[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Jun 21 18:33:19 UTC 2013


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 22 Jun, 2013

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

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

BGP routing table entries examined:                              457502
    Prefixes after maximum aggregation:                          186225
    Deaggregation factor:                                          2.46
    Unique aggregates announced to Internet:                     227498
Total ASes present in the Internet Routing Table:                 44356
    Prefixes per ASN:                                             10.31
Origin-only ASes present in the Internet Routing Table:           34763
Origin ASes announcing only one prefix:                           16168
Transit ASes present in the Internet Routing Table:                5859
Transit-only ASes present in the Internet Routing Table:            143
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      29
    Max AS path prepend of ASN ( 36992)                              22
Prefixes from unregistered ASNs in the Routing Table:              1392
    Unregistered ASNs in the Routing Table:                         609
Number of 32-bit ASNs allocated by the RIRs:                       4809
Number of 32-bit ASNs visible in the Routing Table:                3734
Prefixes from 32-bit ASNs in the Routing Table:                   10899
Special use prefixes present in the Routing Table:                   25
Prefixes being announced from unallocated address space:            222
Number of addresses announced to Internet:                   2642684428
    Equivalent to 157 /8s, 132 /16s and 42 /24s
    Percentage of available address space announced:               71.4
    Percentage of allocated address space announced:               71.4
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               94.6
Total number of prefixes smaller than registry allocations:      160098

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

Prefixes being announced by APNIC Region ASes:                   110296
    Total APNIC prefixes after maximum aggregation:               33646
    APNIC Deaggregation factor:                                    3.28
Prefixes being announced from the APNIC address blocks:          112510
    Unique aggregates announced from the APNIC address blocks:    46108
APNIC Region origin ASes present in the Internet Routing Table:    4852
    APNIC Prefixes per ASN:                                       23.19
APNIC Region origin ASes announcing only one prefix:               1220
APNIC Region transit ASes present in the Internet Routing Table:    819
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         25
Number of APNIC region 32-bit ASNs visible in the Routing Table:    583
Number of APNIC addresses announced to Internet:              725408992
    Equivalent to 43 /8s, 60 /16s and 220 /24s
    Percentage of available APNIC address space announced:         84.8

APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 131072-133119
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:                    158910
    Total ARIN prefixes after maximum aggregation:                80418
    ARIN Deaggregation factor:                                     1.98
Prefixes being announced from the ARIN address blocks:           159578
    Unique aggregates announced from the ARIN address blocks:     74067
ARIN Region origin ASes present in the Internet Routing Table:    15746
    ARIN Prefixes per ASN:                                        10.13
ARIN Region origin ASes announcing only one prefix:                5994
ARIN Region transit ASes present in the Internet Routing Table:    1644
Average ARIN Region AS path length visible:                         4.1
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:      19
Number of ARIN addresses announced to Internet:              1081744192
    Equivalent to 64 /8s, 122 /16s and 27 /24s
    Percentage of available ARIN address space announced:          57.2

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:                    117878
    Total RIPE prefixes after maximum aggregation:                60243
    RIPE Deaggregation factor:                                     1.96
Prefixes being announced from the RIPE address blocks:           120804
    Unique aggregates announced from the RIPE address blocks:     78364
RIPE Region origin ASes present in the Internet Routing Table:    17245
    RIPE Prefixes per ASN:                                         7.01
RIPE Region origin ASes announcing only one prefix:                8181
RIPE Region transit ASes present in the Internet Routing Table:    2830
Average RIPE Region AS path length visible:                         5.1
    Max RIPE Region AS path length visible:                          29
Number of RIPE region 32-bit ASNs visible in the Routing Table:    2360
Number of RIPE addresses announced to Internet:               656483940
    Equivalent to 39 /8s, 33 /16s and 38 /24s
    Percentage of available RIPE address space announced:          95.4

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, 196608-199679
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:                   48510
    Total LACNIC prefixes after maximum aggregation:               9360
    LACNIC Deaggregation factor:                                   5.18
Prefixes being announced from the LACNIC address blocks:          52885
    Unique aggregates announced from the LACNIC address blocks:   24810
LACNIC Region origin ASes present in the Internet Routing Table:   1968
    LACNIC Prefixes per ASN:                                      26.87
LACNIC Region origin ASes announcing only one prefix:               583
LACNIC Region transit ASes present in the Internet Routing Table:   356
Average LACNIC Region AS path length visible:                       4.8
    Max LACNIC Region AS path length visible:                        29
Number of LACNIC region 32-bit ASNs visible in the Routing Table:   766
Number of LACNIC addresses announced to Internet:             132418440
    Equivalent to 7 /8s, 228 /16s and 139 /24s
    Percentage of available LACNIC address space announced:        78.9

