:         85.8

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:                    169960
    Total ARIN prefixes after maximum aggregation:                84347
    ARIN Deaggregation factor:                                     2.02
Prefixes being announced from the ARIN address blocks:           171799
    Unique aggregates announced from the ARIN address blocks:     80066
ARIN Region origin ASes present in the Internet Routing Table:    16335
    ARIN Prefixes per ASN:                                        10.52
ARIN Region origin ASes announcing only one prefix:                6120
ARIN Region transit ASes present in the Internet Routing Table:    1688
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          22
Number of ARIN region 32-bit ASNs visible in the Routing Table:     154
Number of ARIN addresses announced to Internet:              1090570752
    Equivalent to 65 /8s, 0 /16s and 202 /24s
    Percentage of available ARIN address space announced:          57.7

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:                    124402
    Total RIPE prefixes after maximum aggregation:                62985
    RIPE Deaggregation factor:                                     1.98
Prefixes being announced from the RIPE address blocks:           129274
    Unique aggregates announced from the RIPE address blocks:     81810
RIPE Region origin ASes present in the Internet Routing Table:    17723
    RIPE Prefixes per ASN:                                         7.29
RIPE Region origin ASes announcing only one prefix:                8256
RIPE Region transit ASes present in the Internet Routing Table:    2873
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:    2727
Number of RIPE addresses announced to Internet:               659039108
    Equivalent to 39 /8s, 72 /16s and 35 /24s
    Percentage of available RIPE address space announced:          95.8

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:                   58761
    Total LACNIC prefixes after maximum aggregation:              10289
    LACNIC Deaggregation factor:                                   5.71
Prefixes being announced from the LACNIC address blocks:          66487
    Unique aggregates announced from the LACNIC address blocks:   29734
LACNIC Region origin ASes present in the Internet Routing Table:   2191
    LACNIC Prefixes per ASN:                                      30.35
LACNIC Region origin ASes announcing only one prefix:               566
LACNIC Region transit ASes present in the Internet Routing Table:   454
Average LACNIC Region AS path length visible:                       4.6
    Max LACNIC Region AS path length visible:                        23
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  1276
Number of LACNIC addresses announced to Internet:             167649792
    Equivalent to 9 /8s, 254 /16s and 34 /24s
    Percentage of available LACNIC address space announced:        99.9

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:                  11040
    Total AfriNIC prefixes after maximum aggregation:              2738
    AfriNIC Deaggregation factor:                                  4.03
Prefixes being announced from the AfriNIC address blocks:         11762
    Unique aggregates announced from the AfriNIC address blocks:   4506
AfriNIC Region origin ASes present in the Internet Routing Table:   728
    AfriNIC Prefixes per ASN:                                     16.16
AfriNIC Region origin ASes announcing only one prefix:              213
AfriNIC Region transit ASes present in the Internet Routing Table:  159
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   48
Number of AfriNIC addresses announced to Internet:             58252288
    Equivalent to 3 /8s, 120 /16s and 220 /24s
    Percentage of available AfriNIC address space announced:       57.9

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     2948      11590         919   Korea Telecom
17974     2801        899          72   PT Telekomunikasi Indonesia
 7545     2331        320         118   TPG Telecom Limited
 4755     1866        392         200   TATA Communications formerly 
 9829     1649       1306          31   National Internet Backbone
 9583     1313        103         535   Sify Limited
 9498     1298        317          93   BHARTI Airtel Ltd.
 7552     1235       1098          14   Viettel Corporation
 4808     1207       2155         372   CNCGROUP IP network China169 
24560     1153        399         191   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     2943       3688          51   BellSouth.net Inc.
 7029     2771       1905         301   Windstream Communications Inc
22773     2729       2940         141   Cox Communications Inc.
18566     2047        379         178   MegaPath Corporation
20115     1745       1731         546   Charter Communications
 4323     1631       1072         411   tw telecom holdings, inc.
30036     1497        322         576   Mediacom Communications Corp
  701     1438      11203         726   MCI Communications Services, 
 6983     1390        817         313   ITC^Deltacom
22561     1305        406         233   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     1720        265         277   TELLCOM ILETISIM HIZMETLERI A
20940     1447        563        1062   Akamai International B.V.
 8402     1249        544          15   OJSC "Vimpelcom"
13188     1062        100          30   TOV "Bank-Inform"
31148     1041         45          19   Freenet Ltd.
 8551      994        371          42   Bezeq International-Ltd
 6849      819        356          27   JSC "Ukrtelecom"
 6830      776       2335         432   Liberty Global Operations B.V
12479      767        796          59   France Telecom Espana SA
 9198      598        346          28   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     3778       2030         111   NET Serviços de Comunicação S
10620     2939        476         214   Telmex Colombia S.A.
18881     2062       1036          22   Global Village Telecom
 7303     1770       1179         237   Telecom Argentina S.A.
 8151     1437       2982         418   Uninet S.A. de C.V.
 6503     1090        434          62   Axtel, S.A.B. de C.V.
 6147     1043        373          28   Telefonica del Peru S.A.A.
 7738      977       1882          41   Telemar Norte Leste S.A.
27947      892        130          53   Telconet S.A
26615      860       2325          35   Tim Celular 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
24863      913        280          26   Link Egypt (Link.NET)
 6713      673        744          37   Office National des Postes et
 8452      594        958          13   TE-AS
36992      310        784          26   ETISALAT MISR
24835      306        144           9   Vodafone Data
 3741      249        920         212   Internet Solutions
29571      236         22          17   Cote d'Ivoire Telecom
37054      232         19           6   Data Telecom Service
15706      187         32           6   Sudatel (Sudan Telecom Co. Lt
12258      177         27          68   MWEB CONNECT (PROPRIETARY) LI

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     3778       2030         111   NET Serviços de Comunicação S
 4766     2948      11590         919   Korea Telecom
 6389     2943       3688          51   BellSouth.net Inc.
10620     2939        476         214   Telmex Colombia S.A.
17974     2801        899          72   PT Telekomunikasi Indonesia
 7029     2771       1905         301   Windstream Communications Inc
22773     2729       2940         141   Cox Communications Inc.
 7545     2331        320         118   TPG Telecom Limited
18881     2062       1036          22   Global Village Telecom
18566     2047        379         178   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
 6389      2943        2892      BellSouth.net Inc.
17974      2801        2729      PT Telekomunikasi Indonesia
10620      2939        2725      Telmex Colombia S.A.
22773      2729        2588      Cox Communications Inc.
 7029      2771        2470      Windstream Communications Inc
 7545      2331        2213      TPG Telecom Limited
18881      2062        2040      Global Village Telecom
 4766      2948        2029      Korea Telecom
18566      2047        1869      MegaPath Corporation
 4755      1866        1666      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
55020   UNALLOCATED  8.30.123.0/24         3356       Level 3 Communicatio
27205   UNALLOCATED  8.38.16.0/21          6461       Abovenet Communicati

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

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

Network            Origin AS  Description
23.226.240.0/20      40430     colo4jax, LLC
23.226.240.0/21      40430     colo4jax, LLC
23.226.248.0/21      40430     colo4jax, LLC
24.231.96.0/24       21548     MTO Telecom Inc.
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<<

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       /9:13      /10:30      /11:91      /12:259     
/13:498     /14:982     /15:1704    /16:13037   /17:7026    /18:11700   
/19:24678   /20:35148   /21:37559   /22:54349   /23:47682   /24:268329  
/25:798     /26:808     /27:389     /28:13      /29:18      /30:10      
/31:1       /32:15      

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

  ASN   No of nets  Total ann.   Description
18566     2002          2047      MegaPath Corporation
22773     1972          2729      Cox Communications Inc.
 6389     1691          2943      BellSouth.net Inc.
 7029     1481          2771      Windstream Communications Inc
30036     1338          1497      Mediacom Communications Corp
11492     1185          1237      CABLE ONE, INC.
 6983     1096          1390      ITC^Deltacom
34984     1048          1720      TELLCOM ILETISIM HIZMETLERI A
10620     1029          2939      Telmex Colombia S.A.
22561     1003          1305      CenturyTel Internet Holdings,

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

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

   1:1315      2:657       3:3         4:15        5:1049      6:21     
   8:713      12:1854     13:4        14:1106     15:15       16:2      
  17:40       18:21       20:36       23:878      24:1748     27:1756   
  31:1470     32:41       33:2        34:5        36:140      37:1826   
  38:960      39:7        40:210      41:2663     42:259      43:156    
  44:15       45:45       46:2092     47:24       49:728      50:830    
  52:12       54:47       55:6        56:3        57:30       58:1218   
  59:614      60:424      61:1591     62:1251     63:1852     64:4363   
  65:2325     66:4229     67:2062     68:1054     69:3338     70:890    
  71:462      72:2020     74:2624     75:337      76:415      77:1654   
  78:804      79:704      80:1313     81:1217     82:769      83:771    
  84:768      85:1320     86:414      87:1146     88:467      89:1786   
  90:139      91:5713     92:771      93:1763     94:2028     95:1615   
  96:509      97:361      98:1109     99:49      100:65      101:700    
 103:5323    104:151     105:36      106:174     107:577     108:582    
 109:2009    110:1022    111:1333    112:666     113:857     114:772    
 115:1109    116:1116    117:1016    118:1503    119:1421    120:411    
 121:853     122:2157    123:1471    124:1427    125:1561    128:573    
 129:343     130:362     131:680     132:391     133:162     134:322    
 135:76      136:299     137:289     138:370     139:170     140:210    
 141:387     142:559     143:412     144:502     145:107     146:652    
 147:501     148:903     149:404     150:393     151:607     152:448    
 153:220     154:321     155:521     156:354     157:344     158:271    
 159:936     160:326     161:572     162:1671    163:332     164:694    
 165:630     166:344     167:674     168:1115    169:122     170:1380   
 171:183     172:62      173:1534    174:711     175:618     176:1415   
 177:3375    178:2073    179:789     180:1783    181:1323    182:1615   
 183:538     184:702     185:1909    186:2913    187:1652    188:2162   
 189:1471    190:7647    191:665     192:7444    193:5506    194:4045   
 195:3566    196:1430    197:668     198:5112    199:5545    200:6322   
 201:2735    202:9169    203:8997    204:4551    205:2636    206:2966   
 207:2950    208:3969    209:3745    210:3167    211:1750    212:2316   
 213:2115    214:878     215:86      216:5705    217:1683    218:615    
 219:331     220:1282    221:626     222:358     223:597    

End of report


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