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:                  10911
    Total AfriNIC prefixes after maximum aggregation:              2517
    AfriNIC Deaggregation factor:                                  4.33
Prefixes being announced from the AfriNIC address blocks:         11503
    Unique aggregates announced from the AfriNIC address blocks:   3944
AfriNIC Region origin ASes present in the Internet Routing Table:   640
    AfriNIC Prefixes per ASN:                                     17.97
AfriNIC Region origin ASes announcing only one prefix:              190
AfriNIC Region transit ASes present in the Internet Routing Table:  131
Average AfriNIC Region AS path length visible:                      4.8
    Max AfriNIC Region AS path length visible:                       25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    6
Number of AfriNIC addresses announced to Internet:             46313472
    Equivalent to 2 /8s, 194 /16s and 176 /24s
    Percentage of available AfriNIC address space announced:       46.0

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     2944      11561         922   Korea Telecom (KIX)
17974     2556        855          91   PT TELEKOMUNIKASI INDONESIA
 7545     2010        320         109   TPG Internet Pty Ltd
 4755     1749        391         191   TATA Communications formerly 
 9829     1518       1205          40   BSNL National Internet Backbo
 7552     1494       1082           9   Vietel Corporation
 9583     1284         98         539   Sify Limited
 4808     1146       2124         334   CNCGROUP IP network: China169
 9498     1135        309          71   BHARTI Airtel Ltd.
24560     1077        394         164   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     2998       3691          73   bellsouth.net, inc. 
18566     2064        382         184   Covad Communications 
 1785     1993        678         125   PaeTec Communications, Inc.
22773     1984       2927         123   Cox Communications, Inc.
20115     1666       1617         617   Charter Communications 
 4323     1623       1137         402   Time Warner Telecom
  701     1533      11143         800   UUNET Technologies, Inc. 
30036     1336        301         645   Mediacom Communications Corp 
 7018     1301      11039         832   AT&T WorldNet Services
11492     1221        217         360   Cable One 

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
 8402     1686        544          16   Corbina telecom
34984     1279        244         222   BILISIM TELEKOM
 2118     1069         97          13   EUnet/RELCOM Autonomous Syste
20940      890        308         697   Akamai Technologies European 
13188      825         98          79   Educational Network
31148      805         40          25   FreeNet ISP
 8551      772        370          44   Bezeq International
 6830      765       2376         439   UPC Distribution Services
12479      684        789          57   Uni2 Autonomous System
34744      675        172          76   SC GVM SISTEM 2003 SRL

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     2804       1558         107   NET Servicos de Comunicao S.A
10620     2662        418         209   TVCABLE BOGOTA 
 7303     1732       1155         221   Telecom Argentina Stet-France
 8151     1257       2719         384   UniNet S.A. de C.V. 
18881     1001        844          20   Global Village Telecom 
 6503      864        434          64   AVANTEL, S.A. 
27947      840         89         105   Telconet S.A
 3816      715        306          85   Empresa Nacional de Telecomun
 7738      698       1370          35   Telecomunicacoes da Bahia S.A
 6147      663        374          25   Telefonica Del Peru 

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     1237         80           4   MOBITEL
24863      883        274          30   LINKdotNET AS number
 6713      542        617          25   Itissalat Al-MAGHRIB
 8452      464        956           9   TEDATA
24835      344         80           8   RAYA Telecom - Egypt
 3741      261        922         219   The Internet Solution 
15706      222         32           6   Sudatel Internet Exchange Aut
29571      207         17          12   Ci Telecom Autonomous system 
36992      198        527          21   Etisalat MISR
12258      193         28          66   Vodacom Internet Company 

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

Global Per AS prefix count summary
----------------------------------

  ASN   No of nets  /20 equiv  MaxAgg  Description
 6389     2998       3691          73   bellsouth.net, inc. 
 4766     2944      11561         922   Korea Telecom (KIX)
28573     2804       1558         107   NET Servicos de Comunicao S.A
10620     2662        418         209   TVCABLE BOGOTA 
17974     2556        855          91   PT TELEKOMUNIKASI INDONESIA
18566     2064        382         184   Covad Communications 
 7545     2010        320         109   TPG Internet Pty Ltd
 1785     1993        678         125   PaeTec Communications, Inc.
22773     1984       2927         123   Cox Communications, Inc.
 4755     1749        391         191   TATA Communications formerly 

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

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

  ASN   No of nets  Net Savings Description
28573      2804        2697      NET Servicos de Comunicao S.A
17974      2556        2465      PT TELEKOMUNIKASI INDONESIA
10620      2662        2453      TVCABLE BOGOTA 
 4766      2944        2022      Korea Telecom (KIX)
 7545      2010        1901      TPG Internet Pty Ltd
18566      2064        1880      Covad Communications 
 1785      1993        1868      PaeTec Communications, Inc.
22773      1984        1861      Cox Communications, Inc.
 8402      1686        1670      Corbina telecom
 4755      1749        1558      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
15132   UNALLOCATED  12.9.150.0/24         7018       AT&T WorldNet Servic
30031   UNALLOCATED  12.27.122.0/24        7018       AT&T WorldNet Servic
13317   UNALLOCATED  12.44.10.0/24         7018       AT&T WorldNet Servic
23502   UNALLOCATED  12.44.44.0/24         7018       AT&T WorldNet Servic
17300   UNALLOCATED  12.45.103.0/24         209       Qwest 
17300   UNALLOCATED  12.45.110.0/24         701       UUNET Technologies, 
16476   UNALLOCATED  12.46.27.0/24         7018       AT&T WorldNet Servic
14764   UNALLOCATED  12.108.237.0/24       7018       AT&T WorldNet Servic
33649   UNALLOCATED  12.111.112.0/24      19029       New Edge Networks 
26064   UNALLOCATED  12.149.37.0/24        7018       AT&T WorldNet Servic

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

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

Prefix             Origin AS  Description
128.0.0.0/24          2876     Jump Management SRL
128.0.16.0/21        43568     RIPE Network Coordination Cen
128.0.24.0/21        41794     Altline LLC
128.0.46.0/23        39743     Mobimax Telecom SRL
128.0.53.0/24        60993     Totalsoft SA
128.0.54.0/24        60972     Carpatair SA
128.0.55.0/24        48571     SC efectRO SRL
128.0.57.0/24        60993     Totalsoft SA
128.0.58.0/23         9050     RTD-ROMTELECOM Autonomous Sys
128.0.60.0/24         9050     RTD-ROMTELECOM Autonomous Sys

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

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

Network            Origin AS  Description
62.61.220.0/24       24974     Tachyon Europe BV - Wireless 
62.61.221.0/24       24974     Tachyon Europe BV - Wireless 
64.185.224.0/24      27431     JTL Networks Inc.
64.185.225.0/24      27431     JTL Networks Inc.
64.185.226.0/24      27431     JTL Networks Inc.
64.185.227.0/24      27431     JTL Networks Inc.
64.185.228.0/24      27431     JTL Networks Inc.
64.185.229.0/24      27431     JTL Networks Inc.
64.185.230.0/24      27431     JTL Networks Inc.
64.185.231.0/24      27431     JTL Networks Inc.

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        /8:17       /9:11      /10:30      /11:91      /12:250     
/13:483     /14:900     /15:1603    /16:12707   /17:6652    /18:11188   
/19:22220   /20:32166   /21:34525   /22:47754   /23:42327   /24:240620  
/25:1303    /26:1659    /27:849     /28:46      /29:65      /30:19      
/31:0       /32:17      

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

  ASN   No of nets  Total ann.   Description
18566     2015          2064      Covad Communications 
 6389     1721          2998      bellsouth.net, inc. 
 8402     1382          1686      Corbina telecom
22773     1289          1984      Cox Communications, Inc.
36998     1231          1237      MOBITEL
30036     1203          1336      Mediacom Communications Corp 
11492     1183          1221      Cable One 
 1785     1062          1993      PaeTec Communications, Inc.
 6983     1011          1141      ITC^Deltacom 
10620      992          2662      TVCABLE BOGOTA 

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

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

   1:832       2:836       3:3         4:19        5:800       6:15     
   8:557      12:1924     13:3        14:849      15:11       16:3      
  17:10       20:17       23:280      24:1769     27:1494     31:1262   
  32:43       33:2        34:5        36:47       37:1869     38:880    
  39:2        40:170      41:2780     42:202      44:8        46:1909   
  47:2        49:1322     50:734      52:12       54:35       55:7      
  57:26       58:1162     59:575      60:317      61:1411     62:1122   
  63:2027     64:4314     65:2159     66:4175     67:2073     68:1075   
  69:3271     70:856      71:489      72:1916     74:2475     75:322    
  76:303      77:1123     78:1028     79:612      80:1262     81:1008   
  82:624      83:582      84:540      85:1169     86:436      87:992    
  88:541      89:1747     90:147      91:5522     92:607      93:1721   
  94:1878     95:1668     96:515      97:346      98:1011     99:42     
 100:30      101:329     103:2834    105:517     106:142     107:207    
 108:513     109:1836    110:905     111:1060    112:546     113:814    
 114:712     115:973     116:980     117:841     118:1105    119:1323   
 120:388     121:733     122:1793    123:1214    124:1373    125:1419   
 128:638     129:223     130:310     131:662     132:358     133:155    
 134:268     135:67      136:223     137:245     138:350     139:192    
 140:210     141:330     142:532     143:382     144:500     145:94     
 146:507     147:380     148:670     149:348     150:157     151:533    
 152:420     153:189     154:23      155:414     156:270     157:397    
 158:279     159:727     160:344     161:448     162:451     163:222    
 164:604     165:498     166:243     167:596     168:1035    169:129    
 170:1052    171:181     172:21      173:1578    174:539     175:470    
 176:985     177:2083    178:1857    179:44      180:1457    181:466    
 182:1227    183:388     184:655     185:553     186:2268    187:1291   
 188:2147    189:1285    190:6802    192:6735    193:5671    194:4602   
 195:3438    196:1358    197:944     198:4494    199:5340    200:5988   
 201:2230    202:8827    203:8912    204:4516    205:2567    206:2801   
 207:2843    208:4055    209:3683    210:2943    211:1514    212:2181   
 213:1968    214:925     215:99      216:5310    217:1620    218:619    
 219:335     220:1306    221:553     222:325     223:457    

End of report


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